TCA-1MEG High Impedance Buffer Amplifier Instruction Manual
Contents
1. Probe compensation output Probe tip xa c non terminated i lt P6139A P6139A probe tip TCA 1MEG Figure 7 Setup with the P6139A attached to the TCA 1MEG 4 Press AUTOSET or otherwise adjust your host instrument to display a meaningful waveform 5 On the Vertical menu select Vertical Setup and then choose the tab of the channel that the TCA 1MEG is connected to a Set coupling to DC Set trigger level to 50 b Set bandwdith to Full c Set vertical scale to 100 mV division d Set offset to 1 6 e Adjust vertical position of the waveform to display on center screen f Close the panel 6 Set horizontal scale to 1 0 ms 18 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Functional Checks 7 On the Horiz Acq menu select Horizontal Acquisition Setup and then choose the Acquisition tab a Set acquisition mode to High Resolution b Close the panel 8 Adjust the trimmer in the probe accessible through the compensation box until you see a square wave with a perfectly flat top on the display Refer to Figure 8 below supplied with your probe Adjustment tools from some probe models may not be compatible with your probe qula Undercompensated Overcompensated Properly compensated T CAUTION To avoid damaging the trimmer use the adjustment tool Figure 8 Probe compensat2. vii oa n a a RIPE ERE es ix Manual Structure Dey a ad ee ix Manual Conventions X Contacting Tektronix xi Getting Started 1 Product DeScEl pblOTi ua e NC Wee Sco gud 1 INCOCSSOLIGS Sue cs ee oo ol d ae te rat aba 3 Input Voltage Derating 4 Probe Calibration for High Accuracy 4 Functionality Not Supported 5 InstallatlOH 2432422 b m l bur eb d ede Pte eds 6 Connecting the TCA 1MEG to the Host Instrument 6 Connecting a Probe to the TCA 1MEG 8 Attaching and Grounding a TCA 1MEG System 9 Functional Overview 10 M run PONE 12 Functional Checks 13 Calibrate the TCA 1MEG to the Host Instrument 16 LF Probe Compensation Optional Check 17 Check Vertical Input Coupling 20 Check Bandwidth Limit 24 Specifications cse REX ias p RR RAO ROC 29 Performance Verification 39 TCA 1MEG System Bandwidth 40 Replaceable Partfts 45 Parts Ordering Information 45 Using the Replaceable Parts List
3. Before you connect a probe or other device ensure that the device is compatible with the TCA 1MEG Refer to Functionality Not Supported on page 5 of the Getting Started section Follow the instructions in your probe manual for connecting your probe or other device to a TEKPROBE BNC connector NOTE The maximum V division setting with a 1X probe or with no probe is 10 V division The Volts division of the host instrument may change when you connect probes with different attenuation factors Before connecting a probe or other device to the TCA 1MEG always refer to the list of compatible devices in Table 1 on page 2 8 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Getting Started Attaching and Grounding a TCA 1MEG System ZN Always use these procedures for safely connecting and dis connecting the TCA 1MEG and probe to the circuit under test WARNING To avoid fire or personal injury connect the TCA IMEG and probe output to the measurement instrument before connecting the probe or other input device to the circuit under test Disconnect the probe input and probe ground from the circuit under test before disconnecting the probe or the TCA 1MEG from the measurement instrument After connecting the TCA 1MEG to the host instrument and connecting a probe to TCA 1MEG connect the ground lead of the probe to the ground of the circuit under test before taking any measurements Be careful that no part of
4. 1X 0 1X preamplifier Current probes P6021 AC 15 60 MHz P6022 AC 6 Ay p 120 MHz AM503S AC DC current amplifier measurement system Others Tektronix 50 Q BNC to BNC coaxial part number cable 012 0057 01 Tektronix 50 Q feed through termina part number tion 011 0049 02 Tektronix 50 Q BNC to BNC coaxial part number cable male to male 012 0482 00 2 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Getting Started Accessories The TCA 1MEG amplifier package has a set of standard accessories Standard Accessories for the TCA 1MEG These accessories are P6139A 10X Passive Probe with standard accessories and Instructions Certificate of Traceable Calibration TCA IMEG High Impedance Buffer Amplifier Instruction Manual Tektronix part number 071 1010 XX TDS6000 Series Product Software Tektronix part number 063 3541 XX also available on the Tektronix website TDS7000 Series Product Software Tektronix part number 063 3461 XX also available on the Tektronix website Optional Accessories for the TCA 1MEG Service software for the TCA 1MEG is included on the TDS Ap plications Software CD for your host instrument The CD is also available as an optional accessory for the TCA 1MEG Tektronix part number 063 3376 XX The software is also available for download from the Tektronix website The Tektronix website provides up to date firmware and software upgrades TCA 1MEG High Impedance
5. date improved components as they become available and to give you the benefit of the latest circuit improvements Therefore when ordering parts it is important to include the following information in your order m Part number m Instrument type or model number m Instrument serial number m Instrument modification number if applicable If a part you order has been replaced with a different or improved part your local Tektronix service center or representative will contact you concerning any change in the part number TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 45 Replaceable Parts Using the Replaceable Parts List 46 The tabular information in the Replaceable Parts List is arranged for quick retrieval Understanding the structure and features of the list will help you find the information you need for ordering replacement parts Item Names In the Replaceable Parts List an Item Name is separated from the description by a colon Because of space limitations an Item Name may sometimes appear as incomplete For further Item Name identification U S Federal Cataloging Handbook H6 1 can be used where possible Indentation System This parts list is indented to show the relationship between items The following example is of the indentation system used in the Description column 1 2 3 4 5 Name amp Description Assembly and or Component Attaching parts for Assembly and or Component END ATTACHING PAR
