AH1884-ZG-7

The AH1884-ZG-7 from Diodes Incorporated is a micropower, ultra-sensitive Hall Effect switch. It is designed for battery-operation and hand-held equipment, offering a total operation power as low as 15uW at a 1.8V supply.

This device features dual CMOS output drivers and can be activated by either the north or south pole of a magnetic field. The output turns on when the magnetic flux density exceeds the operate point (Bop) and remains on until the flux density drops below the release point (Brp). It operates within a supply voltage range of 1.65V to 3.3V and maintains functionality across an operating temperature range of -40°C to 85°C.

The AH1884-ZG-7 is housed in a compact SOT-553 package, suitable for surface mount applications. Its features include chopper stabilization for superior temperature stability, extremely low switch-point drift, and insensitivity to physical stress. It also offers good RF noise immunity and ESD protection greater than 4KV in human body mode.

Applications for this Hall Effect switch include cellular phones, PDAs, and cordless phones, where low power consumption and high sensitivity are critical.