
austriamicrosystems AG
General Description
The AS5161 is a contactless magnetic angle position sensor for accurate angular measurement over a full turn of 360°. A sub range can be programmed to achieve the best resolution for the application. It is a system-on-chip, combining integrated Hall elements, analog front end, digital signal processing and best in class automotive protection features in a single device.
KEY FEATUREs
■ 360º contactless high resolution angular position sensing
■ User programmable start and end point of the application region
+ linearization.
■ User programmable clamping levels and programming of the
transition point.
■ Digital PWM output
- Short circuit monitor
- High driving capability for resistive and capacitive loads
■ Wide temperature range: - 40°C to + 150°C
■ Small Pb-free package: SOIC 8.
■ Broken GND and VDD detection over a wide range of different
load conditions.
■ Saw tooth mode 1,2,3,4 slopes per revolution
Benefits
■ Unique fully differential patented solution
■ Best protections for automotive applications
■ Easy to program
■ Additional linearization points for output characteristic
■ Ideal for applications in harsh environments due to contactless
position sensing
■ Robust system, tolerant to magnet misalignment, air gap
variations, temperature variations and external magnetic fields
■ High inherent accuracy
■ Broken GND and VDD detection for all external load cases
APPLICATIONs
The AS5161 is ideal for automotive applications like throttle and
valve position sensing, gearbox position sensor, tumble flap, chassis
height level, pedal position sensing and contactless potentiometers.