AS5145A-HSSM Sensor IC 12-Bit Programmable Magnetic Rotary Encoder SSOP-16

AS5145A-HSSM is a contactless magnetic rotary encoder for accurate angular measurement over a full turn of 360 degrees. It is a system-on-chip, combining integrated Hall elements, analog front end and digital signal processing in a single device. To measure the angle, only a simple two-pole magnet, rotating over the center of the chip, is required. The magnet can be placed above or below the IC.

• Contactless high resolution rotational position encoding over a full turn of 360 degrees
• Two digital 12-bit absolute outputs:
  • Serial interface
  • Pulse width modulated (PWM) output
• Three incremental outputs
• Quadrature A/B/I (10 or 12 bit) and Index output signal (preprogrammed versions available AS5145A for 10-bit and AS5145B for 12-bit)
• User programmable zero position
• Failure detection mode for magnet placement, monitoring, and loss of power supply
• Red-Yellow-Green indicators display placement of magnet in Z-axis
• Serial read-out of multiple interconnected AS5145 devices using Daisy Chain mode
• Tolerant to magnet misalignment and gap variations
• Wide temperature range: -40ºC to +150ºC
• Fully automotive qualified to AEC-Q100, grade 0
• Small Pb-free package: SSOP 16 (5.3mm x 6.2mm)

• Industrial applications like contactless rotary position sensing and robotics
• Automotive applications:
  • Steering wheel position sensing
  • Transmission gearbox encoder
  • Head light position control
  • Torque sensing
  • Valve position sensing
  • Replacement of high end potentiometers