GENERAL DESCRIPTION

The AD7898 is a fast 12-bit ADC that operates from a single 5 V supply and is housed in a small 8-lead SOIC package. The part contains a successive approximation A/D converter, an on-chip track/hold amplifier, an on-chip clock, and a high speed serial interface.

FEATURES

Fast 12-Bit ADC with 220 kSPS Throughput Rate

8-Lead SOIC

Single 5 V Supply Operation

High Speed, Flexible, Serial Interface that

Allows Interfacing to 3 V Processors

On-Chip Track/Hold Amplifier

Selection of Input Ranges

±10 V for AD7898-10

±2.5 V for AD7898-3

High Input Impedance

Low Power: 22.5 mW Max