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AK7401 - Rotary Position Sensor

General Description

The AK7401 is a monolithic Hall-Effect sensor IC that specializes in detecting rotation angle.

A contactless rotary position sensor is easily designed with a magnet.

The AK7401 is only sensitive to the magnetic flux density applied parallel to the IC surface.

Key Features

  • 360° Contactless Angle Sensor.
  • Angle Resolution : 12bit.
  • Angle Linearity Error: ±0.95°@25°C.
  • Over Voltage Protection: +16V @VDD pin.
  • Reverse Voltage Protection: -16V @VDD, VSS pin.
  • Automotive Temperature Range: -40°C to +150°C.
  • AEC-Q100 Compliant.
  • Output Interface: 3-wire SPI / PWM Push-Pull / PWM NMOS Open-Drain.
  • User Programmable.
  • Zero degree point.
  • Magnet rotation direction: CCW or CW.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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[AK7401] AK7401 Rotary Position Sensor IC 1. General Description The AK7401 is a monolithic Hall-Effect sensor IC that specializes in detecting rotation angle. A contactless rotary position sensor is easily designed with a magnet. The AK7401 is only sensitive to the magnetic flux density applied parallel to the IC surface. This is obtained through a magnetic concentrator which is mounted on the Hall-Effect elements. It is advantageous to accurate angular measurements against mechanical displacement. To detect the rotation angle of a magnet, the AK7401 provides a 12-bit angle data. The angle data output is available via PWM and serial data protocols. 2.