DT9862 Datasheet - Fabrimex Systems AG
Contents
1. Maximum Sampling Frequencies and Data Rates to the Host for Various Channel List Configurations Input Channel List aba Maximum Data Configuration Frequency Rate to Host Burst Sampling 2 analog 10 MHz 28 57 MB s input channels 1 analog input channel 10 MHz 20MB s either channel 0 or channel 1 2 analog input channels 5 MHz 28 57MB s 2 analog in channels 0 96 MHz 25MB s digital in 2 counter timers 3 quad decoders 1 Both channels captured in FIFO at 10 MHz Max acquire time for 2 analog channels is 3 2768mSec Sample rate formula sample rate x number of channels 1 x 65536 This is a subset of continuous acquire the number of samples is less than or equal to the size of the input FIFO 2 Rates as high as 7 143 MHz have been attained with an optimized system 3 Sample rate below 1 MHz can reduce accuracy For the complete table of Maximum Sampling Frequencies and Streaming Data Rates to the Host for Various Channel List Configurations see Appendix E in the DT9862 User s Manual High Speed Analog Input Channels The DT9862 modules support two single ended analog inputs Each channel features its own 16 bit A D converter with sampling rates up to 10 MSamples s Using a DT9862 module data can be acquired from a single analog input channel or from both analog input channels using the analog input channel list Using software specify the channels to sample Up to 13 entries can be made in the channel list f2. pin connectors that connect the STP78 screw terminal panel to the DT9862 m STP78 Screw terminal panel for connecting digital signals to the DT9862 SOFTWARE The following software is available for purchase separately m quickDAQ SP8501 CD High performance ready to run application that lets you acquire plot analyze and save data to disk at up to 2 MHz per channel FREE SOFTWARE The following software is available for free download from our website DAQ Adaptor for MATLAB Access the analyzation and visualization tools of MATLAB m LV Link Access the power of Data Translation boards through LabVIEW Copyright 2011 Data Translation Inc All rights reserved All trademarks are the property of their respective holders Prices availability and specifications are subject to change without notice WWW DATATRANSLATION COM US Canapa 800 525 8528 Europe Asia 49 0 7142 9531 0 DATA TRANSLATION
3. LTC1821 18cGw N6673 9 Screw on SMA Connectors for All Analog RN6 RN7 RN8 RNY Input Output Timing and Trigger Control Input FIFO Holds 64K samples Output FIFO Holds 128K samples Board Dimensions 7 85 199 34mm W 9 18 233 17mm L 0 85 21 59mm H iit uka 7 SAE 1 Wilkas U54 7 1008 oe A LTC1821 18CGw i N6673 3 a F AMNI a ct 2 Fast Settling Deglitched 16 bit D A Channels 2MHz 500nS settling with small step of lt 100mV 5 00kHz 2uS throughput for full scale 2 5V lnpolW Z986 LG u1Jo uue1BeId X209 anbi4 3N20 295U919 5 TBB nding 490 99 VORKE si 66ul Yoopnding 9 e651 5v0xa Jabbujynduy s4909 420199033 t Yoorginduy e651 90vxa yojon M50 595u818J9 BueuSuodniuaqu uj yoojgynduy ebia K Toses uq 91 l ova Ionuoo hnoboeuy q 9 yndino Phosas sJ WIL 33o 9ndul payunog ommon noBojeuy bade umoq dn f weon I l 35o 21ndino Wq ze x Z Jalueg uonejos peoisesn l sno uelnus j J3 BBiHLindinO Leg UOHE OS A00S yPojQeousiajay siepooeq Eee inj jpeno Ionuoo all nboy yaojgynduj q 94 lt k TujBojeuy gt l 35o1 3ndul Elie q 94 Kip ouiBojeuy BBuIIndul vey u La SOS US J p ds uBi H o72asn aBuey suoydnseyuy US Canapa 800 525 8528 Europe Asia 49 0 7142 95310 WWW DATATRANSLATION COM Input Sample Clock Sources The DT9862 series
4. Compatibility Virtually all Data Translation data acquisition modules are compatible with the DT Open Layers for NET Class Library This means that if your application was developed with one of Data Translation s software products you can easily upgrade to a new Data Translation board Little or no reprogramming is needed Documentation Each data acquisition module includes a comprehensive user s manual Manuals are provided in electronic PDF format on the Data Acquisition Omni CD provided with the module Technical Support Application engineers are available during normal business hours to discuss your application requirements Extensive product information including drivers example code pinouts a searchable Knowledge Base and much more is available 24 hours a day on our web site at www datatranslation com You can also request complimentary support via email or fax at any time For more information about the DT9862 please visit http www datatranslation com info DT9862 Ordering Information All Data Translation hardware products are covered by a 1 year warranty For pricing information please visit our website or contact your local reseller HARDWARE DT9862 2 2 DT9862 2 0 DT9862 2 2 OEM DT9862 2 0 OEM DT9862S 2 0 ACCESSORIES m EP361 for OEM versions 5V power supply and cable m EP379 Dual Rack mount kit m EP380 Single Rack mount kit m EP390 1 52 meter cable with two 78
