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Diodes Incorporated AH4930Q Automotive 3D Magnetic Linear Hall Sensor
Featuring I2C interface
The AH4930Q automotive 3D magnetic chip by Diodes Incorporated is a miniature monolithic sensor IC sensitive to the three orthogonal components of the flux density applied to the IC. On-chip integrated temperature sensor data is available for system functions such as junction temperature indication and temperature compensation of magnetic field measurement. A precision analog signal-path along with integrated ADC digitizes the measured analog magnetic field values, and this allows the AH4930Q with the correct magnetic circuit to decode the absolute position of any moving magnet. With its magnetic field detection in x, y, and z-direction the sensor reliably measures three-dimensional, linear and rotation movements.
The AH4930Q measurement data can be read over I2C bus. The sensor is runtime programmable and offers on-chip temperature compensation of the measured units. The selectable power mode control unit enables micro-power and continuous measurement functionality. Applications include joysticks, control elements (white goods, multifunction knops), or electric meters (anti-tampering) and any other application that requires accurate angular measurements or low power consumptions.
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