6. use a Tektronix TekConnect 50 Q adapter TCA BNC TCA SMA or TCA N in place of TCA 1MEG When the host instrument detects an incompatible device connected to the TCA 1MEG it displays a message that an incompatible combination of accessories has been installed The host instrument however will not detect all incompatible devices Readout and Power Connection Pins The BNC connector of the 1 is not compatible for use with nonTektronix probes cables and adapters that have readout or power connection pins CAUTION To avoid damage to your equipment do not use the 1 with nonTektronix probes cables and adapters that have readout or power connection pins TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 5 Getting Started Installation The TCA 1MEG connects directly to the TekConnect interface on the TekConnect host instrument Firmware Requirements To ensure compatibility of your TekConnect host instrument with the TCA 1MEG your host instrument for example TDS6000 TDS7000 or CSA7000 series must have the firmware upgrade V2 1 0 or higher or higher firmware with an earlier version of firmware Doing so would require reinstallation of up to date firmware on the host instrument CAUTION To avoid instrument malfunctions do not overwrite V2 1 0 Firmware upgrade instructions are available on the CD ROMs included with the TCA 1MEG The upgrades are also availble on the Tekt
7. 1MEG Test Record System bandwidth verification NOTE If the results of these tests do not meet the specifications listed on the TCA 1MEG Test record contact your Tektronix Service representative TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Performance Verification Use this test record to record the test results of the TCA 1MEG System Bandwidth tests TCA 1MEG Test Record Instrument Serial Number Certificate Number Temperature RH 96 Date of Calibration Technician Input Amplitude 600 mV System bandwidth verification Input voltage Specification Measured as Full 500 MHz 425 mVp p 100 MHz limit min 75 MHz gt 425 mV p max 125 MHz 425 mV p 20 MHz limit max 25 MHz lt 425 mV p 1 The 425 mV specification limit is based on a 600 mV input level 3 dB voltage level input voltage x 70 7 calculated as 425 mV 600 mV x 0 707 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 43 Performance Verification 44 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual See Replaceable Parts This section contains a list of replaceable parts for the 1 High Impedance Buffer Amplifier Use this list to identify and order replacement parts Parts Ordering Information Replacement parts are available from or through your local Tektronix Inc service center or representative Changes to Tektronix instruments are sometimes made to accommo
8. 46 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual i Table of Contents List of Figures Figure 1 TCA 1MEG High Impedance Buffer Amplifier Figure 2 Connecting and disconnecting the TCA 1MEG Figure 3 Calibration data message Figure 4 TekConnect and TEKPROBE Interface features Figure 5 Simplified block diagram Figure 6 Probe Compensation Output of the TDS6604 Figure 7 Setup with the P6139A attached to the TOASIMEG vo edt a CY De eae hier Ec eot EE CH Ep ME tens Figure 8 Probe compensation waveforms Figure 9 Test equipment hookup for the Vertical Input Coupling and Bandwidth Limit checks Figure 10 Typical waveform at GND Figure 11 Typical waveform at AC Coupling Figure 12 Typical waveform at DC Coupling Figure 13 Typical waveform at Full 500 MHz bandwidth Figure 14 Typical waveform at 100 MHz bandwidth Figure 15 Typical waveform at 20 MHz bandwidth Figure 16 Typical Input Impedance and Phase versus Erequleney z r yuncas ca OC ENTRA eI IHE GERE DOR E Figure 17 Voltage Derating versus Frequency Figure 18 TCA 1MEG dimensions Figure 19 TCA 1MEG System Bandwidth equipment h okup cs eu bees ced yes ee heed vee E ES end eor Figure 20 TCA 1MEG replaceable parts Figure 21 TCA
9. 58 16 Buttons Ch1 Position Ch1 Scale 500 0mV LAN T d AFC S B ttm S Hama in P A dtm Pe dap m pap Rise C 1 6 4us Low signal arnplitude mali EU R M 400us 1 8 0us pt A Chi Y Chan1 Chan2 Chan3 Chand Display Position Termination Coupling Bandwidth Probe aod 179 Scale 100 wie m Label sooomy 9 Vertical Zoom Offset 2 0 07 Close Atten Figure 10 Typical waveform at GND 7 Set Coupling to AC and set trigger level to 5046 The resulting waveform should appear as shown in Figure 11 on page 22 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 21 Functional Checks File Edit Vertical Horz cq Trig Display Cursors Measure Masks Math Utilities Help Tek Hun Sample 13 Mar 02 15 0 Buttons Ch1 Position Ch1 Scale 500 0mV a rw Low signal amplitude M 400us 125 8 0us pt Chi 100m Y Chani Chan2 Chan3 Chand Display Position Termination Coupling Bandwidth 5 Probe i LJ r MEE z Scale 9 soo 0my 1 Vertical Zoom Offset Ld s 0 0v Figure 11 Typical waveform at AC Coupling 8 Set Coupling to DC and set trigger level to 5046 The resulting waveform should appear as shown in Figure 12 on page 23 22 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Functional Checks File Edi Vertical Horz cq Trig Display Cursors Measure Masks Math Utilities Help Tek Run
10. Buffer Amplifier Instruction Manual 3 Getting Started Input Voltage Derating The TCA 1MEG is designed to be used in a high voltage environ ment However voltage input rating descreases as the frequency of the applied signal increases Refer to Table 2 on page 29 of the Specifications section for input voltage rating and Figure 17 on page 32 for voltage versus frequency derating information Probe Calibration for High Accuracy To ensure high accuracy a probe calibration routine is recommended for the TCA 1MEG m When the ambient temperature changes by more that 5 C 9 F from the temperature of the previous calibration m When you install the TCA 1MEG on a host instrument channel where it has not been calibrated previously Refer to page 16 of the Functional Checks section for the probe calibration procedure Probes or adapters with the following characteristics will not calibrate using the internal calibration signal of the TekConnect host instrument m Probes or adapters without TEKPROBE readout capabilities W Probes with attenuation levels greater than 20X due to the low signal level at the output of the internal calibration generator 4 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Getting Started Functionality Not Supported 50 Q Termination at BNC input The TCA 1MEG amplifier does not provide a 50 2 termination at its BNC input If you require 50 Q termination for your applications
