3518 Datasheet Ratiometric / Linear Hall-effect Sensors

Manufacturer: Allegro Micro Systems

3518 ratiometric / linear hall-effect sensors by Allegro Micro Systems - Datasheet Preview

Datasheet Details

Part number	3518
Manufacturer	Allegro Micro Systems
File Size	150.94 KB
Description	Ratiometric / Linear Hall-effect Sensors
Download	3518 Download (PDF)

Overview

3517 AND 3518 RATIOMETRIC, LINEAR HALL-EFFECT SENSORS FOR HIGH-TEMPERATURE OPERATION The A3517xUA and A3518xUA are sensitive, temperature-stable linear Hall-effect sensors with greatly improved offset characteristics.

Ratiometric, linear Hall-effect sensors provide a voltage output that is proportional to the applied magnetic field and have a quiescent output voltage that is approximately 50% of the supply voltage.

These magnetic sensors are ideal for use in linear and rotary position sensing systems in the harsh environments of automotive and industrial applications over extended temperatures to -40°C and +150°C.

Key Features

an output sensitivity of 5 mV/G while the A3518xUA has an output sensitivity of 2.5 mV/G. See the Magnetic Characteristics table for complete, individual device parametrics. Each BiCMOS monolithic circuit integrates a Hall element, improved temperature-compensating circuitry to reduce the intrinsic sensitivity drift of the Hall element, a small-signal high-gain amplifier, and a rail-to-rail lowimpedance output stage. A proprietary dynamic offset cancelation technique, with an internal highfreque.

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3516	Linear Hall-effect Sensors