USB-1208HS-4AO User's Guide - from Measurement Computing
Contents
1. Parameter Specification Connector type Screw terminal Wire gauge range 16 AWG to 30 AWG Table 17 Single ended mode pinout Pin Signal name Pin Signal name 1 AINO 29 AOUTO 2 AGND 30 AOUT1 3 AIN1 31 AGND 4 AGND 32 AOUT2 5 AIN2 33 AOUT3 6 AGND 34 AGND 7 AIN3 35 AICKI 8 AGND 36 AICKO 9 AIN4 37 AOCKI 10 AGND 38 AOCKO 11 AIN5 39 TRIG 12 AGND 40 GND 13 AIN6 41 CTRO 14 AGND 42 CTR1 15 AIN7 43 TMR 16 AGND 44 GND 17 empty 45 empty 18 5V 46 5V 19 GND 47 GND 20 DIOO 48 DIO8 21 DIO1 49 DIO9 22 DIO2 50 DIO10 23 DIO3 51 DIO11 24 DIO4 52 DIO12 25 DIO5 53 DIO13 26 DIO6 54 DIO14 27 DIO7 55 DIO15 28 GND 56 GND 22 USB 1208HS 4AO User s Guide Specifications Table 18 Differential mode pinout Pin Signal name Pin Signal name 1 AINO 29 AOUTO 2 AGND 30 AOUT1 3 AINO 31 AGND 4 AGND 32 AOUT2 5 AIN1 33 AOUT3 6 AGND 34 AGND 7 AIN1 35 AICKI 8 AGND 36 AICKO 9 AIN2 37 AOCKI 10 AGND 38 AOCKO 11 AIN2 39 TRIG 12 AGND 40 GND 13 AIN3 41 CTRO 14 AGND 42 CTR1 15 AINS 43 TMR 16 AGND 44 GND 17 empty 45 empty 18 5V 46 5V 19 GND 47 GND 20 DIOO 48 DIO8 21 DIO1 49 DIO9 22 DIO2 50 DIO10 23 DIO3 51 DIO11 24 DIO4 52 DIO12 25 DIO5 53 DIO13 26 DIO6 54 DIO14 27 DIO7 55 DIO15 28 GND 56 GND 23 CE Declaration of Conformity2. 0 5 V absolute min 0 V recommended min Output high voltage 4 4 V min IOH 50 uA 3 76 V min OH 24 mA Output low voltage 0 1 V max IOL 50 uA 0 44 V max IOL 24 mA Output current 24 mA max per terminal refer to Power section for additional information 19 USB 1208HS 4AO User s Guide Specifications Counters Table 9 Counter specifications Parameter Specification Counter terminal names CTRO CTRI1 Counter type Event counter Number of channels 2 Input type Schmitt trigger 33 Q series resistor 47 kQ pull down to ground Schmitt trigger hysteresis 0 4 V to 1 2 V Input high voltage 2 2 V min 5 5 V absolute max Input low voltage 1 5 V max 0 5 V absolute min 0 V recommended min Resolution 32 bits Maximum input frequency 20 MHz Counter read write rates software paced 33 to 8000 reads writes per second typ system dependent High pulse width 25 ns min Low pulse width 25 ns min Timer Table 10 Timer specifications Parameter Specification Timer terminal name TMR Timer type PWM output with count period delay and pulse width registers Output value Default state is idle low with pulses high software selectable output invert Internal clock frequency 40 MHz Register widths 32 bits High pulse width 20 ns min Low pulse width 20 ns min Out
3. 5 V SE mode 2 63 typ 4 03 max 2 5 V SE mode 1 59 typ 2 70 max 0 10 V SE mode 3 29 typ 5 13 max Table 3 summarizes the noise performance for the USB 1208HS 4A0 Noise distribution is determined by gathering 50 kS with inputs tied to ground at the user connector Samples are gathered at the maximum specified sample rate of 1 MS s Table 3 Noise performance Range Typical counts LSBrms 20 V DIFF mode 3 0 45 10 V DIFF mode 3 0 45 5 V DIFF mode 3 0 45 10 V SE mode 5 0 91 5 V SE mode y 0 91 2 5 V SE mode gt 0 91 0 10 V SE mode 5 0 91 Table 4 Input settling time in us typical Condition Range 1 LSB 4 LSB 8 LSB full scale to full scale 10 V 1 5 1 1 1 0 channel switch same range 5 y 2 1 LI 1 0 10 SNE taneg 25 V 2 2 LI 1 0 0Vtol0 V 2 6 1 1 1 0 17 USB 1208HS 4AO User s Guide Specifications Analog output Table 5 Analog output specifications Parameter Condition Specification D A converter Texas Instruments DAC7553 Number of channels 4 independent Resolution 12 bits Output range Calibrated 10 V Uncalibrated 10 2 V Output transient Host PC is reset powered on suspended or Duration 3 ms typ a reset command is issued to device Amplitude 6 V p p typ D A update rate Software paced 33 to 5000 S s typ system dependent Hardware paced 1 MHz
4. Manufacturer Measurement Computing Corporation Address 10 Commerce Way Suite 1008 Norton MA 02766 USA Category Electrical equipment for measurement control and laboratory use Measurement Computing Corporation declares under sole responsibility that the products USB 1208HS 4A0 to which this declaration relates is in conformity with the relevant provisions of the following standards or other documents EC EMC Directive 2004 108 EC General Requirements EN 61326 1 2006 IEC 61326 1 2005 Emissions EN 55011 2007 CISPR 11 2003 Radiated emissions Group 1 Class A ENS55011 2007 CISPR 11 2003 Conducted emissions Group 1 Class A Immunity EN 61326 1 2006 Table 3 IEC 61000 4 2 2001 Electrostatic Discharge immunity IEC 61000 4 3 2002 Radiated Electromagnetic Field immunity To maintain compliance to the standards of this declaration the following conditions must be met The host computer peripheral equipment power sources and expansion hardware must be CE compliant All I O cables must be shielded with the shields connected to ground J O cables must be less than 3 meters 9 75 feet in length The host computer must be properly grounded The host computer must be USB 2 0 compliant Equipment must be operated in a controlled electromagnetic environment as defined by Standards EN 61326 1 2006 or IEC 61326 1 2005 Note Data acquisition equipment may exhibit noise or incr
