Honeywell Sensing & IoT Two Wire Speed Amr Sensor Honeywell VM721V1

The Honeywell VM721V1 is a 2-pin anisotropic magnetoresistive (AMR) speed sensor IC designed for detecting rotational speed of a ring magnet encoder target. It operates from -40°C to 150°C with a supply voltage range of 4.0 V to 24 V, depending on temperature, and supports zero speed operation without calibration. The device has a current-based output with a switching frequency up to 35 kHz, a 40% to 60% duty cycle, and rise and fall times of 8 µs maximum. It features integral EMC protection, ESD immunity to ±6 kV HBM, reverse polarity protection, and is insensitive to magnet pole size and mechanical vibration. The sensor is AEC-Q100 qualified and ISO-26262 conforming, with a welded lead design for direct mounting.