5. module supports one digital input port consisting of 16 digital input lines and one digital output port consisting of 16 digital output lines The resolution is fixed at 16 bits You can read all 16 digital input lines or write all 16 digital output lines with a single value digital I O operation In addition you can specify the digital input port in an analog input channel list to perform a continuous digital input operation or you can specify the digital output port in an output channel list to perform a continuous digital output operation A digital line is high if its value is 1 a digital line is low if its value is 0 On power up or reset a low value 0 is output from each of the digital output lines WWW DATATRANSLATION COM US Canapa 800 525 8528 Europe Asia 49 0 7142 9531 0 The DT9862 series modules allow you to program the first eight digital input lines to perform interrupt on change operations Counter Timer Channels The DT9862 series module provides two 32 bit counter timers Each counter accepts a clock input signal and gate input signal and outputs a pulse pulse output signal Using software one or more of the counter timers can be specified in the analog input channel list The following clock sources are available for the counter timers m Internal C T clock Through software specify the clock source as internal and specify the frequency at which to pace the operation this is the frequency of the Co
6. DT9862 and DT9862S 10MHz High Speed Isolated Simultaneous USB Data Acquisition Module The DT9862 and DT9862S are high speed multifunction data acquisition DAQ modules for the USB bus The DT9862 and DT9862S feature simultaneous analog inputs deglitched waveform analog outputs 32 digital input output lines 2 counter timers and 3 quadrature decoders All subsystems can be simultaneously triggered internally or externally The data can then be streamed synchronously to host memory This can be done via external trigger or by the internal clock of the module The synchronous operation allows all I O data to be processed and correlated for all inputs and outputs This is very valuable in determining the response across a device under test DUT to stimuli at the same exact instant Key Features Throughput rate up to 10 MSamples s m The DT9862 provides a bandwidth of 10 MHz The DT9862S provides a bandwidth of 300 MHz typical which allows under sampling m Two single ended simultaneous analog input channels Simultaneous operation of analog input analog output digital I O and counter timer subsystems 16 bit resolution Input range of 2 5V DT9862 and 1 25V DT9862S 32 digital I O lines 16 input 16 output Two 32 bit counter timer C T channels that perform event counting up down counting frequency measurement edge to edge measurement continuous edge to edge measurement continuous pulse output one sh
7. anges from 2 to 131 072 samples 128 kSamples if you are using one channel 2 to 65 536 samples 64 kSamples if you are using two channels or 2 to 43 690 samples if you are using three channels When it detects a trigger the host computer transfers the entire waveform pattern to the module and the module starts writing output values to the output channels as determined by the output channel list A single buffer is output repeatedly Use software to allocate the memory and specify the waveform pattern Gap Free Data Before you begin writing data to the output channels you must allocate and fill buffers with the appropriate data An event is returned whenever a buffer is transferred to the module This allows you to reuse that buffer and refill it with additional output data In streaming mode data is written from multiple output buffers continuously when no more buffers of data are available the operation stops The data is gap free If the size of your buffers is less than 128 kSamples and you stop the analog output operation the operation stops after the current buffer and the next buffer have been output If a single buffer is used data is written from a single output buffer continuously when all the data in the buffer has been output the module returns to the first location of the buffer and continues outputting the data This process continues indefinitely until you stop it High Speed Digital I O Lines The DT9862 series
8. dule In this mode an output channel list clock source trigger source buffer and buffer wrap mode can be specified Two continuous analog output modes are supported streaming and waveform generation mode Streaming Analog Output Use streaming analog output mode to accurately control the period between conversions of individual channels in the output channel list Use software to fill the output buffer with the values that you want to write to the DACs and to the digital output port if applicable When the module detects a trigger it starts writing the values from the output buffer to the channels specified in the output channel list The operation repeats continuously until all the data is output from the buffers To stop a streaming analog output operation you can stop sending data to the module letting the module stop when it runs out of data or perform either an orderly stop or an abrupt stop using software In an orderly stop the module finishes outputting the current buffer and then stops all subsequent triggers are ignored In an abrupt stop the module stops outputting samples immediately all subsequent triggers are ignored Waveform Generation Use waveform generation mode if you want to output a waveform repetitively Use software to fill the output buffer with the values that you want to write to the channels in the output channel list For guaranteed operation with no overrun errors use a waveform pattern that r
