Two-Wire, Zero-Speed, High-Accuracy Differential Hall-Effect Sensor IC

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A1684

The A1684 offers a simplified two-wire solution for speed and position sensing of ring magnets or gear teeth, featuring true zero-speed operation, automatic gain control, and advanced calibration algorithms for robust performance in automotive applications.

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Documentation and Resources

Document Type	Document Name
Application Note	Allegro Microsystems - Chemical Exposure of Devices
Application Note	Allegro Hall-Effect Sensor ICs
Application Note	Fundamental Properties of Speed Sensors
Guide	Guidelines for Designing Subassemblies Using Hall-Effect Devices
Technical Article	Back-Biased Packaging Advances (SE, SG, SH, and SJ versus SA and SB)
Technical Article	Soldering Methods for Allegro Products (SMD and Through-Hole)

Document Type

Document Name

Application Note

Allegro Microsystems - Chemical Exposure of Devices

Application Note

Allegro Hall-Effect Sensor ICs

Application Note

Fundamental Properties of Speed Sensors

Guide

Guidelines for Designing Subassemblies Using Hall-Effect Devices

Technical Article

Back-Biased Packaging Advances (SE, SG, SH, and SJ versus SA and SB)

Technical Article

Soldering Methods for Allegro Products (SMD and Through-Hole)

Two-Wire, Zero-Speed, High-Accuracy Differential Hall-Effect Sensor IC

A1684

Top Features

Packaging

Part Number Specifications and Availability

Differential Speed Sensor System Solutions

Documentation and Resources

Documentation