AH1822 switch equivalent, micropower omnipolar hall-effect sensor switch.
* Micropower Operation
* Operation with Magnetic Field of Either North or South Pole
(Omnipolar)
* 2.5V to 5.5V Battery Operation
* Chopper Stabilized
* Cover Switch in Clam-Shell Cellular Phones
* Cover Switch in Notebook PC/PDA
* Contact-Less Switch in Cons.
AH1822 is comprised of two Hall effect plates and an open-drain output driver, mainly designed for battery-operation, hand-held equipment (such as Cellular and Cordless Phone, PDA). The total power consumption in normal operation is typically 24µW wi.
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