The KMT36H series anisotropic magnetoresistive sensor contains three Wheatstone bridges that are rotated by 120°, each providing a phase-shifted signal. This series sensor is capable of measuring a full 360° by utilizing an additional magnetic field generated by a planar coil integrated on the chip.
Position Sensor Product Type :Magnetic Angle Sensor
Sensor Package :TDFN2.5x2.5
Sensing Range (°):0 – 360
Typical Signal Amplitude (mV/V):11
Typical Operating Voltage (V):5
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Overview
A rotating magnetic field (typical strength 25 kA/m in the sensor plane) will result in three sinusoidal output signals with a period of 180°, phase shifted by 60° field angle. By use of a modified ATAN algorithm the field angle can be calculated with high accuracy. As an unique feature, the KMT36H is able to measure full 360° by utilizing an additional magnetic field which is generated by a planar coil that is integrated on the chip. The 180°/360° determination is done by a simple sign distinction and may be computed periodically or only once at power up.
Benefits
Magnetic sensing principle that is ideal for harsh environments
Contactless absolute angular measurement over 360°