DAS-16 & DAS-16F from $999
16 Channel High Speed Interfaces For
IBM PC/XT/AT and Compatibles

• 16 Single Ended/8 Differential Analog
  Input Channels
• DAS-16: 50,000 Samples Per Second A/D
  throughout with DMA
• DAS-16F: 100,000 Samples Per Second A/D Throughput with DMA
• 2 Channels of Multiplying 12 Bit D/A Output
• 8 Digital I/O Output Lines (4 input,
  4 output)
• Foreground/Background Operation
• Programmable Scan Rate
• Software Included: CALL Statement,
  Graphics, Linearization, Calibration,
  Set-up and Example Programs

The DAS-16 and DAS-16F are multifunction high speed analog/digital I/O expansion boards for the IBM Personal Computer that turns a PC into a fast high precision data acquisition and signal analysis instrument. For complete versatility, they can also be used in other bus compatible computers. Using state of the art data conversion components, the DAS-16 and DAS-16F have been designed to provide a powerful and inexpensive analog/digital interface on a full size slot board. Ideally suited to any application requiring high speed 12 bit data acquisition at lowest possible cost both boards have the freedom from complexity an the mapped I/O mapped control make programming straightforward. The DAS-16 and DAS16F implement the following functions: a 12 bit successive approximation converter with 12m s conversion time for DAS-16, 8.5 m for DAS-16F.

The channel input configuration is switch selectable on the board, providing a choice between 16 single ended channels or 8 different channels with +10V common mode range. Throughput depends on the operation configuration.

High input impedance ranges of +1V, +2V, +5V and +10V unipolar and +0.5V, +1V, +2.5V, +5V, and +10V are switch selectable. 2 channels of multiplying 12 bit D/A output with 0 to 5 V available using -5V reference on board. Other outputs are available with an external dc source. A 3 channel programmable interval timer provides trigger pulses for a A/D at any rate from 250 KHz to 1 pulse/h. Digital I/O consists of 4 bits of TTL/DTL compatible digital output and 4 bits of digital input.

The following utility software for DAS-16 is provided on a single sided PC-DOS. 1.10 format 3 1/2" floppy disc:

• A machine language driver for control of A/D, D/A and digital I/O channel functions
  and data transfer modes via BASIC CALL.
• Programmable interval timer-setting pulse rate.
• Initial setup and installation aids.
• Graphical display of data versus time and x/y mode.
• Calibration and test programs.
• Examples and demonstration programs.
• Transducer linearization.

SPECIFICATIONS
POWER CONSUMPTION
+5V power: -800mA typ, 1A max.
+12V power: 2mA typ, 5A max.
-12V power: 20mA typ, 30A max.
INSTRUMENT AMPLIFIER SWITCH
Selectable Gains: 0.5, 1, 2, 5, 10
Resolution Range: 0.244 mV to 4.88 mV/bit
Analog Inputs Switch Selectable: 16 single ended of 8 differential
Converter Type: 12-bit successive approximation
Conversion Time: 12m s (DAS-16); 8m (DAS 16F)
Accuracy: 0.01% of reading, +1 bit
Full Scale: + 10 volts
Input Current: 100 m A max at 25 ░ C
Temp Coeff.: Gain or F.S., +25 ppm/░ C max. zero, + 10m V/░ C max.
ANALOG OUTPUTS
2 ea 12 bit multiplying D/A (unipolar)
Voltage Ranges: 0 to +5V with reference supply (+10V with
external reference)
Maximum Load Current: 5 mA
Digital Inputs: 4 bits (one port, TTL compatible)
Digital Outputs: 4 bits (one port, TTL compatible)
ENVIRONMENTAL
Operating Temperature Range: 0 TO 50░ C
Storage Temperature Range: -20 to 70░ C
Humidity: 0 to 90% non-condensing
Connection: Requires full size slot. Standard 37-pin "D" type
mail connector