11. Sample 13 Mar 02 14 59 46 Buttons Ye Chi Position z Ch1 Scale B mv Rise C01 6 122us Low signal amplitude Lhi v M 400us 1 Chl 1 85 Chani Chan2 Chans Chana Display Position i Termination m Goupling Bandwidth 5 Probe ma E Scale Teskeyi Label s pomv 9 om s Vertical Zoom Offset i oov Close Figure 12 Typical waveform at DC Coupling 9 Leave the Coupling set to DC 10 Close the panel TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 23 Functional Checks Check Bandwidth Limit Verify bandwidth limits at full 100 MHz and 20 MHz Test Equipment Hookup Use the same hardware configuration as the Vertical Input Coupling check Refer to Figure 9 on page 20 Test Procedure Do the following 1 On the front panel of the host instrument select the channel that the TCA 1MEG is connected to Set the vertical scale to 200 mV division Set the horizontal scale to 40 ns division On the Vertical menu select Vertical Setup and then choose the tab of the channel that the TCA 1MEG is connected to a Set coupling to AC b Set bandwidth to Full 500 MHz Set to trigger at 50 Set the horizontal position of the leading edge to the left of center screen NOTE When full bandwidth is set overshoot and ringing on the signal is normal and does not indicate problems with the TCA 1MEG The resulting waveform should
12. life N CAUTION Caution statements identify conditions or practices that could result in damage to this product or other property Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product Symbols on the Product These symbols may appear on the product A CAUTION Refer to Manual vi TCA 1MEG High Impedance Buffer Amplifier Instruction Manual pee 5 Service Safety Summary Only qualified personnel should perform service procedures Read this Service Safety Summary and the General Safety Summary before performing any service procedures Do Not Service Alone Do not perform internal service or adjustments of this product or host instrument unless another person capable of rendering first aid and resuscitation is present Disconnect Power To avoid electric shock switch off the host instrument power then disconnect the host instrument power cord from the mains power Use Care When Servicing with Power On Dangerous voltages or currents may exist in this product and host instrument Disconnect power remove battery if applicable and disconnect test leads before removing protective panels soldering or replacing components To avoid electric shock do not touch exposed connections
13. resulting waveform should appear as shown in Figure 15 on page 27 26 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Functional Checks File Edit Vertical Tek Sample Horz cq Trig Display Cursors Measure Masks Utilities Help 14 Mar 02 08 41 41 Tuton Ch1 Offset IR Ch1 Scale 200 0m M 40 0ns 1 2 amp D ps pt A Chi z 4 Chani Chan2 Chan3 Chang Display Position r Termination Coupling Bandwidth Probe m E Scale sk m Label sooomy 1 Vertical Zoom e E Off set 0 0V Figure 15 Typical waveform at 20 MHz bandwidth 9 After completing the bandwidth limit checks do the following a b Set bandwidth to Full Set coupling to DC Press AUTOSET Close the panel TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 27 Functional Checks 28 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual pep hl 2 Specifications These specifications apply to the TCA 1MEG High Impedance Buffer Amplifier TekConnect adapter used with Tektronix TekCon nect host instruments Specifications for the TCA 1MEG fall into three categories warranty typical and nominal characteristics Performance Verification procedures are provided in the Performance Verification section for specifications marked with the symbol in Table 2 Specifications voltages that are beyond the input voltage rating for the TCA IMEG A CAUTION To preve
14. the ground lead or probe grounding ring contacts voltage in the circuit under test Except for the probe tip and BNC center conductor all accessible metal including the ground clip is connected to the BNC outer shell and is considered earth ground TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 9 Getting Started Functional Overview 10 The TekConnect to TEKPROBE Interface TCA 1MEG is powered through the Tektronix TekConnect Interface The TekConnect Interface provides a communication path through contact pins on the host instrument Power signal offset and probe characteristic data transfer through the interface to the host instrument Refer to Figure 4 below for TekConnect and TEKPROBE interface features Also refer to your oscilloscope or probe documentation for more detailed specifications TekConnect interface TEKPROBE interface 1 MEG Latch button Latch 5V Rd 6 TekConnect A OFFSET 1V interface DATA c contacts 2 CLOCK oe 2 Signal 15 5 5V 4 15V Ground GND Figure 4 TekConnect and TEKPROBE Interface features When the TCA 1MEG is connected to the host instrument the input of the host instrument is set to 1 MQ If the TCA 1MEG was previously connected to the host instrument channel the input coupling and bandwidth limit are set to the settings previously used If the TCA 1MEG has never been connected to the host ins
15. 1MEG optional accessories TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Table of Contents List of Tables Table 1 Compatible devices that require high impedance ul 3000002002 n e ga tows a e 00 01 3 Table 2 Warranted electrical specifications 29 Table 3 Typical electrical characteristics 30 Table 4 Physical characteristics 33 Table 5 Environmental characteristics 34 Table 6 Certifications and compliances 34 Table 7 Equipment required for performance verification 39 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual iii Table of Contents iv TCA 1MEG High Impedance Buffer Amplifier Instruction Manual pee General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it To avoid potential hazards use this product only as specified Only qualified personnel should perform service procedures To Avoid Fire or Personal Injury Connect and Disconnect Properly Connect TCA 1MEG amplifier to the host instrument then connect the probe or other input device to the TCA 1MEG Connect the probe or other input device to the device under test Before disconnecting TCA 1MEG from the host instrument disconnect the probe or other input device and the probe ground from the device under test and then disconn
