General Description
The AS5045 is a contactless magnetic rotary encoder for accurate angular measurement over a full turn of 360°. It is a system-on-chip, combining integrated Hall elements, analog front end and digital signal processing in a single device.

KEY FEATUREs
ƒ Contactless high resolution rotational position encoding over a full turn of 360 degrees
ƒ Two digital 12bit absolute outputs:
   - Serial interface and
   - Pulse width modulated (PWM) output
ƒ User programmable zero position
ƒ Failure detection mode for magnet placement monitoring and loss of power supply
ƒ “red-yellow-green” indicators display placement of magnet in Z-axis
ƒ Serial read-out of multiple interconnected AS5045 devices using Daisy Chain mode
ƒ Tolerant to magnet misalignment and airgap variations
ƒ Wide temperature range: - 40°C to + 125°C
ƒ Small Pb-free package: SSOP 16 (5.3mm x 6.2mm)

APPLICATIONs
ƒ Industrial applications:
  - Contactless rotary position sensing
  - Robotics
ƒ Automotive applications:
  - Steering wheel position sensing
  - Transmission gearbox encoder
  - Headlight position control
  - Torque sensing
  - Valve position sensing
ƒ Replacement of high end potentiometers