Micropower Ultrasensitive Hall-Effect Switch with Configurable Magnetic Actuation

A1171

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The A1171 is an ultrasensitive Hall-effect switch ideal for battery-powered applications, with low power consumption, configurable magnetic actuation (unipolar, omnipolar), and push-pull outputs for simplified design.

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Product Details

Top Features

1.65 to 3.5 V battery operation
Low supply current
High sensitivity, B_OP typically 30 G (3.0 mT)
Operation with either north or south pole
Configurable unipolar or omnipolar magnetic sensing
Complementary, push-pull outputs
Chopper stabilized
- Superior temperature stability
- Extremely low switchpoint drift
- Insensitive to physical stress
Solid state reliability
Small size

Target Application

Part Number Specifications and Availability

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A1171EEWLT-P

supply_voltage_min_v: 1.65
supply_voltage_max_v: 3.5
average_supply_current_ua: 3.5
features: Dual Output Hall Switch
output: Voltage
sensor_type: 1D Planar
temp_ranges: -40°C to 85°C
technology: Hall
typical_bop: ±3.2/ ±32
typical_brp: ±2.6/ ±26
packing_information: Reel
market: Industrial

Design Tools

ECAD FILE

A1171

Software

Software Portal

Technical Documentation

Application Note

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Micropower Ultrasensitive Hall-Effect Switch with Configurable Magnetic Actuation

A1171

Product Details

Product Details

Top Features

Target Application

Part Number Specifications and Availability

A1171EEWLT-P

Design Tools

A1171

Software Portal

Technical Documentation

Micro-Power Position Sensing in Cell Phone Applications

Handling, Storage, and Shelf Life of Semiconductor Devices

Vertical Hall Technology Enables Effective Tamper Detection

Allegro Microsystems - Chemical Exposure of Devices

Omnipolar Switch Hall-Effect IC Basics

Hall-Effect IC Applications Guide

Guidelines for Designing Subassemblies Using Hall-Effect Devices