16. Instruction Manual Tektronix TCA IMEG High Impedance Buffer Amplifier 071 1010 00 www tektronix com Copyright Tektronix Inc All rights reserved Tektronix products are covered by U S and foreign patents issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Tektronix Inc P O Box 500 Beaverton OR 97077 TEKTRONIX TEK TEKPROBE and TekConnect are registered trademarks of Tektronix Inc WARRANTY Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one 1 year from the date of shipment If any such product proves defective during this warranty period Tektronix at its option either will repair the defective product without charge for parts and labor or will provide a replacement in exchange for the defective product In order to obtain service under this warranty Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service Customer shall be responsible for packaging and shipping the defective product to the service center designated by Tektronix with shipping charges prepaid Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located Customer shall be responsible fo
17. TCA 1MEG High Impedance Buffer Amplifier Instruction Manual vii Service Safety Summary viii TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Preface This is the Instruction manual for the TCA 1MEG High Impedance Buffer Amplifier Read this preface to learn how this manual is structured and what conventions it uses Before using this manual or the TCA 1MEG amplifier read the General Safety Summary and Service Safety Summary sections at the beginning of this manual for safety and other important background information Manual Structure This manual is divided into sections which are made of related topics m Getting Started includes a product description list of accessories and instructions for installation m Functional Checks includes procedures for verifying that the TCA 1MEG functions properly with a host instrument W Specifications includes warranted electrical specifications typical electrical characteristics and graphs for typical input impedance and typical bandwidth m Performance Verification includes a procedure for verifying warranted electrical specifications NOTE Service software for this instrument is included on the TDS Applications CD ROM Tektronix part number 063 3376 XX for your host instrument and is also available for download from the Tektronix website Be sure to read the introductory text for each procedure These introductions provide important information needed to use the
18. TCA 1MEG High Impedance Buffer Amplifier correctly safely and efficiently TCA 1MEG High Impedance Buffer Amplifier Instruction Manual ix Preface Manual Conventions The following conventions are used in this manual Safety Symbols and terms related to safety appear in the Service Safety Summary found at the beginning of this manual X TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Preface Contacting Tektronix Phone Address Web site Sales support Service support Technical support 1 800 833 9200 Tektronix Inc 14200 SW Karl Braun Drive P O Box 500 Beaverton OR 97077 USA www tektronix com 1 800 833 9200 select option 1 1 800 833 9200 select option 2 Email techsupport tektronix com 1 800 833 9200 select option 3 6 00 a m 5 00 p m Pacific time This phone number is toll free in North America After office hours please leave a voice mail message Outside North America contact a Tektronix sales office or distributor see the Tektronix web site for a list of offices TCA 1MEG High Impedance Buffer Amplifier Instruction Manual xi Preface xii TCA 1MEG High Impedance Buffer Amplifier Instruction Manual E Getting Started Product Description The TCA 1MEG is a High Impedance Buffer Amplifier system that broadens the functionality of a TekConnect host instrument Features include Input impedance 1 MQ 10 pF Bandwidth 500 MHz Band
19. TS Detail Part of Assembly and or Component Attaching parts for Detail Part END ATTACHING PARTS Parts of Detail Part Attaching parts for Parts of Detail Part END ATTACHING PARTS Attaching parts always appear at the same indentation as the item it mounts while the detail parts are indented to the right Indented items are part of and included with the next higher indentation Attaching parts must be purchased separately unless otherwise specified Abbreviations Abbreviations conform to American National Standards Institute ANSI standard Y1 1 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Replaceable Parts 1000 22026 HO NOLU3AV38 epoo diz ayeys 112 00S XO8 Od H Nh VH8 THVM MS 091 1 sseJppy ONI XINOH DI3 L 60008 Jounjyoejnueyy po5 ASIN Xopul SS019 s1o1njoejnue yj 47 TCA 1MEG High Impedance Buffered Amplifier Instruction Manaul Replaceable Parts XX 0101 120 60008 93INL VO L NOLLOQH LISNEHO31 IVONVIN XX 0101 120 V6 19d 60008 S3lHOSS329V QUvaNvLs 3aoud 3AISSVd X0i V6 L9d V6E19d S3lH0SS329V qu VaNvis V6EL9d Ulu 1034 1 1 8 380udN3 4301 INHOD3WI 93 1 1 60008 3 8 4 9313 4 SAWL VOL 93 1 1 1 02 ou ped H po uondu s p g euieu st Zl juoosq eAn29J3 ou ped ou X pul II XiuoJy8 9 54 sued qe92e d 1 53M L V21 0c 91nDiJ TCA 1MEG High Impedance Buffe
20. appear as shown in Figure 13 on page 25 24 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Functional Checks File Edi Vertical Horz cq Trig Display Tek Bun Sample Ka ftm m mail dr di Doo EH nai solution Chan1 Chan2 Chan3 Chana Cursors Measure Masks M 40 Ons 1 2 Chi Display Position Termination MES Scale 2000mv Vertical Zoom Offset le Q Figure 13 Typical waveform at Full 500 MHz bandwidth 7 Set bandwidth to 100 MHz Math X Utilities Help Chi Offset O 0 Ch1 Scale 2000mV NOTE When 100 MHz bandwidth is set the signal risetime increases and overshoot and ringing decreases The resulting waveform should appear as shown in Figure 14 on page 26 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 25 Functional Checks File Edit Vertical Horz cq Trig Display Cursors Measure Masks Math Tek Hun Sample 14 Mar 02 08 40 43 Utilities Help Ch1 Offset 0 0v Pom PSI i a M 40 0ns 1 2 8DDpspt Chi Chant Chan2 Chans Chang Ch1 Scale 200 0m Display Position r Termination Goupling Bandwidth Probe EX 7 E Scale 100 MHz Label 200 0m pe Vertical Zoom Offset 5 a 0 0V Figure 14 Typical waveform at 100 MHz bandwidth 8 Set bandwidth to 20 MHz Cal Deskew atten Close NOTE When the 20 MHz bandwidth limit is set signal risetime is near 15 ns The
