ADA4571-2
RECOMMENDED FOR NEW DESIGNSDual Integrated AMR Angle Sensor and Signal Conditioner
- Part Models
- 1
- 1ku List Price
- Starting From $3.12
Part Details
- High precision, 2-channel, isolated AMR angle sensor for redundant systems
- Angular range of 0° to 180°
- Typical angular error of 0.1°
- Analog sine and cosine outputs per channel
- Ratiometric output voltages Low thermal and lifetime drift
- Successive approximation register (SAR) analog-to-digital converter (ADC) or Σ-Δ ADC drive capable
- Magnetoresistive (MR) bridge temperature compensation mode
- Temperature range: −40°C to +150°C
- Supply voltage (VDD) from 3 V to 5.5 V
- Minimum phase delay
- Available in a 16-lead SOIC package
- Qualified for automotive applications
The ADA4571-2 is a 2-channel anisotropic magneto resistive (AMR) sensor with integrated signal conditioning amplifiers and ADC drivers. The device produces analog outputs that indicate the angular position of the surrounding magnetic field.
Each channel consists of two die within one package: an AMR sensor and a variable gain instrumentation amplifier. The ADA4571-2 delivers clean and amplified cosine and sine output signals per channel related to the angle of a rotating magnetic field. The output voltage range is ratiometric to the supply voltage.
Each sensing channel contains two separated wheatstone bridges at a relative angle of 45° to one another. A rotating magnetic field parallel to the plane of the IC package delivers two sinusoidal output signals, with the double frequency of the angle, α, between the sensor and the magnetic field direction. Within a homogeneous field parallel to the plane of the IC package, the output signals are independent of airgap between the sensor and the magnet.
The ADA4571-2 is available in a 16-lead SOIC package.
PRODUCT HIGHLIGHTS
- Contactless angular measurement.
- Measures magnetic field direction rather than field intensity.
- Minimum sensitivity to air gap variations.
- Large working distance.
- Excellent accuracy, even for weak saturation fields.
- Minimal thermal and lifetime drift.
- Negligible hysteresis.
- Single-chip solution.
APPLICATIONS
- Permanent magnet synchronous motor (PMSM) control and positioning
- Contactless angular measurement and detection
- Magnetic angular position sensing
Documentation
Data Sheet 1
User Guide 1
Application Note 1
Solutions Bulletin & Brochure 2
Analog Dialogue 2
Thought Leadership Page 1
Rarely Asked Question Page 1
Webcast 3
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADA4571-2WHRZ-RL | 16-Lead SOIC |
This is the most up-to-date revision of the Data Sheet.
Tools & Simulations
Virtual Eval - BETA
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Open ToolLTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
ADA4571-2 Evaluation Board
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