Data Translation Inc.
Ultra-Accurate... By Design

DT9841E

The DT9841E is a low cost, real-time USB data acquisition module with embedded DSP for high-accuracy sound and vibration testing. This DAQ module features full data acquisition capability: two 24-bit analog inputs, two 24-bit analog outputs, 24 lines of digital I/O, and three 32-bit counter timers.

Key Features:

  • Delta-Sigma A/D and D/A converters for high-accuracy measurements at up to 200kS/s (aggregate)
  • Real-time control with embedded TMS320C6713, 300MHz DSP for stand-alone or system operation
  • Software programmable DSP
  • Flexible memory configuration: 128MB SDRAM and 2 MB Flash for autonomous operation
  • High-speed host USB 2.0 host interface (480 Mbits/seconds)
  • 500V Isolation for maximizing signal integrity
  • Software and drivers compatible with Windows XP/Vista/7
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Item Description Price* Purchase
DT9841E Real-Time DSP Module, 24-bit, 100kHz, 2 AI, 2 AO, 24 DIO, 3 C/T, 1 Tach, No Enclosure $ 2495
DT9841E-DK Developer Kit: Includes DT9841E module, EP358E accessory panel, EP344 cables, USB cable, and power supply $ 2995
Accessories
EP348 Optional +5V power supply with cable. Included with Sleek Box models. $ 240
EP354 Adapter to convert serial output to standard RS-232. $ 230
EP358E 2 channel in, 2 channel out accessory panel for DT9841E; includes 2 EP344 cables. Call 

*Prices valid for U.S. and Canada only. For international pricing, click here.

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Feature DT9841 DT9841E DT9841-VIB DT9842/2 DT9842/8
Analog Input Features

Channels

8DI

2DI

8SE

8SE

8SE

Throughput

100kHz* per channel

100kHz* per channel

100kHz* per channel

100kHz* per channel

100kHz* per channel

Resolution

24-bit

24-bit

24-bit

16-bit

16-bit

Input Range

±10V

±10V

±10V

±10V

±10V

A/D Type

Delta-Sigma with DSP

Delta-Sigma with DSP

Delta-Sigma with DSP

SAR with DSP

SAR with DSP

Analog Output Features

Channels

2

2

2

2

8

Throughput

100kHz* per channel

100kHz* per channel

100kHz* per channel

100kHz* per channel

100kHz* per channel

Resolution

24-bit

24-bit

24-bit

16-bit

16-bit

Output Range

±2.5V, ±10V

±2.5V, ±10V

±2.5V, ±10V

±10V

±10V

Special Features

Isolation

500V

500V

500V

500V

500V

Digital I/O

24*

24*

16*

24*

24*

Counter/Timer

3*

3*

3*

3*

3*

Tachometer

*

*

*

*

*

Power

+5V

+5V

+5V

+5V

+5V

Available Packaging

OEM, Sleek Box

OEM

Sleek Box

OEM, Sleek Box

OEM, Sleek Box

 

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*All functions synchronized for high speed.

Included Software:

Each DT9840 series module includes a CD containing device drivers, an API library for developing DSP programs, an API communications library for developing host programs, the DT Dynamic Signal Analyzer application, example programs, and a number of utility programs – everything you need to get up and running with a DT9840 Series module.

  • DT9840 Series DSP Library – The DT9840 Series DSP Library provides I/O and communication functions that you can call from a DSP application program on a DT9840 Series module using Code Composer Studio from Texas Instruments.
  • DT9840 Series Host Communication Library – The DT9840 Series Host Communication Library provides functions that you can call from a host application program using Microsoft Visual Studio to allow communication between the host and a DT9840 Series module.
  • DT9840 Series Download Utility – The DT9840 Series Download Utility allows you to download a DSP program (that conforms to the Code Composer Studio standard) into the SDRAM of a DT9840 Series module, run the DSP program, and perform memory and LED tests on the module.
  • DT9840 Series Flash Programmer Utility – The DT9840 Series Flash Programmer Utility allows you to download a DSP program (that conforms to the Code Composer Studio standard) into the flash memory of a DT9840 Series module.
  • Example programs are provided that illustrate how to call the functions in the DT9840 Series Host Communication Library and DT9840 Series DSP Library.
  • DT9841 Calibration Utility – The DT9841 Calibration Utility allows you to calibrate the analog I/O circuitry of a DT9841 or DT9841E module.

Additional Software:

  • The free Dynamic Signal Analyzer application allows you to perform dynamic signal processing operations on a DT9840 Series module without programming.
  • Measure Foundry allows you to stream data from the DT9840 series module without using Visual Studio or Code Composer. Measure Foundry allows you to build complex test and measurement applications easily without writing code.
EP348 EP348
Optional +5V power supply with cable. Included with Sleek Box enclosure.
EP354 EP354
Adapter to convert serial output to standard RS-232.
EP358E EP358E
Accessory panel for DT9841E. Features BNC connections for analog input and output channels. Includes two EP344 cables.
Application Notes and White Papers
- Embedded Signal Processing System: Build or Buy?
Engineers confronting the need to add real-time signal processing capabilities to a product will consider the build-to-buy question.
- Real-Time DSP Data Acquisition for High-Speed Host Transfer
The architecture of a data acquisition system utilizing the processing capability of a DSP chip has existed for many years. The ability to do this in a local loop in real time is available today with chips such as the Texas Instrument floating-point TMS320C6713.