5. 1208HS 4AO User s Guide Specifications External trigger Table 7 External trigger specifications Parameter Specification Trigger source TRIG input Trigger mode Software selectable for edge or level sensitive rising or falling edge high or low level Power on default is edge sensitive rising edge Trigger latency 1 us I clock cycle max Trigger pulse width 100 ns min Input type Schmitt trigger 33 Q series resistor and 47 kQ pull down to ground Schmitt trigger hysteresis 0 4 V to 1 2 V Input high voltage 2 2 V min 5 5 V absolute max Input low voltage 1 5 V max 0 5 V absolute min 0 V recommended min External clock input output Table 8 External clock I O specifications Parameter Specification Terminal names AICKI AICKO AOCKI AOCKO Terminal types AxCKI Input active on rising edge AxCKO Output power on default is 0 V active on rising edge Terminal descriptions AxCKI Receives sampling clock from external source AxCKO Outputs the internal sampling clock D A or A D clock or pulse generated from AxCKI when in external clock mode Input clock rate 1 MHz max Clock pulse width AxCKI 400 ns min AxCKO 400 ns min Input type Schmitt trigger 33 Q series resistor 47 kQ pull down to ground Schmitt trigger hysteresis 0 4 V to 1 2 V Input high voltage 2 2 V min 5 5 V absolute max Input low voltage 1 5 V max
6. CD This booklet is available in PDF at www mccdaq com PDFmanuals DAQ Software Quick Start pdf Installing the hardware Be sure you are using the latest system software Before you install the device run Windows Update to update your operating system with the latest USB drivers Install the MCC DAQ software before you install your board The driver needed to run your board is installed with the MCC DAQ software Therefore you need to install the software before you install your board Refer to the Quick Start Guide for instructions To connect the USB 1208HS 4A0 to your system turn your computer on and connect the USB cable to a USB port on your computer or to an external USB hub connected to your computer The USB cable provides power and communication to the USB 1208HS 4A0 When you connect the USB 1208HS 4A0 for the first time a Found New Hardware dialog opens when the operating system detects the device The Status LED turns on this indicates that communication is established between the device and the computer Refer to Figure 2 on page 9 for the location of the Status LED When the dialog closes the installation is complete USB 1208HS 4AO User s Guide Installing the USB 1208HS 4AO Caution Do not disconnect any device from the USB bus while the computer is communicating with the device or you may lose data and or your ability to communicate with the USB 1208HS 4A0 If the Status LED turns off The Status LED
7. max per channel Sample clock source Internal D A clock or AOCKI Monotonicity 12 bits Output current 3 mA max per channel Output short circuit Output connect to GND Unlimited duration 10 mA typ protection Output coupling DC Power up and reset state OV Output noise 0 53 mV rms Settling time to 0 05 20 V output step RL 5 kQ CL 200 pf 5 uS max Absolute accuracy 0 1 Slew rate 6 7 V us typ Offset error drift 10 ppm C typ Gain error drift 65 ppm C typ Digital input output Table 6 Digital I O specifications Parameter Specification Digital type CMOS Number of I O 16 Configuration Each bit may be configured as input power on default or output Pull up configuration The port has 47 KQ resistors configurable as pull up or pull down with an internal jumper The default setting is pull down Digital I O transfer rate system paced 33 to 8000 port reads writes or single bit reads writes per second typ system dependent Input high voltage 2 0 V min 5 5 V absolute max Input low voltage 0 8 V max 0 5 V absolute min 0 V recommended min Output high voltage 4 4 V min IOH 50 uA 3 76 V min IOH 24 mA Output low voltage 0 1 V max IOL 50 uA 0 44 V max IOL 24 mA Output current 24 mA max per terminal refer to Power section for additional information 18 USB
