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AS5048B Rotary Position Sensor

14-Bit Rotary Position Sensor with Digital Angle (interface) and PWM Output

The AS5048B 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 I2C 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 (I2C).

Diagram of the as5048B 14-bit rotary position sensor

Key Features

  • Contactless absolute angle position measurement
  • 14-bit resolution (16384 positions/revolution)
  • In system programmable zero position via I2C 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)

Applications

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

AS5048B Product Facts

Resolution 14-bit
Interfaces I2C
Output Digital Angle (Interface) / PWM
Max speed [rpm]
Overvoltage protection [ ]
Redundant
Supply voltage [V] 3.3 or 5.0
Temperature range [°C] -40 to +125
Package TSSOP-14
Automotive qualified