PC/104 32-ch 16-bit 250-KHz A/D, 4-ch 16-bit D/A with auto-calibration & 24 DIO

  • Description
  • Specifications
  • Ordering Guide

DMM-32DX-AT is one of the most advanced embedded A/D board. It includes a comprehensive suite of analog and digital features to fit a wide variety of embedded application needs.

The 32 A/D input channels feature high-accuracy 16-bit resolution, 250KHz maximum sampling rate, programmable input ranges, and user-selectable single-ended / differential configuration.  The 4 D/A output channels feature user-selectable output ranges as well as a programmable waveform generator feature.

The 24 digital I/O feature bit by bit direction programmability as well as buffers for enhanced output current of -15mA (logic 1) / 64mA (logic 0). The on-board programmable counter/timer circuitry includes a 32-bit counter/timer for A/D and D/A sample timing, as well as a 16-bit counter/timer for general counting, timing, and programmable interrupt functions.

Analog Inputs 32 single-ended, 16 differential, or 16 SE + 8 DI; user selectable
A/D resolution 16 bits (1/65,536 of full scale)
Bipolar ranges ±10V, ±5V, ±2.5V, ±1.25V, ±0.625V
Unipolar ranges 0-10V, 0-5V, 0-2.5V, 0-1.25V, 0-.625V,
Input bias current 100pA max
Overvoltage protection ±35V on any analog input without damage
Input Impedance 10^13 ohms
Nonlinearity ±3LSB, no missing codes
Conversion rate 250,000 samples/sec. max
On-board FIFO 1024 16-bit samples
Calibration Automatic;values stored in EEPROM
Analog Outputs 4
D/A resolution 16-bits (1/65536 of full scale) standard, 12-bits (1/4096 of full scale) optional
Output ranges ±5, ±10, 0-5, 0-10, ±2, 5V, programmable in I/O, 53mV steps
Output current ±5mA max per channel
Settling time 6µS max to 0.01%
Relative accuracy ±1 LSB
Nonlinearity ±1 LSB, monotonic
Reset Reset to zero-scale or mid-scale (jumper selectable)
Calibration Automatic; values stored in EEPROM
Waveform Buffer 1,024 samples, cyclical
Digital I/Os 24 programmable I/O
Input current ±1µA max
Output current Logic 0: 64mA max. per line
Logic 1: -15mA max. per line
Auxilary I/O 4 inputs, 4 outputs, optional use as trigger/control lines
Power supply +5V ±5% @ 410mA typ
Operating temperature -40 to +85degC
Model Description
DMM-32DX-AT PC/104 32-ch 16-bit 250-KHz A/D, 4-ch 16-bit D/A with auto-calibration and 24 DIO