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High-Performance Power ICs and Hall-Effect Sensors
Hall-Effect Sensors 
As the world leader in Hall-effect sensors, Allegro offers a broad line of silicon-based products that serve many high-end applications within automotive and industrial electronics.
Allegro's sensors are based on Hall-effect technology, which allows contactless sensing devoid of mechanical wear, sensing either an external magnet or a ferrous object. Specifically, Hall-effect sensors are used for highly accurate gear-tooth sensing, direction detection, linear sensing, speed sensing, position sensing and contactless switching.
Hall-Effect Sensor Selection Guides
- Bipolar Hall-Effect Digital Switches
- BLDC Motor Drivers with Integrated Hall for Commutation
- Current Sensors
- Dual Element Speed and Direction Sensors for Ring Magnets
- Gear-Tooth Hall-Effect Speed Sensors
- Hall-Effect Digital Latches
- Highly Accurate, Analog Speed Sensors with Digital Outputs
- Linear Hall-Effect Sensors
- Omnipolar Hall-Effect Digital Switches
- Unipolar Hall-Effect Digital Switches