DESCRIPTION

· The ADA4571-2 is a 2-channel AMR sensor with integrated signal conditioning amplifiers and ADC drivers.

· It provides analog outputs indicating the angular position of the surrounding magnetic field.

· Each channel includes an AMR sensor and a variable gain instrumentation amplifier.

· The device delivers clean and amplified cosine and sine output signals per channel.

· The output voltage range is ratiometric to the supply voltage.

· The sensor operates within a homogeneous field parallel to the IC package plane.

· It is available in a 16-lead SOIC package.

FEATURES

· High precision, 2-channel, isolated AMR angle sensor for redundant systems.

· Angular range of 0° to 180° with a typical angular error of 0.1°.

· Analog sine and cosine outputs per channel with ratiometric output voltages.

· Low thermal and lifetime drift.

· SAR ADC or Σ-Δ ADC drive capable.

· MR bridge temperature compensation mode.

· Temperature range: −40°C to +150°C.

· Supply voltage (V DD) from 3 V to 5.5 V.

· Minimum phase delay.

· Qualified for automotive applications.

APPLICATIONS

· Permanent magnet synchronous motor (PMSM) control and positioning.

· Contactless angular measurement and detection.

· Magnetic angular position sensing.