8. turns off if communication is lost between the device and the computer To restore communication disconnect the USB cable from the computer and reconnect it The Status LED should turn on Calibrating the USB 1208HS 4AO The USB 1208HS 4A0 is shipped fully calibrated Calibration coefficients are stored in EEPROM Return the device to Measurement Computing Corporation when calibration is required The normal calibration interval is once per year Chapter 3 Functional Details Analog input acquisition modes The USB 1208HS 4A0 can acquire analog input data in two basic modes software paced and hardware paced Software paced mode You can acquire one analog sample at a time in software paced mode You initiate the A D conversion by calling a software command The analog value is converted to digital data and returned to the computer You can repeat this procedure until you have the total number of samples that you want The throughput sample rate in software paced mode is system dependent and can range from 33 S s to 4000 S s Hardware paced mode You can acquire data from up to eight channels in hardware paced mode The analog data is continuously acquired converted to digital values and written to an onboard FIFO buffer on the device until you stop the scan The FIFO buffer is serviced in blocks as the data is transferred from the USB 1208HS 4AO FIFO buffer to the memory buffer on your computer The maximum sampling
9. Figure 1 USB 1208HS 4A0 functional block diagram Chapter 2 Installing the USB 1208HS 4AO What comes with your shipment The following items are shipped with the USB 1208HS 4A0 Hardware USB 1208HS 4A0O USB cable Software MCC DAQ CD Documentation In addition to this hardware user s guide you should also receive the Quick Start Guide This booklet provides an overview of the MCC DAQ software you received with the device and includes information about installing the software Please read this booklet completely before installing any software or hardware Unpacking As with any electronic device take care while handling to avoid damage from static electricity Before removing the USB 1208HS 4A0 from its packaging ground yourself using a wrist strap or touch either the computer chassis or other grounded object to eliminate any stored static charge If the device is damaged notify Measurement Computing Corporation immediately by phone fax or email Knowledgebase kb mccdag com Phone 508 946 5100 and follow the instructions for reaching Tech Support Fax 508 946 9500 to the attention of Tech Support Email techsupport mccdaq com For international customers contact your local distributor Refer to the International Distributors section on our web site at www mccdag com International Installing the software Refer to the Quick Start Guide for instructions on installing the software on the MCC DAQ
10. High or low level The default setting at power up is edge sensitive rising edge Retrigger The acquisition uses the trigger settings for positive edge negative edge and level sensitive edge sensitive but automatically re arms the trigger after it is activated Power output You can use the two 5V connections to supply power to external devices or circuitry These terminals can output up to 285 mA Refer to Figure 4 and Figure 3 on page 10 for the location of this pin Caution The 5V terminals are outputs Do not connect to an external power supply or you may damage the USB 1208HS 4A0 and possibly the computer Ground The analog ground AGND connections provide a common ground for all analog I O channels The ground GND connections provide a common ground for the digital I O timer counter I O timer clock I O and the 5 V terminals 15 Chapter 4 Specifications All specifications are subject to change without notice Typical for 25 C unless otherwise specified Specifications in italic text are guaranteed by design Analog input Table 1 Analog input specifications Parameter Condition Specification A D converter Analog Devices AD7329 13 bit successive approximation type Input ranges Software selectable per channel Differential 20 V 10 V 5 V The voltage level on each individual AIN input is limited to 14 V m SE 10V 5V 2 5V 0Vto10V Number of channels 4 diffe
