Log In

Celebrating 36 Years

Follow us on Facebook for all the latest news, updates and promotions


New Product Release

Our new line of USB analog input modules are NOW SHIPPING!

The wait is over for those of you looking for a 12 or 16-bit, 16-channel, multifunction USB analog input board.

With speeds up 500kHz, autocalbration, and real-time calibration, these boards also feature our popular USB/104 form factor.

 Prices start under $350USD, check them out here!

call 9 - 5 PST

Credit Cards Accepted


website security


acces i/o logo

Eight and Sixteen Channel 16-Bit Analog Output Cards (ISA Bus)



  • Eight or Sixteen independent double-buffered analog outputs
  • 16-Bit resolution
  • Four Voltage Output Ranges: 0-5V, 0-10V, 5V, 10V
  • Individual range selection per channel
  • Channel-by-channel or simultaneous update modes
  • Outputs held at zero volts at power-up
  • Unique "Software Clear" function permits DAC reset without resetting counters
  • Optional DC-DC Converter for 10 V output ranges
  • Setup and calibration software included

The D/A16-08 and D/A16-16 are full-size cards that can be installed in any long I/O slot of PC-AT class computers. They contain either 8 or 16 double-buffered digital-to-analog converters (DAC) and provide 8 or 16 independent analog output channels of 16-bit resolution.

The analog output channels have a double-buffered input for single-step update and each is addressed at its own I/O location. The DACs have a two-byte (8LSB's 8MSB's) loading structure. The analog outputs can be updated either independently or simultaneously.

In order to prevent excessive outputs at power-up, D/A16-08 and D/A16-16 contain automatic circuits that set D/A outputs to less than 15% of span at system power-on. Upon power-up, the DAC reference voltage is set to a low voltage and the card is set in the Simultaneous Update mode. After all DAC's have been loaded with the desired values, a software command can be used to switch the reference voltage ON at its nominal value. Similarly, a software command can be used at any time to set the reference voltage to zero causing all DAC outputs to be zero volts.

The cards also support a unique "Software Clear" capability. This feature permits resetting the DAC output to zero volts without changing the output mode.

Operation on 10 V ranges requires optional DC-DC converter as PC computer supply is marginal.


Analog Outputs

  • Resolution: 16 bits
  • Channels: Eight or Sixteen, Independent
  • Voltage Output Ranges at 5mA max.:
    0-5 VDC, 0-10 VDC, 5.0 VDC, 10.0 VDC
  • Short-circuit current: 25 mA maximum
  • Output resistance: Less than 0.1 ohm

Digital to Analog Converter

  • AD660 double-buffered monolithic chip
  • Relative Accuracy: 0.003% of Full Scale
  • Linearity: 1 LSB integral non-linearity over rated temperature range
  • Monotonicity: 15 bits over entire operating temperature range
  • Settling time: 8 uSec to 0.0008% for full scale step input
  • Gain Temperature Drift: 20 ppm/°C typ.


  • Operating Temperature: 0 to 60 degree C.
  • Storage Temperature: -20 to 85 degree C.
  • Humidity: 5% to 95% non condensing.
  • Size: 13.130 inches. Install in a full-size slot.

Power Requirements

  • 5 VDC at 2.5 max. for fully populated 16 channel card
  • 15 VDC provided by DC-DC converter from 5 supply

Regulatory Compliance

  • This product is in full compliance with CE requirements.

Part Number Price(USD)
DC-DC Converter
View / Download Manual (in .pdf format)
Acquisition Control Communications Engineering / Systems
USA Office

Address: 1480 Gulf Road, Suite 837,
PO Box 1280
Point Roberts, WA 98281

Western Canada - Vancouver BC

Tel:1.800.663.6001 or 1.604.925.6150
Address: 2454 Haywood Ave
West Vancouver, BC V7V 1Y1

Eastern Canada - Markham, Ontario

Tel:1.800.465.0164 or 1.905.513.7027
Address: 3075 14th Ave, Unit 219,
Markham, Ontario L3R 0G9