A3211 Datasheet Micropower Ultrasensitive Hall-Ef?fect Switches

Manufacturer: Allegro MicroSystems

A3211 micropower ultrasensitive hall-ef?fect switches by Allegro MicroSystems - Datasheet Preview

Datasheet Details

Part number	A3211
Manufacturer	Allegro MicroSystems
File Size	784.33 KB
Description	Micropower Ultrasensitive Hall-Ef?fect Switches
Datasheet	A3211 Datasheet

General Description

TheA3211 andA3212 integrated circuits are ultrasensitive, pole independent Hall-effect switches with latched digital output.

These devices are especially suited for operation in batteryoperated, hand-held equipment such as cellular and cordless telephones, pagers, and palmtop computers.

A 2.5 to 3.5 V operation and a unique clocking scheme reduce the average operating power requirements to less than 15 μW with a 2.75 V supply.

Overview

A3211 and A3212 Micropower Ultrasensitive Hall-Effect Switches.

Key Features

AEC-Q100 automotive qualified.
Micropower operation.
Operation with north or south pole.
2.5 to 3.5 V battery operation.
Chopper stabilized.
Superior temperature stability.
Extremely low switch point drift.
Insensitive to physical stress.
High ESD protection.
Solid-state reliability.
Small size.
Easily manufacturable with magnet pole independence.

More Datasheets from Allegro MicroSystems

Part Number	Description
A3212	Micropower Ultrasensitive Hall-Ef?fect Switches
A3209	ULTRA-SENSITIVE HALL-EFFECT SWITCHES
A3230	Chopper-Stabilized Hall-Effect Bipolar Switch
A3240	PRECISION HALL-EFFECT SWITCH
A3245	Chopper-Stabilized Omnipolar Hall-Effect Switches
A3250	Chopper-Stabilized Unipolar Hall-Effect Switches
A3251	Chopper-Stabilized Unipolar Hall-Effect Switches
A3260	2-Wire Chopper Stabilized Precision Hall Effect Bipolar Switch
A3282	Chopper-Stabilized Hall Effect Latch