We offer the most comprehensive portfolio of magnetic speed sensors ICs, covering the full range of speed and speed with direction, two- and three-wire interface, magnetic encoder (ring magnet) and gear tooth sensing, Hall and GMR technology, and ASIL-compliant options for transmission, wheel speed, engine, e-motors, and many more encoder and gear tooth sensing applications.
Our innovative Hall-effect and GMR technologies provide the most robust and reliable gear tooth and ring magnet speed sensing in the world.
Thanks to decades of application and algorithm experience and close collaboration with OEMs, we develop application-specific speed sensor ICs that are optimized for your target applications—improving safety, reliability, and performance.
Our magnetic speed sensors offer:We provide fully integrated IC solutions for EMC protection and true power-on state (TPOS). Optional back-biased magnets simplify your design while improving performance.
With high performance and excellent edge accuracy, our fully integrated ICs are also highly flexible. We offer optimized solutions for engines in 2-wheelers and advanced solutions that are essential for start-stop engines.
Working on something other than a vehicle? Our portfolio provides optimized speed sensor IC solutions for many non-automotive applications.
Our ICs are ready for any challenge presented by fuel-efficient 6 to 10-speed transmissions, providing you with industry-leading vibration immunity and dynamic air gap capability.
Our patented, best-in-class GMR technology provides low jitter and high air gap over the widest installation tolerance.
Allegro ICs Based on Giant Magnetoresistance (GMR) »
Transmission Speed and Direction Sensor IC for Gear Tooth Sensing
The Future of Automotive Wheel Speed Sensing with GMR
Transmission Gear Tooth Sensing
Differential Hall-Effect Sensors for Two-Wheelers
Target Design for Hall Transmission Sensors
Fundamental Properties of Speed Sensors
Ring Magnet Speed Sensing for Electronic Power Steering »
Allegro ICs Based on Giant Magnetoresistance (GMR) »
Impact of Magnetic Relative Permeability of Ferromagnetic Target on Back-Biased Sensor Output »