as5048a rotary position sensor

AS5048A: 14-bit Rotary Position Sensor with Digital Angle (interface) and PWM Output

The AS5048A is a 14-bit rotary position sensor (previously known as encoder) for absolute angular measurement and with a PWM (=pulse width modulation) output over a full turn of 360° based on contactless magnetic sensor technology. This device fits perfectly for on-axis applications where a simple 2-pole magnet rotates above or below the sensor IC and the zero position can be programmed into the device simply with a SPI command. The absolute magnet angular position is measured with a resolution of 14 bit = 16384 positions per revolution and it is provided as a digital value on the serial interface (SPI).

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Key Features

  • Contactless absolute angle position measurement
  • 14-bit resolution (16384 positions/revolution)
  • In system programmable zero position via SPI command
  • Immune to external magnetic stray fields

Key Benefits

  • Highest reliability and durability in harsh environments
  • High precision
  • Great flexibility during assembly no external programmer needed
  • Lower material cost (no magnetic shielding needed)


  • Angle Sensor
  • Replacement of potentiometers
  • Factory and process automation
  • Robotic joint position


OutputDigital Angle (Interface), PWM
Max speed [rpm]
Overvoltage protection [ ]
Supply voltage [V]3.3 or 5.0
Temperature range [°C]-40 to +125
Automotive qualified