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AS5048A High-Resolution Position Sensor

14-bit rotary position sensor with digital angle (interface) and PWM output


  • 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


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

Product parameters

Resolution [bit] 14
Interfaces SPI
Output Digital angle (interface), PWM
Max. Speed [rpm]
Overvoltage Protection
Supply Voltage [V] 3.3 or 5.0
Temperature Range [°C] -40 to +150
Package TSSOP-14
Automotive Qualified

General Description

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).

Magnets cannot be ordered at ams directly. Please find a list of recommended magnet suppliers.

This product suits for the following applications:

  • Angle sensor
  • Replacement of potentiometers
  • Factory and process automation
  • Robotics


Title Category Headline Buy
AS5048DemoKit Application Board Demo Kit for AS5048
AS5048AAdapterBoard Application Board Adapter Board for AS5048A
AS5048AMotorBoard Application Board Motor Board for AS5048A
AS5xxxUniversalConnectorBoard Accessories Universal Connector Board for AS5xxx
USBI&PBox Accessories USB I&P Box for I2C/SPI
RMH05-DK-XX Accessories Rotary Magnetic Holder


Type Description Language
Software Eval SW 1-0-6-0 English
Software Software V1.4.14 (USB I&P Box) English

Technical Documents

Type Description Language
Application Note AS5048B I2C Slave Address Programming English
Application Note Tape & Reel Packing Information English
Block Diagram AS5048A Block Diagram English
Datasheet AS5048A/B, Document version 1-11 English
Factsheet 14-位分辨率 Chinese
Factsheet 14-bit Resolution English
Other Product Document AS5048AAdapterBoard Image English
Other Product Document AS5048AEvalKit Image English
Other Product Document AS5048DemoKit Image English
Other Product Document USBI&PBox Image English
Other Product Document AS5xxxUniversalConnectorBoard Image English
User Guide AS5048 Motor Board English
User Guide AS5048 Demoboard English
User Guide Adapter board English
User Guide AS5xxx Rotary Magnet Holder English

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