- Diamond Systems Corporation User Manual

Diamond-MM-48-AT User Manual V1.01 Page 3

DIAMOND-MM-48-AT Autocalibrating Analog I/O PC/104 Module

1. DESCRIPTION

Diamond-MM-48-AT (DMM-48-AT) is a PC/104 expansion board offering embedded systems

designers a full feature set of analog and digital I/O capabilities. It is designed to be used in

any PC-compatible embedded computer with a PC/104 (ISA-bus) expansion connector.

DMM-48-AT offers reduced embedded system size and weight, as well as lower cost, by

providing more functionality on one board than other data acquisition boards.

Key features include:

Analog Inputs

♦ 16 single-ended analog inputs

♦ 16-bit A/D resolution

♦ 200KHz maximum aggregate A/D sampling rate

♦ +/-10V and +/-5V input ranges standard; 0-5V input range optional

♦ 2048-sample FIFO for reliable high-speed sampling

♦ Autocalibrated input circuit

Analog Outputs

♦ 8 analog outputs

♦ 12-bit D/A resolution, 0-4.096V output range (1mV per LSB)

♦ Autocalibrated output circuit

Digital I/O

♦ 4 programmable direction digital I/O lines

♦ Edge detection capability with interrupt on change of state

Optocoupler Inputs

♦ 4 optocoupler inputs, 3-28VDC input range

♦ Configurable input polarity

♦ Edge detection capability with interrupt on change of state

Relay Outputs

♦ 8 SPDT (form C) relays

♦ 1A / 30VDC or 0.125A / 125VAC rating

Counter/Timers

♦ 1 24-bit counter/timer for A/D sampling rate control

♦ 1 16-bit counter/timer for user counting and timing functions

♦ Programmable clock source for user counter/timer

System Features

♦ +5V-only operation

♦ Latching I/O connectors

♦ Jumpers may be replaced with zero-ohm resistors for increased ruggedness

♦ Extended temperature operation (-40 to +85