11. Installing the USB 1208HS 4A0 rrnassvnnnnvnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 7 What comes with your shipment esnoronnvnorrnnennvnerrrnennnnenranennenenrnnennenenravsnnenenrsnsnnnnsnrsssnnenenrssnnensnrsssnnenenrnssnnene 7 Hd ai T Software Doc mentatiom s an RN F o NN 7 Installing the software skissene a Sate R A E A Sophias vestee Bags sivh caseobasdags SRG Senere is 7 Installing the hard Ware noc ii iia 7 Calibrating the USB 1208HS 4AQ oi aeeoa r a EEEo E E a te eden 8 Chapter 3 Functional Details rrannvnnnnvrnnnvennnnvnnnnnvennnnnnnnvennnnvnnnnnnnnnnnnnnnnnnnnnnennnnnnnnnennnnnnnnnnnennnnnnnnnennnnnnnnnnennnnennnnene 9 Analog input acquisition Modes eeccoccrncasonninpsici ncan corner sseesesnseepeage ssaevbebins saps ssescbesseupespessasensbiouneabessensavaseypcopesssens 9 Software paced mode misc sa Hardware paced mode External Components ark eit a kretset ee ied ei 9 Screw terminals USB connector Activity LED Status LED Luse rare Se iset nei sh nerea eN E E AS EE sd onbaspie eneste sh codoeasces debustdevigastet ses os AMAlO BIN PUb ene LEE A A dt tin Analog outputsstsaakuatatkatraee een ee External clock VO ee Digital 1 O Counter input Timer output Trigger input Power output Ground ii AA A A A A eds Chapter 4 SPOCITICATIONS ii dren T 16 A pie EET eske dnsdde sd 16 Analog output init Ser Re et 18 Digita
12. USB 1208HS 4A0 High Speed Analog Input and Digital I O User s Guide Document Revision 4 July 2014 Va FA MEASUREMENT Copyright 2014 AY ta COMPUTING Your new Measurement Computing product comes with a fantastic extra Management committed to your satisfaction Thank you for choosing a Measurement Computing product and congratulations You own the finest and you can now enjoy the protection of the most comprehensive warranties and unmatched phone tech support It s the embodiment of our mission To provide data acquisition hardware and software that will save time and save money Simple installations minimize the time between setting up your system and actually making measurements We offer quick and simple access to outstanding live FREE technical support to help integrate MCC products into a DAQ system Limited Lifetime Warranty Most MCC products are covered by a limited lifetime warranty against defects in materials or workmanship for the life of the product to the original purchaser unless otherwise noted Any products found to be defective in material or workmanship will be repaired replaced with same or similar device or refunded at MCC s discretion For specific information please refer to the terms and conditions of sale Harsh Environment Program Any Measurement Computing product that is damaged due to misuse or any reason may be eligible for replacement with the same or similar device for 50 of th
13. e current list price I O boards face some harsh environments some harsher than the boards are designed to withstand Contact MCC to determine your products eligibility for this program 30 Day Money Back Guarantee Any Measurement Computing Corporation product may be returned within 30 days of purchase for a full refund of the price paid for the product being returned If you are not satisfied or chose the wrong product by mistake you do not have to keep it These warranties are in lieu of all other warranties expressed or implied including any implied warranty of merchantability or fitness for a particular application The remedies provided herein are the buyer s sole and exclusive remedies Neither Measurement Computing Corporation nor its employees shall be liable for any direct or indirect special incidental or consequential damage arising from the use of its products even if Measurement Computing Corporation has been notified in advance of the possibility of such damages Trademark and Copyright Information Measurement Computing Corporation InstaCal Universal Library and the Measurement Computing logo are either trademarks or registered trademarks of Measurement Computing Corporation Refer to the Copyrights amp Trademarks section on mecdaq com legal for more information about Measurement Computing trademarks Other product and company names mentioned herein are trademarks or trade names of their respective companies O 2014 Meas
14. eased offsets when exposed to high RF fields gt 1V m or transients Declaration of Conformity based on tests conducted by Chomerics Test Services Woburn MA 01801 USA in December 2008 Test records are outlined in Chomerics Test Report EMI5217 08 We hereby declare that the equipment specified conforms to the above Directives and Standards 7 l ax J L Carl Haapaoja Director of Quality Assurance Measurement Computing Corporation 10 Commerce Way Suite 1008 Norton Massachusetts 02766 508 946 5100 Fax 508 946 9500 E mail info Qmccdag com www mccdag com
