DT9800 Series

Isolated, Multifunction USB Data
Acquisition Modules
Overview
The DT9800 Series is a family of low-cost, isolated,
multifunction USB data acquisition modules. All DT9800
Series modules feature 16 single-ended (SE)/8 differential(DIFF) inputs with 12- or 16-bit resolution, up to 100 kS/s
aggregate sample rate, 16 digital I/O lines, 2 counter/timers, and optional 12- or 16-bit analog outputs.

Key Features• ±500 V galvanic isolation prevents ground loops,
maximizes analog signal integrity, and protects thecomputer• Runs on USB power ideal for portable applications –no external power supply needed• 16 SE/8 DIFF analog input channels, 12- or 16-bit
resolution• Fast sampling: up to 100 kS/s sample rate
• Analog output channels: optional 12- or 16-bit• 16 DIO, two 16-bit counter/timers• Flexible acquisition modes for input operations:
single value, continuous, and triggered scan
• Includes free QuickDAQ software to get up andrunning quickly.

The DT9800 Series is a family of USB function modules fordata acquisition.

±500 V Isolation Protects Your Data
Computers are susceptible to ground-spikes through any
external port. These spikes can cause system crashes andmay even cause permanent damage to the computer.
The DT9800 Series modules feature 500 Volts of galvanic
isolation to protect the computer from ground-spikes andto ensure a reliable stream of data.

Supported Operating Systems• Windows® 10/8/7/Vista®/XP 32/64-bit

Flexible Acquisition Modes Using The Input
Channel-Gain List

Analog Inputs
All DT9800 Series modules support 16 single-ended
or pseudo-differential analog input channels or eight
differential analog input channels. Software selectable
gain settings of 1,2,4, and 8 provide effective input
ranges of ±1.25 V, ±2.5 V, ±5 V, and ±10 V. On the DT9801
and DT9801, you can specify a unipolar range of 0 – 10 V.

The DT9800 Series module can acquire data from one ormore analog input channels using an input channel-gain
list. A 32-location channel-gain list allows great flexibility
in configuring channels, sample rates, and gains. For
example, it permits sampling non-sequential analog input
channels, analog input channels with different gains, anddigital inputs at the A/D sample rate.

Features SummaryAnalog Inputs

Analog Outputs
SampleRate

Ch.

Digital I/O

Resolution

OutputRange

Update
Rate

I/O
Lines

Counter/
Timer

ModuleChannels

Resolution

Input Range

DT9801

16 SE/
8 DIFF

12 bits±1.25 V, ±2.5 V, ±5 V, ±10 V
0-1.25 V, 0-2.5 V, 0-5 V, 0-10 V

100 kS/s

————

162

DT980216 SE/
8 DIFF

12 bits±1.25 V, ±2.5 V, ±5 V, ±10 V
0-1.25 V, 0-2.5 V, 0-5 V, 0-10 V

100 kS/s

212 bits±5 V, ±10 V
0-5 V, 0-10 V

50 S/s162DT9803

16 SE/8 DIFF16 bits

±1.25 V, ±2.5 V, ±5 V, ±10 V

100 kS/s————

162DT9804

16 SE/8 DIFF

16 bits±1.25 V, ±2.5 V, ±5 V, ±10 V

100 kS/s

216 bits±10 V

50 S/s162(508) 946-5100

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Digital I/O

For each entry in the input channel-gain list, specify thechannel to sample and the gain to apply to that channel.
Channels in an input channel-gain list are sampled inorder from the first entry to the last entry in the list.
Channel numbering is zero-based; that is, the first entry
in the input channel-gain list is entry 0, the second entry
is entry 1, and so on.

All DT9800 Series modules feature 16 digital I/O lines.
These lines are divided into the following 8-bit ports:
Port A, input and Port B, output. You can also read thestatus of Port A at rates as high as the maximum speedof the A/D by including the digital input lines of Port A
as a channel in the analog channel-gain list. This dynamic
digital input feature allows you to “time stamp” thedigital inputs in relation to the analog inputs. In thismode, all 8 digital input lines of Port A are read as oneword.

The DT9800 Series modules provide two ways to cycle
through the channel-gain list:• Continuous scan mode — Choose this mode toaccurately control the period between conversionsof individual channels in the channel-gain list.
• Triggered scan mode — Choose this mode toaccurately control both the period between
conversions of individual channels in the channelgain list and the period between each scan. Thismode emulates a sample-and-hold function and isuseful when synchronizing or controlling external
equipment, or when acquiring a buffer of data oneach trigger or retrigger.

The digital outputs have sufficient current capability todrive external solid-state relay modules (sink 12 mA andsource 1 mA). If you apply +5 V to the +5 V outputs,
the digital outputs maintain their previous state if thecomputer goes down or if the USB cable is unplugged.
On enumeration, the module senses +5 V and does notreset the digital outputs.

User Counter/Timers

Triggers

Two 16-bit counter/timers are supported by all DT9800
Series modules. The counters are numbered 0 and 1.
Each counter accepts a clock input signal and gate input
signal and outputs a clock output signal (also called apulse output signal). DT9800 Series modules support
the following counter/timer operation modes: Eventcounting, Frequency measurement, Rate generation,
One-shot, and Repetitive one-shot. You can cascade twocounters internally through software or cascade morethan two counters externally on the user connections.
You can also set the duty cycle, frequency, and output
polarity of the output pulse from the user counter/timers.

A trigger is an event that occurs based on a specified setof conditions. The DT9800 Series module supports thefollowing trigger sources:• Software trigger — A software trigger event occurs
when you start the analog input operation (thecomputer issues a write to the module to begin
conversions). Using software, specify the trigger
source as a software trigger.
• External trigger — An external digital trigger event
occurs when the DT9800 Series module detects
a rising edge on the Ext A/D Trigger input signalconnector. The trigger signal is TTL-compatible.
Using software, specify the trigger source as anexternal, positive, digital (TTL) trigger.

