GENERAL DESCRIPTION

The AD7862 is a high speed, low power, dual 12-bit A/D converter that operates from a single +5 V supply. The part contains two 4 µs successive approximation ADCs, two track/hold amplifiers, an internal +2.5 V reference and a high speed parallel interface.

FEATURES

Two Fast 12-Bit ADCs

Four Input Channels

Simultaneous Sampling & Conversion

4 μs Throughput Time

Single Supply Operation

Selection of Input Ranges:

±10 V for AD7862-10

±2.5 V for AD7862-3

0 V to 2.5 V for AD7862-2

High Speed Parallel Interface

Low Power, 60 mW typ

Power Saving Mode, 50 μW typ

Overvoltage Protection on Analog Inputs

14-Bit Pin Compatible Upgrade (AD7863)

APPLICATIONS

AC Motor Control

Uninterrupted Power Supplies

Data Acquisition Systems

Communications