15. efault Figure 10 Pull down and pull up configurations 1 Replace the top section of the case and then fasten it to the bottom section with the four screws For more information on digital signal connections For general information regarding digital signal connections and digital I O techniques refer to the Guide to DAQ Signal Connections available on our web site at www mccdaq com signals signals pdf Counter input CTRO and CTR1 provide connections to each 32 bit counter input channel Each counter can count frequencies of up to 20 MHz Timer output Use the TMR terminal to connect to the pulse width modulation PWM timer output You can set the following timer output parameters through software pulse frequency duty cycle pulse width divided by the pulse period number of pulses to generate time delay before starting the timer output after it s enabled resting state of the output idle high or idle low The timer can generate a pulse output with a programmable frequency range of 0 00931 Hz up to 20 MHz 14 USB 1208HS 4AO User s Guide Functional Details Both the period and time delay ranges are 50 ns to 107 4 seconds 5 V Timer generator TMR terminal Figure 11 USB 1208HS 4AO PWM timer channel Trigger input The TRIG connection is an external digital trigger input The trigger mode is software selectable for Level sensitive or edge sensitive Rising or falling edge
16. han AOCKO Ext clock output AO chan TRIG Trigger input GND Digital ground CTRO Counter input 0 CTR1 Counter input 1 TMR Timer output GND Digital ground Empty 5V Power output GND Digital gound DIO8 Digital I O bit 8 DIO9 Digital I O bit 9 DIO10 Digital I O bit 10 DIO11 Digital 1 O bit 11 DIO12 Digital I O bit 12 DIO13 Digital I O bit 13 DIO14 Digital I O bit 14 DIO15 Digital I O bit 15 GND Digital gound 1 2 3 4 5 6 7 8 9 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 2000000000000000 200000000000 200000000000 Figure 3 Differential mode pinout The single ended mode pinout is shown in Figure 4 Analog input 0 AINO Analog ground AGND Analog input 1 AIN1 Analog ground AGND Analog input 2 AIN2 Analog ground AGND Analog input 3 AIN3 Analog ground AGND Analog input 4 AIN4 Analog ground AGND Analog input 5 AINS Analog ground AGND Analog input 6 AIN6 Analog ground AGND Analog input 7 AIN7 Analog ground AGND Empty Power output 5V Digital ground GND Digital I O bit 0 DIOO Digital 1 O bit 1 DIO1 Digital 1 O bit 2 DIO2 Digital 1 O bit 3 DIO3 Digital I O bit 4 DIO4 Digital 1 O bit 5 DIOS Digital 1 O bit 6 DIO6 Digital 1 O bit 7 DIO7 Digital ground GND AOUTO Analog output 0 AOUT1 Analog output 1 AGND Analog ground AOUT2 Analog output 2 AOUT3 Analog output 3 AGND Analog ground AICKI Ext clock input Al chan AICKO Ext clock output Al chan AOCKI Ext clock input AO chan AOCKO Ext cloc
17. ing the following features Eight 13 bit single ended SE or four differential DIFF analog inputs Four 12 bit analog outputs One external clock input and one external output for analog inputs One external clock input and one external output for analog outputs One digital trigger input 16 individually configurable digital I O channels Two 32 bit counter inputs One 32 bit timer output Screw terminals for field wiring connections The device is powered by the 5 volt USB supply from your computer and requires no external power The USB 1208HS 4A0 is a USB 2 0 high speed device supported under popular Microsoft Windows operating systems The USB 1208HS 4A0 is compatible with both USB 1 1 and USB 2 0 ports although the speed of the module maybe limited when using USB 1 1 ports Functional block diagram USB 1208HS 4A0 functions are illustrated in Figure 1 ia FPGA 13 bit 1MS 8 channel A D x8 SPI 2 5625 V Ref eference Crystal oscillator lt q Con a 5125 Reference S Con Clock SPI Data Bus Microcontroller with fr USB 2 0 high speed D D USB T 12 bit dual D A interface A on eds FIFO Bus EL ALA i Vi 5V gt on sus SV a e ll ENABLEs 33V Always on Trigger A D Clock In A D Clock Out 16 5V D A Clock In D A Clock Out 16 5V power Counter In 0 1 2V supplies Counter In 1 3 3V Timer Out 5V x16 DIO Bitwise Protection programmable DIO
