Diamond Systems 32 Channel 16bit ADC Module - DMM-32X-AT


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Diamond Systems  32 Channel 16bit ADC Module - DMM-32X-AT

DMM-32X-AT is Diamond Systems’ most advanced embedded A/D board.


It includes a comprehensive suite of analog and digital features to fit a wide I/O Modulevariety 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.
  • Extended temperature operation of -40 to +85oC is tested and guaranteed. Using our patented auto-autocalibration technology, DMM-32X-AT will provide accurate analog measurements across its entire rated operating temperature range, ensuring reliable performance for critical applications.
  • Advanced Universal Driver software is included free with DMM-32X-AT and all their CPU and I/O boards. Universal Driver provides a programming library that simplifies control of all the board’s features and enables you to develop your application software quickly.




Analog Inputs

Number of 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


±3LSB, no missing codes

Conversion rate

250,000 samples/sec.max

On-board FIFO

1024 16-bit samples


Automatic;values stored in EEPROM

Analog Outputs

Number of outputs


D/A resolution

12 bits (1/4096 of full scale)

Output ranges

±5, ±10, 0-5, 0-10

Output current

±5mA max per channel

Settling time

6µS max to 0.01%

Relative accuracy

±1 LSB


±1 LSB, monotonic


Reset to zero-scale or mid-scale (jumper selectable)


Automatic; values stored in EEPROM

Waveform Buffer

1,024 samples, cyclical

Digital I/O

Main I/O

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


A/D Pacer clock

32-bit down counter (2 82C54 counters cascaded)

Clock source

10MHz on-board clock or external signal

General purpose

16-bit down counter (1 82C54 counter)


Power supply

+5VD±10% @410mA typical

Operating temperature

-40°C to +85°C




58, 574 hours



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  • Diamond Systems  32 Channel 16bit ADC Module - DMM-32X-AT
  • Diamond Systems  32 Channel 16bit ADC Module - DMM-32X-AT