USB 2.0 Compatibility
The DT9800 Series modules are fully 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 isrecommended that you use the modules with a USB 2.0
port. The DT9800 Series can be used with a USB 1.1 port,
but at USB 1.1 performance. The DT9800 Series modules
are USB powered – no external power supply needed.

Analog Output Channels
The DT9802 and DT9804 modules support two DC-levelanalog output channels (DAC0 and DAC1). Within eachDAC, the digital data is double-buffered to prevent
spurious outputs, then output as an analog signal. BothDACs power up to a value of 0 V ±10 mV. Resetting
the module does not clear the values in the DACs. TheDT9800 Series modules can perform single-value analog
output operations only. Use software to specify therange, gain, and analog output channel, and then output
the data from the specified channel. You cannot specify aclock source, trigger source, or buffer. Note: You cannot
perform a single-value analog output operation while
the A/D subsystem is running. The settling time for each
DAC is 50 μs (20 V steps). Single-value operations stop
automatically when finished; you cannot stop a singlevalue operation.

(508) 946-5100

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DT9800 Series Block Diagram(508) 946-5100

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QuickDAQ
QuickDAQ allows you to acquire and display from all
Data Translation USB and Ethernet data acquisition
devices that support analog input streaming. Combine
QuickDAQ with Data Translation hardware to acquiredata, record data to disk, display the results in both aplot and digital display, and read a recorded data file.
Be productive right out of the box with this powerfuldata logging software. Data can be exported to otherapplications like Microsoft Excel® and The Mathworks
MATLAB® for more advanced analysis. Two additional
options can be purchased to add FFT analysis capabilities
to the base package.

QuickDAQ ships free-of-charge and allows you to get up andrunning quickly.

Key Features

Other Software Options• QuickDAQ Base Package (Free)There are many software choices available for application
development, from ready-to-measure applications toprogramming environments.

oo Ready-to-measure application software
oo Configure, acquire, log, display, and analyze yourdata
oo Customize many aspects of the acquisition,

The following software is available for use with a DT9800
Series module and is provided on the Data Acquisition
Omni CD:

display, and recording functions to suit yourneeds• FFT Analysis Option (License Required)oo Includes all the features of the QuickDAQ BasePackage
oo Perform single-channel FFT operations including:◊ Auto Spectrum◊ Spectrum◊ Power Spectral Density
oo Configure and view dynamic performancestatistics
oo Supports Hanning, Hamming, Bartlett, Blackman,Blackman Harris, and Flat Top response windows• Advanced FFT Analysis Option (License Required)oo Includes all the features of the QuickDAQ Base
Package and FFT Analysis Package
oo Perform 2-channel FFT operations including:◊ FRF◊ Cross-Spectrum◊ Cross Power Spectral Density◊ Coherence◊ Coherent Output Poweroo Supports real, imaginary, and Nyquist display
functionsoo Additional FFT analysis functions supported:Exponential, Force, Cosiner Taperoo Save data to .uff file format(508) 946-5100• Device Driver –The device driver allows you to use
a DT9800 Series module with any of the supported
software packages or utilities.
• Calibration Utility – This utility allows you tocalibrate features of a DT9800 Series module.
• Quick DataAcq application – The Quick DataAcq
application provides a quick way to get up andrunning. Using this application, verify key featuresof the module, display data on the screen, and savedata to disk.
• DT-Open Layers® for .NET Class Library – Use thisclass library if you want to use Visual C#® or Visual
Basic® for .NET to develop application software
using Visual Studio® 2003-2012; the class librarycomplies with the DT-Open Layers standard.
• DataAcq SDK – Use the DataAcq SDK to use Visual
Studio 6.0 and Microsoft® C or C++ to develop
application software using Windows 10/8/7/Vista/
XP 32/64-bit; the DataAcq SDK complies with theDT-Open Layers standard.
• DAQ Adaptor for MATLAB – Data Translation’s
DAQ Adaptor provides an interface between theMATLAB® Data Acquisition (DAQ) toolbox fromThe MathWorks™ and Data Translation’s DT-Open
Layers architecture.
• LV-Link – Data Translation’s LV-Link is a library ofVIs that enable LabVIEW™ programmers to accessthe data acquisition features of DT-Open Layers
compliant USB and PCI devices.

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Cross-Series Compatibility

Ordering Summary

Virtually all Data Translation data acquisition modules are compatible
with the DT-Open Layers® software standard. This means any application
developed with one of Data Translation’s software products can easily beupgrade to a new Data Translation module with little to no reprogrammingneeded.

HARDWARE• DT9801 — USB function module with12-bit, 100 kS/s analog inputs• DT9802 — USB function module with
12-bit, 100 kS/s analog inputs and two (2)12-bit analog outputs• DT9803 — USB function module with
16-bit, 100 kS/s analog inputs• DT9804 — USB function module with
16-bit, 100 kS/s analog inputs and two (2)16-bit analog outputs
ACCESSORIES:• DIN Rail Kit — Kit for mounting modules towalls, cabinets, or machinery.
FREE SOFTWARE• QuickDAQ• DAQ Adaptor for MATLAB — Access theanalysis and visualization tools of MATLAB®.
• LV-Link — Access the power of Data
Translation boards through LabVIEW™.
OPTIONAL SOFTWARE• QuickDAQ FFT Analysis Option (LicenseRequired)• QuickDAQ Advanced FFT Analysis Option(License Required)(508) 946-5100		
DT9800-Series-Datasheet		

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June 2017. Rev 7© Measurement Computing Corporation