A3421 Datasheet - Allegro

A3421 Hall Effect Direction Detection Sensor

Data Sheet 27650.1 3421 AND 3422 PRELIMINARY INFORMATION HALL-EFFECT, (subject to change without notice) DIRECTION-DETECTION SENSOR ICS September 6, 2000 The A3421xKA and A3422xKA Hall-effect, direction-detection sensor ICs are a new generation of special-function devices that E1 E2 are capable of sensing the direction of rotation of a ring magnet. These transducers provide separate digital outputs that provide information on X X magnet rotation speed, direction, and magnet pole coun.

A3421 Features

* Internal Direction-Decoding Circuitry

* Two Matched Hall Latches On A Single Substrate

* Superior Temperature Stability

* 4.5 V to 18 V Operation Electrically Defined Power-On State Under-Voltage Lockout Always order by complete part number, e.g., A3421EKA . 3421 AND 3422 HALL-EF

A3421 Datasheet (1.20 MB)