360° Magnetic Angle Sensor

The KMT36H is a magnetic field sensor utilizing the anisotropic magneto resistance effect. Therefore the sensor is sensing the magnetic field direction rather than the magnetic field strength. The sensor contains three Wheatstone bridges rotated by 120°. 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.

SPECIFICATIONS
• AMR Sensor with 360° capability
• TDFN outline 2.5x2.5x0.75 mm3
• Three 120° phase-shifted signals
• Moderate field strength requirements

FEATURES
• Ideal for harsh environments due to
   magnetic sensing principle
• Contactless absolute angular measurement
   over 360°
• Accuracy better than +/- 0.5°
• Three bridge signals with 120° phase
   difference
• Tiny TDFN-housing 2.5 x 2.5 x 0.8 mm3

APPLICATIONS
• Absolute angle measurement
• Potentiometer replacement
• Motor motion control
• Camera positioning
• Robotics