AS5115 Automotive Rotary Encoder IC

Description

The AS5115 is a redundant, contactless rotary encoder sensor for accurate angular measurement over a full turn of 360° and over an extended ambient temperature of -40°C to +150°C.

Based on an integrated Hall element array the angular position of a simple two-pole magnet is translated into analog output voltages. The angle information is provided by means of buffered sine and consine voltages. This approach gives maximum flexibility in system design, as it can be directly integrated into existing architectures and optimized for various applications in terms of speed and accuracy.

AS5115 Automotive Rotary Encoder IC AS5115 Automotive Rotary Encoder IC an SSI Interface is implemented for signal path configuration as well as a one time programmable register block (OTP), whcih allows the customer an adjustemnt of the signal path gain for different mechanical constraints and magnetic fields.

Key Features

• Contactless angular position encoding
• High precision analog output
• Buffered Sine and Cosine signals
• SSI Interface
• Low power mode
• Programmable output modes:
  • differential
  • single ended
  • common
• Programmable sensitivity
• Wide magnetic field input range: 20 - 80 mT
• Wide temperatur range: -40°C to +150°C
• Automotive qualified to AEC-Q100, grade 0
• SSOP-16 package

Applications

• Electronic power steering
• Contactless potentiometer
• Contactless rotary switches
• General industrial applications

Block diagram for AS5115 Automotive Rotary Encoder IC