21. cy 32 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Specifications r 31 5 mm d 1 240 in T 108 08 mm 4 255 in 72 9 mm 2 870 in 28 58 mm r4 1 125 in 1 ed 46 mm 1 815 in 43 43 mm 1 710 in Lt D Figure 18 TCA 1MEG dimensions Table 4 Physical characteristics Characteristic Description Unit weight TCA 1MEG 5 5 oz 155 g net TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 33 Specifications Table 5 Environmental characteristics Characteristic Operating Temperature Humidity Altitude Description 32 F to 122 F 0 C to 50 C lt 80 relative humidity through the entire operating range Operating 9 842 ft 3 000 m Nonoperating 50 000 ft 15 240 m Table 6 Certifications and compliances Category EMC Compliance FCC Compliance EC Declaration of Conformity Low Voltage U S Nationally Recognized Testing Laboratory Listing Canadian Certification Standards or description Meets the intent of Directive 89 336 EEC for Electromagnetic Compatibility when it is used with the product s stated in the specifications table Refer to the EMC specification published for the stated products May not meet the intent of the directive if
22. ducts Equipment is usually cord connected CAT I Secondary signal level or battery operated circuits of electronic equipment TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 35 Specifications Table 6 Certifications and compliances cont Category Standards or description Pollution Degree A measure of the contaminates that could occur in the Descriptions environment around and within a product Typically the internal environment inside a product is considered to be the same as the external Products should be used only in the environment for which they are rated Pollution Degree 1 No pollution or only dry nonconductive pollution occurs Products in this category are generally encapsulated hermetically sealed or located in clean rooms Pollution Degree 2 Normally only dry nonconductive pollution occurs Occasionally a temporary conductivity that is caused by condensation must be expected This location is a typical office home environment Temporary condensation occurs only when the product is out of service Pollution Degree 3 Conductive pollution or dry nonconductive pollution that becomes conductive due to condensation These are sheltered locations where neither temperature nor humidity is controlled The area is protected from direct sunshine rain or direct wind Pollution Degree 4 Pollution that generates persistent conductivity through conductive dust rain or snow Typical outdoor location
23. ect the probe or other input device from the TCA 1MEG amplifier Ground the Product This product is indirectly grounded through the grounding conductor of the host instrument power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for further ratings information before making connections to the product The common terminal is at ground potential Do not connect the common terminal to elevated voltages Connect the ground lead of the probe to earth ground only Do Not Operate With Suspected Failures If you suspect there is damage to this product have it inspected by qualified service personnel Do Not Operate in Wet Damp Conditions Do Not Operate in an Explosive Atmosphere Keep Product Surfaces Clean and Dry TCA 1MEG High Impedance Buffer Amplifier Instruction Manual V General Safety Summary Provide Proper Ventilation Refer to the manual s installation instructions for details on installing the product so it has proper ventilation Safety Terms and Symbols Terms in This Manual These terms may appear in this manual z y WARNING Warning statements identify conditions or practices that could result in injury or loss of
24. ed to Choose Calibrate Probe This operation may take several minutes Do not remove the TCA 1MEG or cable during this operation When probe calibration is complete the Probe Status field should read Pass If the field reads Fail contact the your Tektronix Service representative Close the probe calibration panel TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Functional Checks LF Probe Compensation Optional Check Variations in the TCA 1MEG input characteristics may require you to adjust the low frequency compensation of the probe that is connected to the TCA 1MEG Consider this whenever you connect a different probe to a 1 or when you move a probe from one TCA 1MEG to another If a 1 KHz calibrated square wave displayed at 1 ms division shows significant differences between the leading and trailing edges perform these steps to optimize low frequency compensation 1 Connect the TCA 1MEG to a host instrument channel 2 Connect the probe to the TEKPROBE input of the TCA 1MEG 3 Using a nonterminated probe tip adapter connect the probe to the probe calibration signal on the front panel of the oscilloscope NOTE After connecting the TCA 1MEG to the host instrument allow them to warm up for at least twenty minutes before performing the functional checks TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 17 Functional Checks TDS6000 Series Oscilloscope
25. igure 19 below Leveled sine wave TDS6000 Series Oscilloscop Output 5 L J NE U jJ 50 0 TCA 1MEG terminator 50 Q coaxial cable Figure 19 TCA 1MEG System Bandwidth equipment hookup TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Performance Verification System Bandwidth Test Procedure Use these instructions for testing the TCA 1MEG system bandwidth 1 Set the signal generator to a reference frequency of 50 KHz setting the initial output level to display a waveform 2 Push AUTOSET to display a waveform on host instrument screen 3 On the Horiz Acq menu select Horizontal Acquisition Setup and then select the Acquisition tab a Setacquisition to Average b Adjust the number of averages to 16 c Close the panel 4 Use the Trigger area of the front panel to a Set trigger source to the channel where the TCA 1MEG is connected b Set trigger coupling to DC c Settrigger slope to Positive d Set trigger mode to Auto 5 On the Measure menu select Measurement Setup select Amplitude and then select Peak to Peak 6 On the Vertical menu select Vertical Setup choose the tab for the channel where the TCA 1MEG is connected and then set vertical coupling to DC 7 Use the vertical scale knob to set the channel to 100 mV division 8 Perform steps 9 through 13 fo
