ADA4570
RECOMMENDED FOR NEW DESIGNSIntegrated AMR Angle Sensor and Signal Conditioner with Differential Outputs
- Part Models
- 6
- 1ku List Price
- Starting From $1.28
Part Details
- Contactless angular measurement
- High precision 180° angle sensor
- Typical angular error of ±0.1°
- Low output noise of 850 μV rms
- Sine and cosine differential outputs
- Ratiometric analog voltage outputs
- Negligible hysteresis
- SAR or Σ-Δ ADC compatible
- Temperature compensated AMR bridge
- Industrial temperature range: −40°C to +125°C
- Automotive temperature range: −40°C to +150°C
- EMI resistant
- Fault diagnostics
- VDD from 2.7 V to 5.5 V
- Minimal phase error of 0.85° at 30,000 rpm
- AEC-Q100 qualified for automotive applications
- Single chip solution
- Available in an 8-lead SOIC package
The ADA4570 is an anisotropic magnetoresistive (AMR) sensor with integrated signal conditioning amplifiers and analog-to-digital converter (ADC) drivers. The ADA4570 produces two differential analog outputs that indicate the angular position of the surrounding magnetic field.
The ADA4570 consists of two die within one package, an AMR sensor, and a fixed gain instrumentation amplifier. The ADA4570 delivers amplified differential cosine and sine output signals, with respect to the angle, when the magnetic field is rotating in the x-axis and the y-axis (x-y) plane. The output voltage range is ratiometric to the supply voltage.
The sensor contains two Wheatstone bridges, at a relative angle of 45° to one another. A complete rotation of a dipole magnet produces two periods on the sinusoidal outputs. Therefore, the magnetic angle (α) calculated from the SIN and COS differential outputs represents the physical orientation of the magnet with respect to the ADA4570 in the 0° to 180° measurement range. Within a homogeneous field in the x-y plane, the output signals of the ADA4570 are independent of the physical placement in the z direction (air gap).
The ADA4570 is available in an 8-lead SOIC package.
APPLICATIONS
- Absolute position measurement (linear and angle)
- Brushless dc motor control and positioning
- Actuator control and positioning
- Contactless angular measurement and detection
- Magnetic angular position sensing
Documentation
Data Sheet 1
User Guide 1
Application Note 1
Video 1
3rd Party Solutions 1
Solutions Bulletin & Brochure 2
Analog Dialogue 1
Rarely Asked Question Page 1
Thought Leadership 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 |
|---|---|---|---|
| ADA4570BRZ | 8-Lead SOIC | ||
| ADA4570BRZ-R7 | 8-Lead SOIC | ||
| ADA4570BRZ-RL | 8-Lead SOIC | ||
| ADA4570WHRZ | 8-Lead SOIC | ||
| ADA4570WHRZ-R7 | 8-Lead SOIC | ||
| ADA4570WHRZ-RL | 8-Lead SOIC |
This is the most up-to-date revision of the Data Sheet.
Evaluation Kits
Integrated AMR Angle Sensor and Signal Conditioner with Differential Outputs
Resources
Software
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