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Products   >   I/O Expansion Modules   >   Analog I/O Modules   >   Diamond-MM-16-AT Analog I/O Module
16 analog inputs, 16-bit resolution
100KHz max sampling rate
Programmable gain and range
Interrupt-based A/D data transfer with FIFO support
4 12-bit analog outputs
Programmable analog output range
Multi-range autocalibration for highest accuracy
16 digital I/O lines
+5V only power supply
-40°C to +85°C operation
Drop-in upgrade for Diamond-MM-16
Customers who use this product also use:
50-pin Data Acquisition Cable

This product can be customized and ruggedized. Click here for more information.
See Diamond-MM-16-AT Analog I/O Module Technical Resources
A/D Board Tutorial
Request Product information
Request Technical Support
Diamond-MM-16-AT Datasheet
(.pdf, 213.5 kb)
Diamond-MM-16-AT Manual v1.26
(.pdf, 642.3 kb)
Diamond-MM-16-XT (old board) Manual v1.1
(.pdf, 122.0 kb)
Analog Interfacing Considerations
(.pdf, 344.7 kb)
Autocalibration Technology Backgrounder
(.pdf, 112.9 kb)
Diamond-MM-16-AT Example Programs for UD 5.91
(.zip, 2.0 MB)
Universal Driver Software

Diamond-MM-16-AT Analog I/O Module

16-channel, 16-bit Analog I/O with Autocalibration

Diamond-MM-16-AT Analog I/O Module
click for a larger image
Analog Input Ranges
Analog Output Ranges
Counters and Digital I/O
I/O Header Pinout
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The Diamond-MM-16-AT features top performance and flexibility for a mid-range price. It has 16 single-ended / 8 differential analog inputs with both unipolar and bipolar input ranges and programmable gain. It has a maximum sampling rate of 100KHz, supported by a 512-sample FIFO with a 256-sample threshold for gap-free A/D sampling. Both single-channel and multi-channel scan sampling modes are supported. The A/D can be triggered with a software command, the on-board programmable timer, or an external signal. These feature give you maximum flexibility to configure the board to your application.

Analog Inputs

The 16 16-bit analog input channels on Diamond-MM-16-AT feature programmable gains of 1, 2, 4, and 8, as well as programmable unipolar/bipolar range, for a total of 7 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.

Input Range Resolution
0 - 10V 153uV
0 - 5V 76uV
0 - 2.5V 38uV
±10V 305uV
±5V 153uV
±2.5V 76uV
±1.25V 38uV
±0.625V 19uV

Analog Outputs

The board also has 4 12-bit D/A channels with multiple unipolar and bipolar output ranges. The DACs feature simultaneous update capability. A new programmable output range feature lets you set the output range via software anywhere between 0V and 10V with 1mV precision in both unipolar and bipolar modes.


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

Diamond-MM-16-AT 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-16-AT requires only +5V power supply and operates over the full industrial temperature range of -40 to +85oC.

I/O Header Pinout

Vin 15 / 7- 1 2 Vin 7 / 7+
Vin 14 / 6- 3 4 Vin 6 / 6+
Vin 13 / 5- 5 6 Vin 5 / 5+
Vin 12 / 4- 7 8 Vin 4 / 4+
Vin 11 / 3- 9 10 Vin 3 / 3+
Vin 10 / 2- 11 12 Vin 2 / 2+
Vin 9 / 1- 13 14 Vin 1 / 1+
Vin 8 / 0- 15 16 Vin 0 / 0+
Analog Ground 17 18 VRef Out
Analog Ground 19 20 Vout 0
Analog Ground 21 22 Vout 1
Analog Ground 23 24 +15V
-15V Output 25 26 Vout 2
Analog Ground 27 28 Vout 3
In 0- 29 30 Digital Ground
Out 31 32 Out 2
Digital Out 7 33 34 Digital Out 6
Digital Out 5 35 36 Digital Out 4
Digital Out 3 37 38 Digital Out 2
Digital Out 1 39 40 Digital Out 0
Digital In 7 41 42 Digital In 6
Digital In 5 43 44 Digital In 4
Digital In 3 45 46 Digital In 2/Gate 0
Digital In 1 47 48 Digital In 0/Gate 1/2
+5V 49 50 Digital Ground


Analog Inputs
Number of inputs 8 differential or 16 single-ended (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
Input bias current 3nA max
Overvoltage protection ±35V on any analog input without damage
Input Impedance 10^13 ohms
Nonlinearity ±3LSB, no missing codes
Conversion rate 100,000 samples/sec. max with interrupts
Conversion trigger Software trigger, internal pacer clock, or external TTL signal
Input FIFO 512 samples
A/D interrupt End of A/D conversion
End of A/D scan
FIFO half-full
Analog Outputs
Number of outputs 4
D/A resolution 12 bits (1/4096 of full scale)
Output ranges Fixed: ±5, 0-5V
Programmable: Anywhere between 0Vand 10V in 1mV increments
Reset: All channels reset to mid-scale (0V for bipolar ranges)
Output current ±5mA max per channel
Settling time 6µS max to 0.01%
Relative accuracy ±1 LSB
Nonlinearity ±1 LSB, monotonic
Reset All channels reset to 0V
Digital I/O
Number of inputs 8, FCT/TTL compatible
Input voltage
Logic 0 0.0V min, 0.8V max
Logic 1 2.0V min, 5.0V max
Number of outputs 8, FCT/TTL compatible
Output voltage
Logic 0 0.0V min, 0.33V max
Logic 1 3.8V min, 5.0V max
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)
Calibration A/D and D/A circuits calibrated under software control
Power supply +5V ±10% @ 320mA typ
±15V output current ±10mA max with DACs unloaded
Operating temperature -40°C to +85°C Extended
Weight 3.3 oz/93g
RoHS Compliant

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Diamond-MM-16-AT Analog I/O Module
available models:
Diamond-MM Autocalibrating 16-ch 16-bit A/D + 4-ch 12-bit D/A Extended Temperature
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Cables and accessories
available models:
50-conductor .1" pitch 18" ribbon cable, Data acquisition Cable
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