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AS5170 High Resolution Position Sensor

High-resolution on-axis magnetic angular position sensor

Features

  • 12-bit resolution @90° minimum arc
  • Low output noise, low inherent INL
  • Magnetic stray field immunity
  • Functional safety, diagnostics, dual redundant chip version
  • AEC-Q100 Grade 0 qualified

Benefits

  • Resolves small angular excursion with high accuracy
  • Accurate angle measurement
  • Higher durability and lower system costs (no shield needed)
  • Enabler for safety critical applications
  • Suitable for automotive applications

Product parameters

Resolution [bit] 14 or 12
Interfaces
Output Analog ratiometric, PWM or SENT
Max. Speed [rpm]
Overvoltage Protection Yes
Redundant
Supply Voltage [V] 5.0
Temperature Range [°C] -40 to +150
Package SOIC8
Automotive Qualified

General Description

The AS5170 is a high-resolution angular position sensor for precise absolute angle measurement. The AS5170 is available with an analog output interface (AS5170A) or a digital output interface (AS5170B). The latter can be programmed as a PWM or a SENT-compliant output interface.
The AS5170 operates at a supply voltage of 5V, and the supply and output pins are protected against overvoltage up to +20V. In addition the supply pins are protected against reverse polarity up to -20V. The AS5170A and AS5170B are available in the SOIC 8 package.

With two decades of magnetic sensor system know-how, we have broad experience in selecting the most suitable magnets. ams experts recommend the following magnet suppliers.

This product suits for the following applications:

  • Brake and gas pedals
  • Throttle valve and tumble flaps
  • Steering angle sensors
  • Chassis ride
  • EGR
  • Fuel level measurement systems
  • 2/4WD switch
  • Contactless potentiometers

Tools

Title Category Headline Buy
AS5170AdapterBoard Application Board Adapter Board for AS5170
AS5170SocketBoard Application Board Socket Board for AS5170
SD4Y-PP Accessories Production Programmer SD4Y
RMH05-DK-XX Accessories Rotary Magnetic Holder
AS5xxx-EK-USB-PB Accessories Programming Board for AS5xxx

Technical Documents

Type Description Language
Datasheet Document version 1-05 English
Application Note Description of MagneticExtendedRange Feature English
Application Note Description of Linearization Feature English
Application Note AN5000 Magnet Selection Guide v1-04 English
Application Note Tape & Reel Packing Information English

Other Information

Type Description Language
Block Diagram AS5170 Block Diagram English
Factsheet Magnetic Position Sensors with System-in-Chip technology English
Factsheet Accurate Position Sensing in demanding Automotive Applications English
Factsheet Accurate Position Sensing in demanding Automotive Applications English
Other Product Document AS5170SocketBoard Image English
Other Product Document AS5170AdapterBoard Image English

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