26. ion waveforms TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 19 Functional Checks Check Vertical Input Coupling 20 Verify the AC DC and GND coupling of the TCA 1MEG Test Equipment Hookup Refer to the hookup shown in Figure 9 TDS6000 TekConnect oscilloscope El ooo 9 Bes S I z TCA 1MEG BNC cable from TCA 1MEG input to PROBE COMPENSATION output Do not use a 50 Q terminator Figure 9 Test equipment hookup for the Vertical Input Coupling and Bandwidth Limit checks Test Procedure Do the following 1 On the front panel of the host instrument press the button corresponding to the channel the TCA 1MEG is connected to 2 Push the AUTOSET button to display a waveform on the screen 3 If autoset does not set the host instrument to 500 mV division manually change vertical V division to 500 mV 4 Using the Vertical Position control knob position the waveform to two divisons above center screen 5 On the Vertical menu select Vertical Setup and then choose the tab of the channel that the TCA 1MEG is connected to 6 Set coupling to GND TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Functional Checks The resulting waveform should appear as shown in Figure 10 below File Edit Vertical Horiz cq Trig Display Cursors Measure Masks Utilities Help Tek Run Sample 13 Mar 02 14
27. mands that other 550 TekConnect host instruments use If needed refer to Label the user manual and online help supplied with your Diset instrument Termination Coupling Bandwidth To set up your host instrument to enable quick setting changes while testing Probe Cal Deskew 1 On the display screen choose Buttons display Zoom Setup 2 On the front panel activate Touch Screen 3 On the Vertical menu select Vertical Setup A tabbed panel of Vertical options displays across the bottom of the screen TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 15 Functional Checks Calibrate the TCA 1MEG to the Host Instrument Perform a probe calibration of the TCA 1MEG to your TekConnect host instrument before you perform the functional checks A BNC to BNC 50 Q coaxial cable or suitable equivalent is required for this procedure Test Equipment Hookup 1 Connect the TCA 1MEG adapter to a channel on your host instrument Connect a BNC to BNC 50 Q coaxial cable to the BNC input of the TCA 1MEG Do not terminate the cable with a 50 Q terminator Connect the other end of the BNC to BNC 50 Q coaxial cable to the PROBE COMPENSATION connector of the host instrument Test Procedure Do the following iF 16 On the Vertical menu select Probe Cal A probe calibration panel appears along the right side of the screen Select the signal channel that the TCA 1MEG is connect
28. ng in narrow spaces around the TekConnect release button and connectors Do not use abrasive compounds on any part of the instument CAUTION To avoid permanent damage to the TCA 1MEG while cleaning use only enough solution to dampen the cloth or swab The TCA 1MEG is not waterproof TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Era 51 Functional Checks The purpose of these procedures is to confirm that the TCA 1MEG High Impedance Buffer Amplifier functions properly with the host instrument Perform a probe calibration a TCA 1MEG calibration procedure before performing these functional checks Refer to Calibrate the TCA 1MEG to the Host Instrument on page 16 of this section NOTE Whoever performs these procedures should be familiar with the basic operation control and setup of the TekConnect host instrument and should refer to the host instrument manual and online help for detailed operating information Perform these functional checks m Probe LF Compensation optional check m Vertical Input Coupling m Bandwidth Limit TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 13 Functional Checks TCA 1MEG Readings on the Host Instrument The TCA 1MEG readings on the host instrument display screen may vary from instrument to instrument NOTE The output amplitude and frequency shown for the TCA 1MEG will depend on the probe compensation output of the TekConnect host instrument The o
29. nt damage to the TCA 1MEG do not apply specified in Table 2 Table 2 Warranted electrical specifications Characteristic Description Bandwidth TCA 1MEG only at 3dB 500 MHz when used with a Tektronix host 100 mV division with 50 2 termination instrument that has 21 5 GHz bandwidth 100 MHz bandwidth limit 25 20 MHz bandwidth limit 25 Attenuation Maximum sensitivity to 10 V division in 1 2 5 sequence on a Tektronix host instrument Input Capacitance 10pF 2pF Input Resistance DC Coupled 1MQ 196 at DC 1MQ 10 at V gt 50 V P6139A Probe tip Bandwidth with 2500 MHz with TCA 1MEG connected to a TCA 1MEG at 100 mV division Tektronix 50 2 host instrument that has 1 5 GHz bandwidth TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 29 Specifications Table 2 Warranted electrical specifications Cont Characteristic Input Voltage Rating with TCA 1MEG or a 1X probe Description 150 V CAT 1 1 R S voltage limited to 150 V for arbitrary waveshapes including DC For pulse widths less than 50 us 400 Vpk lt 30 DF RMS Root Mean Square rms the square root of the average of the sum of the squares of the instantaneous voltage in one cycle gt xy n Table 3 Typical electrical characteristics Characteristic Linear dynamic range Bandwidth TCA 1MEG only Linearity Full bandwidth small signal risetime TCA 1MEG only AC Coupling LF 3dB cutoff freq
30. r paying all shipping charges duties taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by im proper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service the product b to repair damage resulting from improper use or connection to incompatible equipment or c to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the product THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS PRODUCT IN LIEU OF ANY OTHER WARRANTIES EXPRESSED OR IM PLIED TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRAN TIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TEKTRONIX RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT SPECIAL INCIDEN TAL OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBIL ITY OF SUCH DAMAGES i Table of Contents General Safety Summary V Service Safety Summary