18. ions this document is available on our web site at www mccdag com signals signals pdf Analog output You can connect up to four analog output connections to screw terminals AOUTO to AOUT3 Refer to Figure 4 and Figure 3 on page 10 for the location of these pins Each channel can be software paced at rates up to 5 000 updates per second system dependent or hardware paced at rates up to I MS s Each analog output on the USB 1208HS 4A0 has a fixed 10 V output range The outputs default to 0 V at power up External clock I O The USB 1208HS 4A0 device provides one external clock input AICKI and one external clock output AICKO for analog inputs and one external clock input AOCKI and one external clock output AOCKO for analog outputs 12 USB 1208HS 4AO User s Guide Functional Details You can connect an external clock signal to AICKI and or AOCKI When using an external clock AICKO outputs the pulse generated from AOCKI and AOCKO outputs the pulse generated from AOCKI When using the internal clock AICKO outputs the ADC scan clock and AOCKO outputs the DAC scan clock Digital I O You can connect up to 16 digital I O lines to screw terminals DIOO through DIO15 The terminals have 47 kQ resistors that you can configure for pull up or down using an internal jumper The default configuration is pull down You can use the digital I O terminals to detect the state of any TTL level input Refer to the sche
19. k output AO chan TRIG Trigger input GND Digital ground CTRO Counter input 0 CTR1 Counter input 1 TMR Timer output GND Digital ground Empty 5V Power output GND Digital gound DIO8 Digital I O bit 8 DIO9 Digital I O bit 9 DIO10 Digital I O bit 10 DIO11 Digital I O bit 11 DIO12 Digital I O bit 12 DIO13 Digital I O bit 13 DIO14 Digital I O bit 14 DIQ15 Digital I O bit 15 GND Digital gound 2000000000000000 2000000000000000 8 8 8 8 8 8 8 8 8 8 8 200000000000 Figure 4 Single ended mode pinout Use 16 AWG to 30 AWG for signal connections 10 USB 1208HS 4AO User s Guide Functional Details USB connector The USB connector provides 5 V power and communication No external power supply is required Activity LED The Activity LED indicates the communication status of the USB 1208HS 4A0 It blinks when data is transferred and is off when the device is not communicating This LED uses up to 10 mA of current and cannot be disabled Status LED The Status LED turns on when the device is detected and installed on the computer Signal connections Analog input You can connect up to eight analog input connections to the screw terminals labeled AINO through AIN7 Analog signals are referenced to analog ground AGND Single ended mode requires two wires The wire carrying the signal to be measured connects to AINx The second wire connects to AGND Differential mode requires two wires plus a grou
20. l input output asisto 18 External tS resi iia 19 External cl ck INpUVOUTpUb ascii 19 COUMTETS mori a a ios ca 20 A NN 20 Min ee 20 POW sansen krenker rene 21 USB spedheanonsuynu sere tes 21 USB 1208HS 4AO User s Guide Preface About this Manual This document describes the USB 1208HS 4A0 data acquisition device and lists device specifications Conventions For more information Text presented in a box signifies additional information related to the subject matter Caution Shaded caution statements present information to help you avoid injuring yourself and others damaging your hardware or losing your data bold text Bold text is used for the names of objects on a screen such as buttons text boxes and check boxes italic text Italic text is used for the names of manuals and help topic titles and to emphasize a word or phrase Where to find more information Additional information about USB 1208HS 4A0 hardware is available on our website at www mccdaq com You can also contact Measurement Computing Corporation by phone fax or email with specific questions Knowledgebase kb mccdag com Phone 508 946 5100 and follow the instructions for reaching Tech Support Fax 508 946 9500 to the attention of Tech Support Email techsupport mccdaq com Chapter 1 Introducing the USB 1208HS 4A0 The USB 1208HS 4A0 is a high speed analog input and digital I O data acquisition device provid
