GENERAL DESCRIPTION

The AD670 is a complete 8-bit signal conditioning analogto-digital converter. It consists of an instrumentation amplifier front end along with a DAC, comparator, successive approximation register (SAR), precision voltage reference, and a threestate output buffer on a single monolithic chip. No external components or user trims are required to interface, with full accuracy, an analog system to an 8-bit data bus.

FEATURES

Complete 8-Bit Signal Conditioning A/D Converter

Including Instrumentation Amp and Reference

Microprocessor Bus Interface

10 ms Conversion Speed

Flexible Input Stage: Instrumentation Amp Front End

Provides Differential Inputs and High Common-Mode

Rejection

No User Trims Required

No Missing Codes Over Temperature

Single +5 V Supply Operation

Convenient Input Ranges

20-Pin DIP or Surface-Mount Package

Low Cost Monolithic Construction

MIL-STD-883B Compliant Versions Available