31. r each of these vertical bandwidth settings of the host instrument a Full b 100 MHz c 20 MHz 9 On the Vertical Setup panel set the vertical bandwidth that you are testing refer to step 8 above TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 41 Performance Verification 42 10 Set the horizontal scale to 10 us division 11 On the leveled sine wave generator do the following a Setthe output frequency to 50 KHz b Adjust the output amplitude until the peak to peak measurement displaying on the oscilloscope screen is between 599 mV and 601 mV 12 On the leveled sine wave generater set the output frequency according to the bandwidth limit you are testing a For bandwidth limit set to Full set the sine wave generator to 500 MHz Set the horizontal scale of the oscilloscope to 5 ns division Record the measured value b For bandwidth limit set to 100 MHz e Set the sine wave generator to 75 MHz Set the horizontal scale of the oscilloscope to 10 ns division Record the measured value e Set the sine wave generator to 125 MHz Record the measured value c For bandwidth limit set to 20 MHz Set the sine wave generator to 15 MHz Set the horizontal scale of the oscilloscope to 20 ns division Record the measured value Set the sine wave generator to 25 MHz Record the measured value 13 Verify that the peak to peak measurement of the oscilloscope meets the specification listed on the TCA
32. red Amplifier Instruction Manual 48 Replaceable Parts 931439 000 501 XX 19v 90 60008 0 L 2A 00 38VM13OS LONGOYd yd 3HVALLdOS XX 976 690 9 S3ld3S 0009SQ 1 1798 690 60008 0 L 2A 00 AYVMLIOS LONGOYd 034 38VM1JOS 1798 690 t ou ped jN uonduosep weu spez O juo2sq 942943 ou ped ou X pul mn ou IEH S xiuony l 9 By 49 TCA 1MEG High Impedance Buffered Amplifier Instruction Manaul Replaceable Parts qo 1onaoud XX 9ZEE E90 60008 Old 4HVM 40S SNOL VOT ddV S3lH3S 000 SQ L XX 9266 690 L Ic S3IH0SS399V IWNOILdO ou yed po uonduosep 9 aweu Spezi ID juoosq ou ied ou X pul III ou XiuoJya 9 Bly 5911095999 jeuondo 031 11 Lz 91nDiJ TCA 1MEG High Impedance Buffered Amplifier Instruction Manual 50
33. ronix website at www tektronix com Select the Software amp Drivers link on the home page of the website The Tektronix website provides up to date software and firmware upgrades Connecting the TCA 1MEG to the Host Instrument The TekConnect Interface features a spring loaded latch that provides audible and tactile confirmation that a reliable connection has been made to the TekConnect host instrument Slide the TCA 1MEG into the TekConnect receptacle on the host instrument The unit snaps into the host instrument when fully engaged See Figure 2 on page 7 To release the TCA 1MEG from the host instrument grasp the unit depress the latch button and pull it out of the TekConnect receptacle 6 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Getting Started Latch button Figure 2 Connecting and disconnecting the NOTE If you connect the TCA 1MEG to a channel where it has already been probe calibrated a message similar to the one shown in Figure 3 below may appear on the display screen Follow the instructions on the message Calibration data is available for a passive probe whose attenuation factor matchesthe probe attached to Channel You may either Ignore the data but keep it on file Installthe data or Erase the data Figure 3 Calibration data message TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 7 Getting Started Connecting a Probe to the
34. s Equipment Type Test and measuring Safety Class Class 1 as defined in IEC 61010 1 Annex H grounded product Pollution Degree Pollution Degree 2 as defined in IEC 61010 1 Note Rated for indoor use only 36 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual The following servicing instructions are for use only by qualified personnel To avoid injury do not perform any servicing other than that stated in the operating instructions unless you are qualified to do so Refer to all safety summaries before performing any service ALLA AA 633 AINE Performance Verification Use the following procedure to verify that the TCA 1MEG High Impedance Buffer Amplier meets the warranted specification marked with a in Table 2 of the Specifications section Perform a probe calibration a TCA 1MEG calibration procedure before performing this test Refer to page 16 of the Functional Checks section for the probe calibration procedure Verify this specification m TCA 1MEG System Bandwidth Before beginning this procedure photocopy the test record on page 43 and use it to record the performance test results The equipment in Table 7 or a suitable substitute is required for testing the TCA 1MEG Table 7 Equipment required for performance verification Minimum Description requirements Examples Oscilloscope TCA 1MEG in a Tektronix 1 TDS6000 TDS7000 or TekConnect Oscilloscope CSA7000 TekConnect with a bandwid
35. th 21 5GHz instruments 50 Q coaxial cable Connects BNC input ofthe Tektronix part number TCA IMEG to the PROBE 1 012 0057 XX COMPENSATION connec tion on the front panel of the host instrument Leveled sine wave 50 KHz to 500 MHz 3 Wavetek 95001 generator amplitude accuracy 50 Q feedthrough BNC connectors Tektronix part number termination 011 0049 XX 1 Wavetek 9500 Ocilloscope Calibrator with two 9510 Output Modules TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 39 Performance Verification Required Software To ensure compatibility of your TekConnect host instrument with the TCA 1MEG your host instrument for example TDS6000 TDS7000 or CSA7000 series must have the firmware upgrade V2 1 0 or higher Upgrade instructions are available on the included CD ROM or visit our website at www tek com and select the Software and Drivers link NOTE The test procedure references commands available on a TDS6604 Oscilloscope These commands are similar to commands that other TekConnect host instruments use If needed refer to the user manual and online help supplied with your instrument TCA 1MEG System Bandwidth 40 This test verifies the system bandwidth Test Equipment Hookup Connect the TCA 1MEG to a channel of the host instrument Use a 50 Q coaxial cable and 50 Q BNC feed through termination to connect the output of the leveled sine wave generator to the input of the TCA 1MEG Refer to F