9. g edge external gate input Enables a counter timer operation when a low to high transition is detected on the Counter n Gate signal In software this is called a high edge gate type Note that this gate type is used for edge to edge measurement one shot and repetitive one shot mode Pulse Output Types and Duty Cycles The DT9862 series modules can output the following types of pulses from each counter timer m High to low transitions The low portion of the total pulse output period is the active portion of the counter timer clock output signal m Low to high transitions The high portion of the total pulse output period is the active portion of the counter timer pulse output signal Specify the pulse output type in software The duty cycle or pulse width indicates the percentage of the total pulse output period that is active For example a duty cycle of 50 indicates that half of the total pulse output is low and half of the total pulse output is high Specify the duty cycle in software Counter Timer Operation Modes DT9862 series modules support the following counter timer operation modes Event counting Up down counting Frequency measurement Edge to edge measurement Continuous edge to edge measurement Rate generation One shot Repetitive one shot Quadrature Decoder The Quadrature Decoder module contains three quadrature decoders which allow simultaneous decoding of three quadrature encoded inputs T
10. he quadrature decoders may be used to provide relative or absolute position or by calculating the difference between samples the rotational speed Each quadrature decoder supports A B and Index inputs The index input may be used to zero out the positional count and the A and B input relationships are used to increment or decrement the positional count Software Options Many software choices are available for application development from ready to measure applications to programming environments The following software is available for use with USB modules and is provided on the Data Acquisition Omni CD DT9862 device driver The device driver allows the use of a DT9862 module with any of the supported software packages or utilities WWW DATATRANSLATION COM US Canapa 800 525 8528 E qisang eee File Edt View Maker Sip Hep Hs Coleaar vewe ib ewer pea pea HAN A AA I Filename C guickDAQData Datafie Thef Reconing Daves alee AAA AAA ae D 10 0000 V V Y V Y 2 E AAAAAN SANANAANAAL a V IVY i Europe Asia 49 0 7142 9531 0 Recording stooped at 15 25 17 8217913 F es apus 1553 13 747 Subsampling interval 2 Figure 4 quickDAQ acquires analog data from all devices supported by DT Open Layers for NET sof
11. lly compatible with USB 2 0 and USB 1 1 USB 2 0 extends the speed of connection to up to 480 Mbps For optimal performance it is recommended that you use the series with a USB 2 0 port They can be used with a USB 1 1 port but at USB 1 1 performance 500V Galvanic Isolation Protects Your Data Computers are susceptible to ground spikes through any external port These spikes can cause system crashes and may even cause permanent damage to your computer These modules feature 500 Volts of galvanic isolation to protect your computer from ground spikes and to ensure a reliable stream of data EMI and ESD Design Criteria The DT9862 and DT9862S have been designed to perform with the lowest noise characteristics Damping resistors in series with every I O line minimize ringing and EMI and provide current limits that protect against transient signals Flexible Packaging Configurations The DT9862 is available in two packaging configurations a SMA connection box and an OEM embedded version Physical dimensions in enclosure 8 380 212 85mm W x 9 319 236 7mm L x 1 720 43 69mm H Physical dimensions without enclosure OEM 7 848 199 34mm W x 9 18 233 17mm L x 0 85 21 59 mm H The standard DT9862 module is shipped with an EP361 5V power supply and cable For the OEM version of the DT9862 module you must provide your own 5 V power source or purchase the EP361 power supply and cable from Data Translation Cross Series
