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PC/104 16 Channel, 12-bit Analog I/O with Autocalibration

DMM-AT

PC/104 16 Channel, 12-bit Analog I/O with Autocalibration & 16 digital I/O lines

Description

Overview

PC/104 Module with 16 Channel, 12-bit Analog I/O with Autocalibration

The DMM-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.

Autocalibration

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.

DMM-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.

Specifications

Analog Inputs
Number of inputs 8 differential or 16 single-ended (user selectable)
A/D resolution 12 bits (1/4096 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
Max. input voltage ±10V for linear operation
Overvoltage protection ±35V on any analog input
Input Impedance 10^13 ohms
Conversion rate 100,000 samples per second with interrupts
Input FIFO 512 samples, interrupt on half-full
Analog Outputs
Number of outputs 2
D/A resolution 12 bits (1/4096 of full scale)
Output ranges Fixed: ±5V, 0-5V
Programmable: anywhere between 0V and 10V in 1mV increments
Output current ±5mA max per channel
Settling time 4µS max to ±2/2 LSB
Relative accuracy ±1 LSB
Nonlinearity ±1 LSB, monotonic
Reset All channels reset to OV
Digital I/O
Number of inputs 8, HCT/TTL compatible
Input voltage  
Logic 0: 0.0V min, 0.8V max
Logic 1: 2.0V min, 5.0V max
Input current ±1µA max
Number of outputs 8, HCT/TTL compatible
Output voltage  
Logic 0: 0.0V min, 0.33V max
Logic 1: 3.8V min, 5.0 max
Output current  
Logic 0: 64mA max per line
Logic 1: -15mA max per line
Counter/Timers
A/D Pacer clock 32-bit down counter (2 82C54 counters cascaded)
Clock source 10MHz on-board source or external signal
General purpose 16-bit down counter (1 82C54 counter)
Interrupt trigger End of A/D conversion or scan
General
Calibration A/D and D/A circuits calibrated under software control
Power supply +5VD±10%@350mA typical
±15V output current ±10mA max with DACs unloaded
Operating temperature -40°C to +85°C Extended
Weight 3.3oz/93
RoHS Compliant

Ordering

Available Models:
DMM-AT DMM Autocalibrating 16-ch 12-bit A/D + 2-ch 12-bit D/A Extended Temperature
C-50-18 50-conductor .1" pitch 18" ribbon cable Data Acquisition

By Email

By Phone

Main: 604.814.5069
Fax: 888.831.5149

By Mail

Tri-M Technologies Inc.
208 – 31510 Gill Avenue
Mission, BC, Canada  V4S 0A1

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