36. trument channel the input coupling and bandwidth limit are set to the default TCA 1MEG settings DC coupling and Full bandwidth When a probe is connected to the TCA 1MEG the host instrument reads its attenuation factor and displays readouts adjusted for the attenuation factor of the probe The host instrument controls offset if the connected probe requires it TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Getting Started Operating Characteristics Although the TCA 1MEG amplfier has no replaceable parts this functional overview is intended to help you isolate failures to either the probe or the host instrument Refer to Figure 5 for a simplified block diagram of the amplifier dan e DC E Attenuator 500 network TEKPROBE TekConnect interface Bandwidth select interface TEKPROBE power and communication Figure 5 Simplified block diagram TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 11 Getting Started Cleaning 12 Follow these guidelines for cleaning the TCA 1MEG amplifier General Care Do not use chemical cleaning agents Avoid using chemicals that contain acetone benzene toluene xylene or similar solvents because they may damage the plastic Clean the exterior surfaces with a dry lint free cloth or a soft bristle brush If dirt remains use a cloth or swab dampened with a 75 isopropyl alcohol solution A swab is useful for cleani
37. uency DC Offset Drift Displayed system input offset Propagation Delay Description The lesser of 5 divisions or the dynamic range of the TekConnect host instrument 2500 MHz when used with a TekConnect host instrument that has 21 5 GHz band width 100 MHz 25 20 MHz 25 0 2 800 ps calculated from 0 40 measured bandwidth lt 10 Hz with TCA 1MEG lt 1 Hz with P6139A probe attached 600 uV C or less at output of TCA 1MEG 0 2 divisions or less when used within 5 C of calibrated temperature for V division settings 210 mV division 2 ns 30 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Specifications Input Impedance and Phase versus Frequency 1M Q 0 N N Magnitude zar 51005 100KQ 20 0 30 0 A0KQ hi 40 0 _ E MS 50 0 gt o 21 0 Phase 500 g 3 G 700 3 N 5 100 Q N 80 0 ro 900 10 Q 100 0 N N N N N N N N N N im m c x m m x IT x o x x x D v 8 e S Frequency Figure 16 Typical Input Impedance and Phase versus Frequency TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 31 Specifications Voltage Derating versus Frequency 1000 100 0 1 L TT LLL LLLI m HII N N N N N N N N I I I I I I I I E x lt lt D e o 2 hz e e Frequency Figure 17 Voltage Derating versus Frequen
38. used with other products Emissions comply with FCC Code of Federal Regulations 47 Part 15 Subpart B Class A Limits Compliance was demonstrated to the following specification as listed in the Official Journal of the European Communities Low Voltage Directive 73 23 EEC amended by 93 68 EEC EN 61010 1 A2 1995 Safety requirements for electrical equipment for measurement control and laboratory use UL3111 1 Standard for electrical measuring and test equipment CAN CSA C22 2 No 1010 1 Safety requirements for electrical equipment for measurement control and laboratory use 34 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Specifications Table 6 Certifications and compliances cont Category Additional Compliance Installation Overvoltage Category Descriptions Standards or description ISA 582 02 01 1999 Safety standard for electrical and electronic test measuring controlling and related equipment IEC61010 1 A2 1995 Safety requirements for electrical equipment for measurement control and laboratory use Terminals on this product may have different installation overvoltage category designations The installation categories are CAT III Distribution level mains usually permanently connected Equipment at this level is typically in a fixed industrial location CAT II Local level mains wall sockets Equipment at this level includes appliances portable tools and similar pro
39. utput amplitude frequency and voltage offset of the host instrument is engraved next to the Probe Compensation output see Figure 6 4 PROBE COMPENSATION 1 0V 2 0V 0 8V 1khz 1 6V 1khz INTO 5002 INTO 1MQ ADJUST PROBE AT 1ms Figure 6 Probe Compensation Output of the TDS6604 14 TCA 1MEG High Impedance Buffer Amplifier Instruction Manual Functional Checks Required Equipment Required equipment is a TDS6000 TDS7000 or CSA7000 TekConnect instrument a TCA 1MEG a BNC to BNC 50 Q coaxial cable and a nonterminated BNC probe tip adapter Tektronix part number 103 0226 XX NOTE Unless specifically directed do not terminate the probe compensation output of the host instrument or the TCA 1MEG input with a 50 2feedthrough terminator Required Software To ensure compatibility of your TekConnect host instrument with the TCA 1MEG your host instrument for example TDS6000 TDS7000 or CSA7000 series must have the firmware upgrade V2 1 0 or higher Upgrade instructions are available on the included CD ROM or visit our website at www tek com and select the Software and Drivers link The Tektronix website provides up to date firmware and software upgrades He Edt Vetical Hss es Tig Dy The test procedures that follow reference commands Yatisl Setup available on a TDS6604 Oscilloscope These Zoom Controls commands are similar to the com
40. width limit selectable Full 500 MHz 100 MHz and 20 MHz m Input coupling selectable AC DC and GND m Input Connection 1 Q TEKPROBE BNC The TCA 1MEG amplifier or other Tektronix TekConnect probes and adapters enable you to easily configure each channel of your host instrument for the input characteristics you require To achieve a 1 MQ system when you need it use this amplifier to connect a Tektronix 1 MQ TEKPROBE BNC probe or other standard 1 MQ BNC accessory to your 50 Q TekConnect host instrument To regain your high speed 50 Q signal path simply replace the TCA 1MEG with a high performance TekConnect probe or adapter Figure 1 TCA 1MEG High Impedance Buffer Amplifier TCA 1MEG High Impedance Buffer Amplifier Instruction Manual 1 Getting Started Table 1 lists Tektronix high voltage passive probes high voltage active probes current probes and other measurement analysis tools that require high impedance input Use these devices with the TCA 1MEG to extend the use of your TekConnect host instrument Table 1 Compatible devices that require high impedance input Device type Mode Description Passive voltage probes P6101B 15 MHz 1X passive P6139A 500 MHz 10X passive High voltage probes P6015A 20 kV 1000X 75 MHz passive P5100 2 5 kV 100X 250 MHz passive P5205 1 3 kV 100 MHz active differential P5210 4 4 kV 50 MHz active differential Micro volt differential probe ADA400A 100X 10X
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