12. ly filled it is returned to the application only partially filled and any subsequent triggers are ignored Input Triggers A trigger is an event that occurs based on a specified set of conditions Acquisition starts when the module detects the initial trigger event and stops when all the allocated buffers have been filled or when the operation is stopped The DT9862 series modules support the following trigger sources m Software trigger A software trigger event occurs when you Start the analog input operation the computer issues a write to the module to begin conversions Using software specify the trigger source as a software trigger External digital TTL trigger An external digital TTL trigger event occurs when the DT9862 series module detects either a rising edge positive or falling edge negative transition on the signal connected to the AD Trig connector on the module Using software specify the trigger source as an external positive digital TTL trigger or an external negative digital TTL trigger m Analog threshold trigger An analog threshold trigger event occurs when the signal on the first channel in the analog input channel list rises above a programmable threshold level Hysteresis is fixed at 50 mV Using software specify the trigger source as a positive low to high transition threshold trigger Data Transfer Before acquisition begins buffers must be allocated to hold the data An even
13. module allows the following clock sources to pace analog input operations m Internal A D clock Using software specify the clock source as internal and the clock frequency at which to pace the operation The DT9862 series modules support a minimum sampling frequency of 500 kHz and a maximum sampling frequency of 10 MHz when sampling one analog input channel 5 MHz when sampling two analog input channels or 2 MHz or less when sampling other combination of input channels m External A D clock An external A D clock to pace acquisitions at rates not available with the internal A D clock Connect an external A D clock to the AD Clk connector on the DT9862 series module Conversions start on the falling edge of the external A D clock input signal Using software specify the clock source as external The clock frequency is always equal to the frequency of the external A D sample clock input signal that you connect to the module Bandwidth of the DT9862 The DT9862 is a digitizer and provides a bandwidth of 10 MHz It does not allow for under sampling For the DT9862 specify a sampling frequency that is at least twice as fast as the input s highest frequency component Nyquist sampling theory For example to accurately sample a 1 MHz signal specify a sampling frequency of at least 2 MHz Doing so avoids an error condition called aliasing in which high frequency input components erroneously appear as lower frequencies after sampli
14. ng Bandwidth of the DT9862S The DT9862S is a sampler and provides a bandwidth of 300 MHz typical 100 MHz minimum which allows under sampling For example if you know the approximate frequency of the signal that you are trying to acquire and the signal has a very stable frequency you can use under sampling to acquire many cycles of the waveform to recreate an accurate representation of the waveform Alternatively you can use under sampling to isolate and remove a known high frequency component from a signal WWW DATATRANSLATION COM US Canapa 800 525 8528 Europe Asia 49 0 7142 9531 0 Analog Input Conversion Modes The DT9862 series modules support the following conversion modes m Single Value Mode m Continuous Scan Mode Single Value Mode Single value operations are the simplest to use Using software specify the analog input channel to sample The module acquires the data from the specified channel and returns the data immediately For a single value operation a clock source trigger source scan mode or buffer cannot be specified Single value operations stop automatically when finished Continuous Scan Mode Continuous scan mode takes full advantage of the capabilities of the DT9862 series module Use continuous scan mode to accurately control the period between successive simultaneous conversions of all channels in a channel list Specify the channel list clock source trigger source scan mode and buffe
15. or the DT9862 and DT9862S including the analog input channels digital input port two 32 bit counter timers and three 32 bit quadrature decoder inputs This feature is particularly useful to correlate the timing of analog digital counter timer and quadrature decoder events DATA TRANSLATION DT9862 2 2 OEM Board Callouts All Power Functions Synchronized eliminates beat frequencies minimizes subtle errors in sampling Full Simultaneous Operation and Triggering of all Functions analog inputs analog outputs DIO C T Quad Decoders 500V Galvanic Isolation Barrier Maximizes Signal Integrity Prevents ground loops protects _ _ u computer i i Synchronous Triggering amp Operation for Data Streaming to Host Memory via external trigger or internal clock allows exact data correlation amp response of DUT to stimuli 32 Digital 1 0 2 Counter Timers 32 bit 3 Quad Decoders 32 bit Le O s Ot RN2 RN3 Op Uli Seo eben te o tninn inti III b o TH w Joh pS Figure 2 Board Callouts 2 High Speed Parallel 16 bit A D Channels 1OMHz throughput on a single channel 5MHz throughput on both channels operating simultaneously 2 5V Inputs and Outputs Clocks Triggers provides best high frequency characteristics and impedance matching WWW DATATRANSLATION COM US Canapa 800 525 8528 Europe Asia 49 0 7142 9531 0 RN4_RNS loe p LT 1008