21. matic in Figure 7 If you set the switch to the 5 V input DIOO reads TRUE 1 If you move the switch to GND DIOO reads FALSE 0 DIOQ LG TT 5V GND Figure 7 Schematic showing switch detection by digital channel DIOO Pull up down configuration Each of the 16 DIO bits on the USB 1208HS 4A0 has a 47 KQ pull up pull down resistor To configure these bits for either a 5 V pull up or a 0 V pull down option you must open the USB 1208HS 4A0 case to access the three pin jumper labeled W34 The pull up pull down voltage is common to all of the internal 47 kQ resistors To open the case and set the W34 jumper do the following 1 Turn over the USB 1208HS 4A0 and rest it on its top on a flat stable surface 2 Peel off the four rubber feet on the bottom of the module to access the screws 3 Remove the four screws shown in Figure 8 from the bottom of the device an se Za a 2 r k El Figure 8 Location of screws connecting bottom and top sections of case 4 Holding both the top and bottom sections of the module turn it back over rest it on the surface and carefully remove the top section of the case 5 Set the jumper to either pull up or pull down see Figure 9 and Figure 10 13 USB 1208HS 4AO User s Guide Functional Details O 2S8S06SO6000600mF9SS0S90SS6 Figure 9 Location of W34 jumper default pull down setting shown Pull down jumper Pull up jumper configuration configuration d
22. min 5 25 V max range see Note 2 Suspend mode enumeration OV 5 V output current Run mode no other output loads 265 mA max 1 325 W Fuses On USB supply 0452 750 Littelfuse 0 750A NANO2 Slo Blo Subminiature Surface Mount Fuse Spare fuse mounted in holder on PCB Note 1 This is the total current consumption for the USB 1208HS 4A0 including 5 V digital output and analog output currents if supported Note 2 Output voltage range assumes input power is within specified limits USB specifications Table 13 USB specifications Parameter Specification USB device type USB 2 0 high speed USB device compatibility USB 1 1 2 0 USB cable length 5 m 16 40 ft max USB cable type A B cable UL type AWM 2725 or equivalent min 24 AWG VBUS GND min 28 AWG D D Environmental Table 14 Environmental specifications Parameter Specification Operating temperature 0 C to 50 C range Storage temperature 40 C to 85 C range Humidity 0 to 90 non condensing 21 USB 1208HS 4AO User s Guide Specifications Mechanical Table 15 Mechanical specifications Parameter Specification Dimensions L x W x H 5 00 x 3 53 x 1 40 in 127 x 89 9 x 35 6 mm Screw terminal connector and pinout Table 16 Connector specifications
23. nd reference The wire carrying the positive portion of the differential signal to be measured connects to AINx The wire carrying the negative portion of the differential signal to be measured connects to AIN x 1 The analog ground reference wire connects to AGND The terminal configurations for single ended and differential modes are shown in the table below Channel 8 single ended channels configuration 0 4 differential channels configuration Vin Vin Vin Vin 0 AINO AGND AINO AIN1 1 AIN1 AGND AIN2 AIN3 2 AIN2 AGND AIN4 AINS 3 AIN3 AGND AIN6 AIN7 4 AIN4 AGND 5 AINS AGND 6 AIN6 AGND 7 AIN7 AGND In single ended mode the input voltage ranges are 10 V 5 V 2 5 V 0 to 10 V In differential mode the input voltage ranges are 20 V 10 V and 5 V The voltage level on each AINx input is limited to 14 V 11 USB 1208HS 4AO User s Guide Functional Details Figure 5 depicts a voltage source connected to a USB 1208HS 4A0 configured for SE mode AGND Figure 5 Single ended measurement connection Figure 6 depicts a Wheatstone bridge signal source connected to a USB 1208HS 4A0 configured for DIFF mode AGND Figure 6 Differential measurement connection For more information on analog signal connections For more information on single ended inputs refer to the Guide to DAQ Signal Connect
24. put high voltage 4 4 V min IOH 50 uA 3 76 V min OH 24 mA Output low voltage 0 1 V max IOL 50 pA 0 44 V max IOL 24 mA Output current 24 mA max per pin refer to Power section for additional information Memory Table 11 Memory specifications Parameter Specification Data FIFO 4 KS analog input 4 kS analog output Non volatile memory 32 KB 16 KB firmware storage 16 KB calibration user data 20 USB 1208HS 4AO User s Guide Specifications Power Table 12 Power specifications Parameter Condition Specification Operating modes Bus powered USB 5 V supply Supply current Suspend mode lt 2 5 mA see Note 1 Enumeration lt 100 mA Run mode lt 500 mA Power consumption Run mode 1 175 W max 235 mA input current excluding analog and digital outputs Power available for 5 V Run mode 1 325 W max AICKO AOCKO TMR The total power consumption for all external loads must be less than this analog outputs and value and each load must meet the individual specification for the digital I O terminal Digital output power Power per output lout x 5 V calculation for example E 24 mA P 0 024 x 5 120 mW output Analog output power Power per output Iout x 16 5 V 0 78 calculation for example 3 mA P 0 003 x 16 5 0 80 63 5 mW output 5 V output power Power W Iout x 5 V calculation 5 V output voltage Run mode 4 25 V
