Summary of ADA4570 ANISOTROPIC MAGNETORESISTIVE (AMR) SENSORS
ADI’s ADA4570 is an AMR angle sensor with integrated signal conditioning that provides four radiometric analog outputs (differential cosine and sine pairs) representing the angular position of a magnetic field. It combines an AMR sensor die and a fixed-gain instrumentation amplifier die in one package, delivering clean, amplified differential signals suitable for precise angle measurement across a wide VIN range and low quiescent current for standby operation.
Parts used in the ADA4570 project:
- ADA4570 AMR sensor with integrated instrumentation amplifier (single package containing two die)
- AMR sensor die
- Fixed gain instrumentation amplifier die
ADI’s ADA4570 is an AMR sensor with integrated signal conditioning amplifiers and ADC drivers. It produces four 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. It delivers clean and amplified differential cosine and sine output signals related to the angle of a rotating magnetic field. The output voltage range is radiometric to the supply voltage.
Features
- Boost and dual buck synchronous controllers allow all outputs to remain in regulation during automotive restart or cold crank
- VIN range of 4.5 V to 40 V and operates down to 1 V after startup
- Low 14 µA operating quiescent current extends the battery run time during a standby condition
Read more: ADA4570 ANISOTROPIC MAGNETORESISTIVE (AMR) SENSORS
- What outputs does the ADA4570 produce?
The ADA4570 produces four analog outputs: differential cosine and sine pairs indicating angular position, radiometric to the supply voltage. - What internal components are in the ADA4570 package?
The package contains two die: an AMR sensor die and a fixed gain instrumentation amplifier die. - How are the ADA4570 outputs referenced to supply?
The outputs are radiometric to the supply voltage. - What is the VIN operating range for ADA4570?
The ADA4570 has a VIN range of 4.5 V to 40 V and can operate down to 1 V after startup. - Does the ADA4570 include signal conditioning?
Yes, it includes integrated signal conditioning amplifiers and ADC drivers. - What is the quiescent current of the ADA4570?
The ADA4570 has a low operating quiescent current of 14 µA. - Can ADA4570 maintain outputs during automotive restart or cold crank?
Yes, boost and dual buck synchronous controllers allow all outputs to remain in regulation during automotive restart or cold crank.
