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ADU100 USB Data acquisition interface
ISOLATED - 16-bit with PGA and relay output

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ADU100 USB Data Acquisition Interface  ( Dimensions, 5.1" X 2.8  X 1.0" )

The ADU100 features 3, ISOLATED 16-bit  analog inputs, 4 digital I/O lines, one 5 AMP relay contact output, four 16 bit event counters, and an auxiliary RS232 port. Two of the analog input lines can be programmed in 20mV to +/-2.5V ranges via an internal PGA. The third analog input is a high-level input with programmable ranges of 0-5, +/-5, 0-10, and +/-10 VDC.  Two reference outputs are available ( 2.5000V and 5.00V ) to allow direct connection of strain gauge type sensors. This low-cost data acquisition  interface is easy to use with VB, and Visual C++ via standard HID drivers included with Windows 98,2000,XP.  A mini-driver ( DLL )* is also provided allowing control using standard ASCII commands using familiar readfile , writefile commands. The ADU100 USB data acquisition interface also features an auxillary RS232 port for connecting Legacy RS232 devices. ( ADR Products ) The ADU100 includes a 10' USB cable and is available as a PCB or in an enclosure with several mounting options.The variety of I/O on this product make it unique and well suited for integration into a variety of instruments.

Click here to download USER MANUAL V1.2   for ADU100 ( PDF 886K )

Click here to view sample connection diagrams for various transducers.

* View AduHid.dll  on-line software develoment kit ( SDK ) on our Programming page.

Key Benefits, ADU100  USB Data Acquisition Interface

  • 3, ISOLATED ( 3000V ) 16-Bit Analog Inputs.
  • Programmable PGA gives full scale input  ranges from 0-19mV to +/-10V
  • Low noise Sigma Delta A/D
  • Internal self-calibration function for true 16-bit resolution
  • 2.5000V and 5.00V reference outputs to allow direct connection of strain gauges.
  • High quality Aromat PA-series relay offers superior performance.
  • 4 Digital I/O Lines
  • Programmble pull-up resistors on digital I/O lines for use with dry contacts.
  • 1, N. O. relay contact output rated  5.0A @ 120VAC, 5.0A @ 30VDC
  • Programmable watchdog functions.
  • Bi-colour LED status indicator.
  • Self-resetting, fused 5V output
  • Auxillary RS232 port for connecting legacy RS232 devices. ( ADR series )
  • High quality cage-clamp type terminal blocks.
  • Uses standard HID drivers included with Windows 98SE,2000,XP
  • Mini-driver ( DLL ) provided for use with VB,VC, LabVIEW and TestPoint
  • Programming examples and sample code included for VB, Visual C++
  • Four, 16-bit event counters ( one high speed capable )
  • Programmable debounce setting for event counters.
  • Bus Powered, No external power supply required.
  • Meets IEC61000-4-2 ESD protection for USB port.
  • Available in enclosure or as PCB only.

Specifications, ADU100  USB Data Acquisition Interface

Supply Voltage NONE ( Bus Powered )
Supply Current 180mA Typical 200mA Max
Operating Temperature 0-50C
Low Level Analog Inputs ( 2)
Resolution 16 Bits
Type 2 Single Ended or 1 Differential
Ranges (Programmable ) 0-2.5 , 0-1.25V, 0-.625V, 0-.3125V,   0-156.25mV, 0- 78.125mV, 0- 39.0625mV, 0-19.53125mV

+/-2.5V, +/-1.25V, +/-.625V,+/-.3125V, +/-156.25mV, +/-78.125mV, +/-39.0625mV    +/-19.53125mV

Note that special considerations must be taken when operating AN0 and AN1 with bipolar input ranges. See sample connection diagrams for more information.

Input Z 100K ohm
Common Mode Range +/- 5VDC
Linearity .0003% Typical
Noise ( peak to peak ) 4.7uV ( GAIN =1 ) 0.63uV ( GAIN = 128 )
Offset Error Equal to noise level when calibrated
Gain Error Equal to noise level when calibrated
Isolation 3000V
High Level Analog Input ( 1)
Resolution 16 Bits
Type Single Ended
Ranges ( Programmable ) 0-5VDC,0-10VDC,+/-5VDC,+/-10VDC
Common Mode Range -11 to +12 VDC
Linearity .0003% Typical
Noise ( peak to peak ) 35uV MAX ( 10 V Range ) 20uV MAX ( 5V Range)
Offset Error +/- 10mV MAX
Gain Error 0.2% MAX,  Typical 0.05%
Input Z 27K ohm
Isolation 3000V
Analog Sample Rates 50 s/s/Ch-1Ch, 9s/s/Ch-2Ch, 6s/s/Ch-3Ch
Relay Output ( 1)
Type Normally Open ( TYPE A )
AC Ratings 5.0 Amps @ 120VAC MAX
DC Ratings 5.0 Amps @ 30VDC MAX
Digital I/O (4)  ( TTL )
Vin HIGH  ( MIN )  2.0VDC
Vin LOW ( MAX ) 0.7 VDC
Vin LOW ( MIN )  0VDC
Event Counter ( 4 )
Resolution 16-bit
Input Type TTL or Dry Contact
Max Frequency 5Khz ( 250Khz on PA0 only)
Reference Outputs ( 2 )
Output 1 2.5000V @ 10mAMax
Output 2 5.00V @  100mA Max
Special Functions
RS232 Port Auxiliary  RS232 port  allows connection to ASCII based serial interfaces. Programmable baud rate from 9600 to 56K.
Mounting Options Desktop, Velcro, Flange, DIN Rail

Pricing,  ADU100  USB Data Acquisition Interface ( Includes 10' USB cable )

Description $US
ADU100 $199.00
ADU100 QTY 10+ $189.00


Specify mounting option when ordering. Options include the following; DESKTOP (Standard ) -VELCRO,  -FLANGE or -DIN .
See Mounting Options for details.

Example 1:  ADU200-DINExample : 2    ADU218-FLANGE

ADU products do not ship with drivers on floppy or CD-ROM. Drivers,   including complete SDK can be downloaded or viewed on-line in the Programming Section.

Pricing indicated is for ADU100 USB interface in enclosure and includes rubber feet for desktop use. Contact Ontrak for available options.

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Contact Information
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Ontrak Control Systems Inc.
764 Notre Dame Ave., Unit #1
Tel: (705) 671-2652 General Information Sales or Support
Sudbury,Ontario Fax:(705) 671-6127
CANADA P3A 2T2    
Next-Day shipping anywhere in Continental U.S. via Fed-Ex
Copyright 2012 ONTRAK CONTROL SYSTEMS 764 Notre Dame Ave, Unit #1 , Sudbury, Ontario, CANADA P3A 2T2  
"Quality serial Data Acquisition Interfaces"           PH. (705) 671-2652 FAX (705) 671-6127