16. ot and repetitive one shot operations Three 32 bit quadrature decoders that can provide relative or absolute position of quadrature encoder input and calculate rotational speed m Synchronize digital counter and quadrature decoder inputs with the analog measurements 0 or 2 16 bit D A channels depending on model selected with output rate up to 2 MSamples s in small steps lt 100 mV or 500 kSamples s per channel simultaneous DACs are deglitched to prevent noise from interfering with the output signal Continuous output mode or waveform generation mode m External or internal clock source Trigger operations using a software command an analog threshold value or an external digital trigger m 500 V galvanic isolation barrier that prevents ground loops to maximize analog signal integrity and protect your computer m Available installed in a 1U 1 2 rack metal connection box with SMA connectors or as a board level OEM version that can be installed in a custom application WWW DATATRANSLATION COM US Canapa 800 525 8528 Europe Asia 49 0 7142 95310 DT9862 and DT9862S High Speed USB Data Acquisition Module High Throughput Simultaneous input DT9862 USB Data Acquisition Module Ain Cho Ain Cht D A Out Cho D A Out Ch1 DATA TRANSLATION Figure 1 The DT9862 high speed USB data acquisition module features SMA connectors to ensure signal integrity at maximum throughput rate of up to 10 MHz
17. r using software When it detects an initial trigger the module simultaneously samples all of the input channels including the digital inputs counter timers and quadrature decoders and converts the data from the analog input channels If the channel is included in the channel list the sampled data is placed in the allocated buffer s and the operation continues until the allocated buffers are filled or the operation is stopped The conversion rate is determined by the frequency of the input sample clock The sample rate which is the rate at which a single entry in the channel list is sampled is the same as the conversion rate due to the simultaneous nature of the module To select continuous scan mode use software to specify the data flow as Continuous and to specify the initial trigger the trigger source that starts the operation The following trigger types can be selected software trigger an external positive digital TTL trigger an external negative digital TTL trigger or a positive analog threshold trigger as the initial trigger Using software a continuous scan can be stopped by performing either an orderly stop or an abrupt stop In an orderly stop the module finishes acquiring the current buffer stops all subsequent acquisition and transfers the acquired data to host memory any subsequent triggers are ignored In an abrupt stop the module stops acquiring samples immediately the current buffer is not complete
18. rd DAQ Adaptor for MATLAB Data Translation s DAQ Adaptor provides an interface between the MATLAB Data Acquisition DAQ toolbox from The MathWorks and Data Translation s DT Open Layers architecture m LV Link This software is included on the Data Acquisition Omni CD Use LV Link to use the LabVIEW graphical programming language to access the capabilities of your USB module DT9862 acquiring data in quickDAQ zE File Edit View Marker Strip Help AS OR h m m Tmeopy O h amp Z amp Q Q Q lt Collector Viewer File Viewer 1460032363 1410012344 DT9ss20Q An 0 Sample Rate Per Channel Requested 10000000 00 Actual 10000000 Filename C quick AQData DataFile 1 pf m r e Figure 5 Burst sampling allows 2 channels to acquire data at 10MHz each and then compare results in relation to each other For example time periods between pulses can be measured or magnitudes compared for 2 different signals with the same triggered time frame For burst sampling data can be acquired for up to or less than the size of the input FIFO or 64K samples WWW DATATRANSLATION COM US Canapa 800 525 8528 Europe Asia 49 0 7142 9531 0 USB 2 0 Compatibility These modules are fu
19. sing software specify the clock source as external The clock frequency is always equal to the frequency of the external A D clock signal that you connect to the module Output Triggers A trigger is an event that occurs based on a specified set of conditions The DT9862 series modules support the following output trigger sources Software trigger A software trigger event occurs when you start the analog output operation Using software specify the trigger source as a software trigger m External digital TTL trigger An external digital TTL trigger event occurs when the DT9862 series module detects a rising edge or falling edge transition on the signal connected to the DAC Trig connector on the module Using software specify the trigger source as either external positive digital TTL trigger or external negative digital TTL trigger Analog Output Conversion Modes The DT9862 series modules supports the following conversion modes m Single Value Operations are the simplest to use but offer the least flexibility and efficiency Use software to specify the analog output channel to update and the value to output from that channel For a single value operation a clock source trigger source or buffer cannot be specified Single value operations stop automatically when finished you cannot stop a single value operation Continuous analog output operations take full advantage of the capabilities of the DT9862 series mo
