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