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A1308LUA-T

A1308LUA-T

Allegro MicroSystems
An Allegro ratiometric linear Hall sensor in the same family that can serve as an alternative for similar analog position sensing applications.
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Overview

The A1308LUA-T is a ratiometric linear Hall-effect sensor IC designed for high-accuracy analog position sensing. It provides a low-noise, high-bandwidth analog output that is proportional to the applied magnetic field, making it suitable for displacement and angular measurement in harsh environments.

Why Choose This Part

This sensor features a high-speed chopping scheme that minimizes quiescent voltage output (QVO) drift across its -40C to 150C operating temperature range. It is AEC-Q100 qualified for automotive EMC requirements and includes dynamic offset cancellation for superior temperature stability.

Applications

Throttle Position Sensing
Detecting valve or pedal positions in automotive powertrain systems.
Magnetic Proximity Detection
Measuring the distance between the sensor and a moving magnetic target for non-contact sensing.
Current Sensing
Monitoring current in conductors by measuring the magnetic field generated by the flow of electricity.
Weight and Pressure Sensing
Detecting mechanical displacement in scales or pressure diaphragms.

Getting Started

To evaluate the A1308LUA-T, connect the 3-pin SIP to a stable 5V supply and monitor the analog output pin with a high-impedance ADC or oscilloscope. Ensure proper decoupling with a 0.1uF capacitor between VCC and GND as close to the sensor body as possible to maintain low-noise performance.

Also Consider

SS49E Honeywell - A low-cost, general-purpose linear Hall effect sensor for applications with less demanding temperature stability requirements.

Categories

Sensors > Magnetic Sensors