User`s guide

•

Introduction

1.2 Applications

• Industrial and laboratory ON/OFF control

• Energy management

• Annunciation

• 16 TTL/DTL compatible digital input channels

• Security controller

• Product test

• Period and pulse width measurement

• Event and frequency counting

• Waveform and pulse generation

1.3 Specifications

♦

Analog Input (A/D)

• Converter: ADS-774 or equivalent one, successive

approximation type

• Resolution: 12-bit

• Number of channels: 8 single-ended

• Programmable Gain: 1, 2, 4, 8, 16 (programmable)

• Input Range: (programmable)

Bipolar :

5V,

2.5V,

1.25V,

0.625V, and

0.3125V

• Conversion Time: 8 µ sec

• Maximum Sampling Rate: > 50KHz

• Over-voltage protection: Continuous ± 35V maximum

• Accuracy: 0.015% of reading ± 1 Bit LSB

• Input Impedance: 10 MΩ

• AD Clock Sources (trigger modes): Software trigger, internal

timer pacer, and external pulse trigger

• Data Transfer Modes: Polling and Interrupt

♦

Analog Output (D/A)

• Converter: DAC7548 or equivalent, monolithic multiplying

• Number of channel: 1 double-buffered analog outputs

• Resolution: 12-bit