Sm-Dac1; Introduction; Specifications - PEP Modular Computers Modular Computers RS485 User Manual

Chapter 5 Analog Modules

5.5 SM-DAC1

5.5.1 Introduction

The SM-DAC1 provides a fast, 12-bit, bipolar ( 10V DC), 2/6-channel
digital to analog converter. Two configurable red LEDs on the front panel
form the user interface while an on-board EEPROM stores unique calibra-
tion data required by the signal converter.
A version of the SM-DAC1 for current output (0 .. 20mA) is also available.

5.5.2 Specifications

Isolation
Output
Ext. Vcc
EEPROM
Front Panel
Power Cons.
Temperature Range Standard (0 C to +70 C), Ext./Storage (-40 C to +85 C)
Module Weight
ID Byte
† The conversion time applies per channel for a full scale voltage swing of
(-10V .. +10V)
October 01, 1996
1.0 kV Optoisolated from the system
2/6 Outputs
Output Range 10V DC (0 .. 20mA)
12-bit DAC with 1-bit non-linearity
11-bit Repeating Accuracy
Glitch-Free Power-On-Reset
2mA (max.) output current (voltage version)
75 s Conversion Time @ 1MHz SCLK †
24V DC (-10% .. +20%)
256 Byte serial EEPROM for Calibration Data
2 Red LEDs (User Configurable)
660mW (max. voltage version)
400mW (max. current version)
70g
$40, read by the SPI Interface
©1996 PEP Modular Computers GmbH
SMART I/O User's Manual
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