Analog Devices ADMT4000 True Power-On Multi-Turn Position Sensor is a magnetic turn count sensor capable of recording the number of rotations of a magnetic system even while the device is powered down. On power-up, the device can be interrogated to report the absolute position of the system through the Serial-Peripheral Interface (SPI). The Analog Devices ADMT4000 counts up to 46x turns of an external magnetic field, incrementing the absolute position in a clockwise direction.
Analog Devices Inc. ADMT4000 True Power-On Multi-Turn Position Sensor
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