AS5070 - 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
  • Diagnostics

Benefits

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

Product parameters

Resolution [bit] 14 or 12
Interfaces UART
Output Analog; PWM; SENT
Max. Speed [rpm]
Overvoltage Protection Yes
Redundant No
Supply Voltage [V] 5.0
Temperature Range [°C] -40 to +150
Package SOIC8
Automotive Qualified No

General Description

The AS5070 is a high-resolution angular position sensor for precise absolute angle measurement. The AS5070 is available with an analog output interface (AS5070A) or a digital output interface (AS5070B). The latter can be programmed as a PWM or a SENT-compliant output interface.
Based on a Hall sensor technology, this device measures the orthogonal component of the flux density (Bz) over a full-turn rotation and compensates for external stray magnetic fields with a robust architecture based on a 14-bit sensor array and analog front-end (AFE). A sub-range can be programmed to achieve the best resolution for the application. To measure the angle, only a simple two-pole magnet rotating over the center of the package is required. The magnet may be placed above or below the device. The absolute angle measurement provides an instant indication of the magnet’s angular position. The AS5070 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. 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.

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This product suits for the following applications:

  • Rotary button angle sensors
  • Liquid-level measurement systems
  • Contactless potentiometers

Tools

Title Category Headline Buy
RMH05-DK-XX Accessories Rotary Magnetic Holder
AS5xxx-EK-USB-PB Accessories Programming Board for AS5xxx
AS5070SocketBoard Application Board Socket Board for AS5070
AS5070AdapterBoard Application Board Adapter Board for AS5070
SD4Y-PP Accessories Production Programmer SD4Y

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