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A1304: Linear Hall-Effect Sensor IC with Analog Output

Allegro 3-Pin SOT23W LH Package

A1304 ECAD Model Type Image
A1304 Datasheet
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Description

Top Features

Packaging

New applications for linear output Hall effect sensors require medium accuracy and smaller package size. The Allegro A1304 linear Hall effect sensor IC has been designed specifically to achieve both goals. This temperature-stable device is available in a miniature surface mount package (SOT23-W).

This ratiometric Hall effect sensor provides a voltage output that is proportional to the applied magnetic field and features a quiescent voltage output of 50% of the supply voltage.

Each BiCMOS monolithic circuit integrates a Hall element, offset and sensitivity trim circuitry to correct for the variation in the Hall element, a small-signal high-gain amplifier, and a proprietary dynamic offset cancellation technique.

The A1304 sensor IC is available in a 3-pin surface mount SOT-23W style package (LH suffix). The package is lead (Pb) free, with 100% matte tin leadframe plating.

  • 3.3 V supply operation
  • Allegro factory programmed offset and sensitivity
  • Miniature package
  • High bandwidth, low noise analog output
  • High speed chopping scheme minimizes QVO drift across operating temperature range
  • Temperature-stable quiescent voltage output and sensitivity
  • Precise recoverability after temperature cycling
  • Wide ambient temperature range: –40°C to 85°C
  • Immune to mechanical stress
3-Pin-SOT23W-LH-package

The A1304 sensor IC is available in a 3-pin surface mount SOT-23W style package (LH suffix). The package is lead (Pb) free, with 100% matte tin leadframe plating.

LH Package Documentation

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Part Number Specifications and Availability

Documentation and Resources

Documentation

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All Types Application Note Selection Guide
Documents Found: 32
Document Type Document Name
Application Note
January 31, 2023
PCB Ground Plane Optimization for Coreless Current Sensor Applications
Selection Guide
Allegro Product Selection Guide