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

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PC/104PC/104 16-Bit Analog I/O Module with Autocalibration

  • 16 analog inputs, 16-bit resolution
  • 100KHz max sampling rate
  • Programmable gain and range
  • FIFO support and interrupt-based A/D data transfer with Full flag and Underflow flag for better monitoring
  • 4 12-bit analog outputs
  • 16 digital I/O lines with choice of 8 in + 8 out, 16 out, or 16 in
  • 5V/3.3V logic level operation
  • Rugged -40°C to +85°C operation
  • Drop-in upgrade for Diamond MM-16-AT

 

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Description

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

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 Description

The DMM-16R-AT features top performance and flexibility for a mid-range price. It has 16 single-ended / 8 differential analog voltage inputs with both unipolar and bipolar input ranges, programmable gain, and a maximum sampling rate of 100KHz. The 4 D/A channels and 16 digital I/O lines provide additional real-world control and monitoring capability. The full -40°to +85°C industrial temperature operation ensures reliable and accurate performance in any embedded system application. A fully-featured software library with example programs and a graphical user interface completes the solution to make the DMM-16R-AT a solid choice for PC/104 embedded systems requiring analog I/O.

  Features

  • 16 analog inputs, 16-bit resolution
  • 100KHz max sampling rate
  • Programmable gain and range
  • FIFO support and interrupt-based A/D data transfer with Full flag and Underflow flag for better monitoring
  • 4 12-bit analog outputs
  • 16 digital I/O lines with choice of 8 in + 8 out, 16 out, or 16 in
  • 5V/3.3V logic level operation
  • Rugged -40°C to +85°C operation
  • Drop-in upgrade for Diamond MM-16-AT

Block Diagram

Analog Inputs

The 16 16-bit analog input channels 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). Both single-channel and multi-channel scan sampling modes are supported. A 512-sample FIFO combined with interrupt data transfers enables the board to operate reliably at full speed in any operating system and reduce the overall load on the processor, by reducing the overall interrupt rate and eliminating the need to handle individual read operations for each sample. The A/D can be triggered with a software command, the on-board programmable timer, or an external signal. These features give you maximum flexibility to configure the board to your application.

Analog Outputs

The board also has 4 12-bit analog voltage outputs with multiple unipolar and bipolar output ranges. The DACs support individual and simultaneous update capability. A 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. For higher volume applications, the D/A chip can be removed for cost reduction.

Autocalibration for Highest Accuracy

Both analog inputs and outputs benefit from our unique multi-range autocalibration process. Multiple on-board precision references with high temperature stability are used to calibrate each analog input range individually, thereby ensuring the highest degree of accuracy over the life of the product. The analog outputs are also fed back to the autocalibration circuit for precise output range calibration.

Digital I/O Features

DMM-16R-AT digital features include a 32-bit counter/timer to provide A/D sampling control and a 16-bit counter/timer for general purpose counting and rate generator functions. The board also provides 16 programmable digital I/O lines grouped into two 8-bit ports, each of which can be programmed for either input or output. The digital I/O lines feature jumper-selectable 3.3V / 5V logic levels and 10K pull-up / pull-down resistors.

Backwards Compatibility

DMM-16R-AT is fully compatible with the original DMM-16-AT analog I/O module and can serve as a drop-in replacement offering reduced cost and enhanced digital I/O features. The mechanical design, connector type and pinout, and software interface are all identical the original board, eliminating any mechanical or software engineering efforts. Our migration guide explains the differences to enable customers to switch to the new model to achieve these benefits and extend product lifetimes.

Software Support

DMM-16R-AT is supported by our Universal Driver software for Windows and Linux. Universal Driver features a library of functions for C-language software development that simplifies all I/O operations, including administrative functions such as calibration. Example programs are provided in both source code and executable format for demonstration and immediate usability. Our unique Control Panel program provides a graphical user interface for both Windows and Linux that can control all the board’s features in real time. It can be used for proof of concept, prototyping, and diagnostics. Universal Driver may be ported to other operations systems by customer request.

  Specifications

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,256-sample interupt threshold
A/D interrupt End of A/D conversion
End of A/D scan
FIFO half-full
Calibration A/D and D/A circuits calibrated under software control using on-board precision references and EEPROM storage
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 0V and 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
Digital I/O
Number of lines 16, organized as 2 8-bit ports
Logic Levels 3.3V / 5V jumper selectable
Termination 10K ohm pull-up / pull-down resistors, jumper selectable
Input voltage Vlogic = 5V
Logic 0 1.65V max
Logic 1 3.35V min
Output voltage Vlogic = 5V
Logic 0 0.44V max, Iout = 24mA
Logic 1 3.76V min, Iout = -24mA
Input voltage Vlogic = 3.3V
Logic 0 0.80V max
Logic 1 2.00V min
Output voltage Vlogic = 3.3V
Logic 0 0.44V max, Iout = 24mA
Logic 1 2.25V min, Iout = -24mA
Counter/Timers
A/D Timer clock 32-bit down counter
General purpose 16-bit down counter
Clock source 10MHz on-board clock or external signal
General
Bus Interface ISA (5V) bus
Power supply +5V ±5% @ 390mA typical
Operating temperature -40°C to +85°C tested and guaranteed
Weight 64g / 2.25oz
RoHS Compliant

 

DIAMOND-MM-16R-AT Analog I/O Module
available models:
DMM-16R-AT
Diamond-MM Autocalibrating 16-ch 16-bit A/D +4-ch 12-bit D/A Extended Temp.
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Diamond MM-16R-AT Analog I-O Module

Cables and accessories
available models:
C-50-18
50-conductor .1″ pitch 18″ ribbon cable Data Acquisition
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Diamond MM-16R-AT Analog I-O Module

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For more than 50 years, Integrys has been the industry leader in selecting and evaluating new embedded, high-availability computer, imaging and video technology and engineering solutions for demanding markets and applications. The Integrys “seal of approval” is your assurance of proven value. These solutions include not only COTS products, but associated support and engineering services of value to our customers.

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