A1322 - Allegro MicroSystems

A1322 Ratiometric Linear Hall Effect Sensor IC

Connects power supply to chip Output from circuit Ground Number Package LH Package UA 1 1 2 3 3 2 A1321-DS Rev. 3 Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com 2 A1321/A1322/A1323 Ratiometric Linear Hall Effect Sensor for High-Temperature Operation DEVICE CHARACTERISTICS.

Features

of this family of devices are ideal for use in the harsh environments found in automotive and industrial linear and rotary position sensing systems. Each device has a BiCMOS monolithic circuit which integrates a Hall element, improved temperature-compensating circuitry to reduce the intrinsic sensitivity drift of the Hall element, a small-signal high-gain amplifier, and a rail-to-rail lowimpedance output stage. A proprietary dynamic offset cancellation technique, with an internal high-frequency clock, reduces the residual offset voltage normally caused by device overmolding, temperature depende.