20. t is raised whenever a buffer is filled allowing data to be moved and or processed as needed Data is written to multiple allocated input buffers continuously when no more empty buffers are available the operation stops The data is gap free High Speed High Resolution Analog Outputs The DT9862 series modules support up to two 16 bit DC level analog output channels depending on the DT9862 model selected The DACs are deglitched to prevent noise from interfering with the output signal They power up to a value of 0 V 10 mV The DT9862 series modules can output data to a single DAC or sequentially to both DACs and or the digital output port Output Clock Sources The DT9862 series modules allows the following clock sources to pace analog output operations m Internal DAC clock Using software specify the clock source as internal and the clock frequency at which to pace the operation The DT9862 series modules support a minimum sampling frequency of 0 01164 Samples s and amaximum sampling frequency of 2 MSamples s with small steps lt 100 mV or 500 kHz full scale WWW DATATRANSLATION COM US Canapa 800 525 8528 Europe Asia 49 0 7142 9531 0 m External DAC clock An external DAC clock to pace acquisitions at rates not available with the internal A D clock Connect an external D A clock to the DAC Clk connector on the DT9862 series module Conversions start on the rising edge of the external D A clock input signal U
21. tware at high speed plots it during acquisition analyzes it and or saves it to disk for later analysis m quickDAQ application An evaluation version of this NET application is included on the Data Acquisition Omni CD quickDAQ acquires analog data from all devices supported by DT Open Layers for NET software at high speed plots it during acquisition analyzes it and or saves it to disk for later analysis Note quickDAQ supports analog input functions only DT9817 and DT9835 modules are DIO only and are not supported m Quick DataAcq application The Quick DataAcq application provides a quick way to get up and running using your USB module Using this application verify key features of the module display data on the screen and save data to disk DT Open Layers for NET Class Library Use this class library if you want to use Visual C or Visual Basic for NET to develop application software for your USB module using Visual Studio 2003 2005 2008 the class library complies with the DT Open Layers standard DataAcq SDK Use the Data Acq SDK to use Visual Studio 6 0 and Microsoft C or C to develop application software for your USB module using Windows the DataAcq SDK complies with the DT Open Layers standard m DTx EZ DTx EZ provides ActiveX controls which allows access to the capabilities of your USB module using Microsoft Visual Basic or Visual C DTx EZ complies with the DT Open Layers standa
22. unter n Out signal m External C T clock An external C T clock is useful to pace counter timer operations at rates not available with the internal C T clock or to pace at uneven intervals The frequency of the external C T clock can range up to 25 MHz Counter timer operations start on the rising edge of the clock input signal Gate Types The edge or level of the Counter n Gate signal determines when a counter timer operation is enabled The DT9862 series modules support the following gate types m None A software command enables any counter timer operation immediately after execution m Logic low level external gate input Enables a counter timer operation when the Counter n Gate signal is low and disables the counter timer operation when the Counter n Gate signal is high Note that this gate type is used for event counting and rate generation modes m Logic high level external gate input Enables a counter timer operation when the Counter n Gate signal is high and disables a counter timer operation when the Counter n Gate signal is low Note that this gate type is used for event counting and rate generation modes m Falling edge external gate input Enables a counter timer operation when a high to low transition is detected on the Counter n Gate signal In software this is called a low edge gate type Note that this gate type is used for edge to edge measurement one shot and repetitive one shot mode m Risin
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