GENERAL DESCRIPTION

The AD974 is a four-channel, data acquisition system with a serial interface. The part contains an input multiplexer, a high speed 16-bit sampling ADC and a +2.5 V reference. All of this operates from a single +5 V power supply that also has a power down mode. The part will accommodate 0 V to +4 V, 0 V to +5 V or ±10 V analog input ranges.

FEATURES

Fast 16-Bit ADC with 200 kSPS Throughput

Four Single-Ended Analog Input Channels

Single +5 V Supply Operation

Input Ranges: 0 V to +4 V, 0 V to +5 V and ±10 V

120 mW Max Power Dissipation

Power-Down Mode 50 mW

Choice of External or Internal 2.5 V Reference

On-Chip Clock

Power-Down Mode