25. rate is 1 MS s aggregate over one to eight channels You can start a continuous scan with either a software command or with an external hardware trigger event External components The USB 1208HS 4A0 has the following external components as shown in Figure 2 Screw terminal banks LED indicators USB connector 1 Screw terminal pins 1 to 28 4 Activity LED 2 Screw terminal pins 29 to 56 5 USB connector 3 Status LED Figure 2 External components USB 1208HS 4A0 User s Guide Functional Details Screw terminals The differential mode pinout is shown in Figure 3 Analog input 0 HI AINO Analog ground AGND Analog input O LO AIN1 Analog ground AGND Analog input 1 HI AINZ Analog ground AGND Analog input 1 LO AIN3 Analog ground AGND Analog input 2 HI AIN4 Analog ground AGND 10 Analog input 2LO AINS 11 Analog ground AGND 12 Analog input 3 HI AING 13 Analog ground AGND 14 Analog input 3 LO AIN7 15 Analog ground AGND 16 Empty 17 Power output 5V 18 Digital ground GND 19 Digital I O bit 0 DIOO 20 Digital 1 O bit 1 DIO1 21 Digital I O bit 2 DIO2 22 Digital VO bit 3 DIO3 23 Digital I O bit 4 DIO4 24 Digital VO bit 5 DIO5 25 Digital VO bit6 DIO6 26 Digital O bit7 DIO7 27 Digital ground GND 28 AOUTO Analog output 0 AOUT1 Analog output 1 AGND Analog ground AOUT2 Analog output 2 AOUT3 Analog output 3 AGND Analog ground AICKI Ext clock input Al chan AICKO Ext clock output Al chan AOCKI Ext clock input AO c
26. rential 8 single ended Software selectable Input configuration Multiplexed Channel gain queue 8 unique consecutive elements Software selectable range for each channel Absolute maximum input CHx IN to GND 25 V max power on voltage 12 V max power off Input impedance 35 MQ min Input bandwidth 3 dB All input ranges 2 MHz typ Input leakage current 250 nA typ Input capacitance 32 pf typ Offset error drift 5 ppm C typ Gain error drift 25 ppm C typ Maximum working voltage 20 V 14 V signal common mode 10 V 11 V 5 V 5 5 V Sample rate 1 S s to 1 MS s software programmable Sample clock source Internal A D clock or AICKI 250 kHz input signal Burst mode Software selectable burst rate lus Throughput Software paced 33 S s to 4000 S s typ system dependent Scan to PC memory 1 MS s max Resolution 13 bits A D no missing codes Differential mode 13 bits uncalibrated Single ended mode 12 bits CMRR 60hz 74 dB typ Crosstalk SE mode all ranges 250 kHz 62 dB typ input signal Differential mode all ranges 78 dB typ 16 USB 1208HS 4AO User s Guide Specifications Table 2 Calibrated absolute accuracy Range Accuracy mV 20 V DIFF mode 9 55 typ 13 18 max 10 V DIFF mode 4 59 typ 6 23 max 5 V DIFF mode 2 25 typ 2 75 max 10 V SE mode 5 10 typ 8 06 max
27. urement Computing Corporation All rights reserved No part of this publication may be reproduced stored in a retrieval system or transmitted in any form by any means electronic mechanical by photocopying recording or otherwise without the prior written permission of Measurement Computing Corporation Notice Measurement Computing Corporation does not authorize any Measurement Computing Corporation product for use in life support systems and or devices without prior written consent from Measurement Computing Corporation Life support devices systems are devices or systems that a are intended for surgical implantation into the body or b support or sustain life and whose failure to perform can be reasonably expected to result in injury Measurement Computing Corporation products are not designed with the components required and are not subject to the testing required to ensure a level of reliability suitable for the treatment and diagnosis of people HM USB 1208HS 4A0 docx 2 Table of Contents Preface About this Manual s eerosnvnnnnnvennnennnnvennnnvnnnnnnnnnvennnnvnnnnnnennnnnnnnvennnnnennnnnnnnnnnnnnnnnnnnnennnnnnnnnennnnnnnnnnennnnennner 5 CONVENTIONS se 5 Where to find more Information iii ie a E RA Ads didas 5 Chapter 1 Introducing the USB 1208HS 4A0 seensvennvennvennnennnvnnnnnnnnennnennnennnnnnnvennvnnnvnnnvnnnvenneennnennnenunenunnnunnennnene 6 Functional bloc iia acreencias 6 Chapter 2
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