A1174 - Allegro MicroSystems

A1174 Ultrasensitive Hall Effect Latch

The A1174 is a micro-power, Hall-effect latch for use in portable devices that employ rotational detection systems, and have a power supply voltage between 1.65 and 3.5 V. The device has a single push-pull output structure and requires no external pull-up resistor for reliable operation. When a sufficient positive magnetic field is present on the device, the.

Features

▪ Micro-power latch operation ▪ 1.65 to 3.5 V battery operation ▪ Push-pull output eliminates the need for an external pullup resistor ▪ User configured, internally or externally controlled sample and sleep periods ▫ Floating the two clock pins results in the use of a fixed sampling clock internal to the sensor ▫ Toggling the clock pins allows the user to control the sampling and sleep times of the sensor for extreme low power operation ▪ External control of the clock pins allows the user to implement synchronous sampling of multiple sensors in direction detection systems ▪ Chopper stabilizati.