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Diamond Point International

Diamond Systems Diamond-MM-AT - PC/104 Analog I/O Module

16 12-Bit Analog Inputs, 2 12-Bit Analog Outputs, 16 Digital I/O


The Diamond-MM-AT analog I/O module offers autocalibration, programmable gain, A/D FIFO, and extended temperature operation to mid-range 12-bit analog I/O users. All these features are added on top of our existing Diamond-MM architecture at the same price as the original board, to bring you an unbeatable combination of features at this price level. 


The 16 12-bit analog input channels feature programmable gains of 1, 2, 4, and 8, as well as programmable unipolar/bipolar range, for a total of 9 different input ranges. Maximum sampling rate is 100KHz (total for all channels), and a new 512-sample FIFO enables the board to operate at full speed in Windows operating systems using interrupts. DMA is no longer required to attain full speed.

Diamond-MM-AT offers 9 different programmable input ranges, including both unipolar and bipolar modes. Single-ended / differential operation is selected with jumpers, as it is with all our analog I/O boards.

Analog Outputs

The board also has 2 12-bit analog outputs with multiple unipolar and bipolar output ranges. A new programmable output range feature lets you set the output range anywhere between 0V and 10V with 1mV precision in software.

Analog Inputs

Both analog inputs and outputs benefit from our unique multi-range autocalibration process. Multiple on-board precision references are used to calibrate the board in each range, thereby ensuring the highest degree of accuracy. The analog outputs are also fed back to the autocalibration circuit for precise output range calibration as well as user-programmable output ranges.

Counters and Digital I/O

The board also has an on-board counter/timer to control A/D sampling or rate generator functions, 8 digital inputs, and 8 digital outputs. New features enable you to generate hardware interrupts from the counter/timer as well as an external digital signal. And in keeping with our real-world-friendly design, Diamond-MM-AT requires only +5V power supply and operates over the full industrial temperature range of -40 to +85oC.


Analog Inputs

Number Of Outputs8 differential or 16 single-ended (user selectable)
Resolution12 bits (1/4096 of full scale)
RangeBipolar ranges: ±10V, ±5V, ±2.5V, ±1.25V, ±0.625V
Unipolar ranges: 0-10V, 0-5V, 0-2.5V, 0-1.25V
Max Sample Rate100,000 samples/sec. max with interrupts
Input Bias Current3nA max
Maximum Input Voltage±10V for linear operation
Overvoltage Protection±35V on any analog input without damage
Input Impedance10^13 ohms
On-board FIFO512 samples, interrupt on half-full
CalibrationAutocalibration with software support, values stored in EEPROM

Analog Outputs

Number Of Outputs2, 12-bit resolution
Resolution12 bits (1/4096 of full scale)
Current±5mA max per channel
RangeFixed: ±5, 0-5V
Programmable: Anywhere between 0V and 10V in 1mV increments
Settling time4µS max to ±2/2 LSB
Relative accuracy±1 LSB
Nonlinearity±1 LSB, monotonic
ResetAll channels reset to 0V
CalibrationAutocalibration with software support, values stored in EEPROM

Digital I/O/Counter/Timers

I/Os8 inputs, FCT/TTL compatible
8 outputs, FCT/TTL compatible
InputsInput voltage
• Logic 0 : 0.0V min, 0.8V max
• Logic 1 : 2.0V min, 5.0V max
Input current: ±1µA max
OutputsOutput voltage
• Logic 0 : 0.0V min, 0.33V max
• Logic 1 : 3.8V min, 5.0V max
Counter/Timer(s)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)


ExpansionStandard 16 bit PC/104 interface
ElectricalPower Input: +5VDC ±10%
Power Consumption: 320mA typ
MechanicalDimensions: 96mm x 90mm, standard PC/104
Conformal CoatingOn request
Windows XP
Windows 7
Windows CE.Net
Contact us for others
APIUniversal Driver 7.0
TemperatureTemperature range (operation): -40ºC to +85ºC (-40ºF to +185ºF)
Temperature range (storage): -40ºC to +85ºC (-40ºF to +185ºF)
Humidity0-90% non-condensing
Weight3.3 oz/93g
Warranty1 Year

Ordering Details

Diamond-MM Autocalibrating 16-ch 12-bit A/D + 2-ch 12-bit D/A Extended Temperature
AccessoriesC-50-18 50-conductor 18" ribbon cable