Current Sensor ICs
Magnetic Digital Position Sensor ICs
Magnetic Linear and Angular Position Sensor ICs
Magnetic Speed Sensor ICs
Motor Driver and Interface ICs
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Wheel Speed Sensor ICs

Wheel Speed Sensor ICs

wheel sensor, abs wheel speed sensor

Allegro offers a selection of wheel speed sensors optimized for today¡¯s demanding ABS applications.  Solutions are available for either ferrous targets or magnetic encoder rings, and for speed or speed-and-direction sensing capability. Allegro¡¯s wheel speed sensors provide optimized performance in the presence of harsh automotive conditions.  Advanced peak-detection algorithms provide robustness against vehicle dynamics, such as hard cornering, and micro-oscillations in static modes. 

Allegro¡¯s solutions offer over a decade of ABS specific IC designs based on the industry¡¯s top professionals and vehicle manufacturers' expertise. These sensor ICs also incorporate over a decade of lessons learned through the harsh, automotive scrutiny of in-vehicle testing and production. Allegro¡¯s wheel speed sensors are offered in two current range options each using a two-wire, current output protocol. Direction information is offered in a two-wire, pulse width output protocol.

Wheel Sensor ICs Selection Guide

Part Number Supply Voltage (V) Output Type Power-On State Specified Air Gap / Operating Signal Range Key Spec Min. Speed Applications Packages
ATS642 4 to 24 2-wire High (current) 0.5 to 3 mm Duty cycle Zero speed ABS SH
ATS657 4 to 18 2-wire PWM Low (current) 0.4 to 2.2 mm Direction Detection Zero speed Transmission SH
ATS682 4 to 24 2-wire High (current) 0.5 to 3 mm Duty cycle Zero speed ABS SH
A1642 4 to 24 2-wire High (current) 20 to 1000 G Duty cycle Zero speed ABS KN
Temperature range code: L = -40¡ãC to 150¡ãC
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