ams AG - global leader in the design and manufacture of high performance analog ICs (integrated circuits)

AS5147P High Speed Position Sensor

14-bit On-Axis Magnetic Rotary Position Sensor with 12-bit Binary Incremental Pulse Count

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The AS5147P is a high-resolution rotary position sensor for high speed (up to 28krpm) angle measurement over a full 360 degree range. This new position sensor is equipped with a revolutionary integrated dynamic angle error compensation (DAEC™) with almost 0 latency.
The robust design of the device suppresses the influence of any homogenous external stray magnetic field. A standard 4-wire SPI serial interface allows a host microcontroller to read 14-bit absolute angle position data from the AS5147P and to program non-volatile settings without a dedicated programmer.
Incremental movements are indicated on a set of ABI signals with a maximum resolution of 4096 steps / 1024 pulses per revolution. The product is defined as SEooC (Safety Element out of Context) according ISO26262 including FMEDA, safety manual and third party qualification.

Key Features

  • DAEC™ Dynamic angle error compensation
  • Immune to external stray magnetic field
  • 14-bit core resolution
  • Maximum speed up to 28.000 rpm
  • Developed per ISO 26262 SEooC

Key Benefits

  • Eliminates angle measurement lag at high RPMs
  • Lower system costs (no shielding)
  • High resolution for motor & position control
  • No programmer needed (via SPI command)
  • Enables ASIL-x system safety level compliance

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

Additional Information

  • Safety Critical Automotive Systems (EPS, Brake, etc.)
  • Resolver replacement
  • Discrete Hall commutation feedback replacement
  • Servo motor position control
  • BLDC/PMSM motor commutation (Pumps, DCT, Starter, Alternator, Wiper, etc.)