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AS5161 Rotary Position Sensor

12-Bit Rotary Position Sensor With PWM Output and Overvoltage Protection

The AS5161 is a contactless Hall-based magnetic position sensor for very accurate angular measurement over a full turn of 360°. It is a compact integrated solution which provides the absolute angle measurement with a resolution of 0.09° over a full revolution as PWM output signal. The internal 14-bit core of the AS5161 enables a fine programming of the start and stop positions with a resolution of 0.02° to allow the finest system mechanical adjustments.

AS5161 a contactless Hall-based magnetic position sensor

Key Benefits

  • Resolves smaller angular excursions
  • Large air gap, low cost magnets
  • Increased durability


  • Pedal position sensing
  • Throttle position sensing
  • Height control in chassis ride
  • Transmission gearbox position sensor
  • Valve position sensing
  • Tumble-flaps

AS5161 Product Facts

Resolution 14-bit / 12-bit
Interfaces SPI
Max speed [rpm] 28000
Overvoltage protection [ ]
Supply voltage [V] 3.3 or 5.0
Temperature range [°C] -40 to +150
Package TSSOP-14
Automotive qualified