A3212ELHLT Datasheet PDF - Allegro MicroSystems

MICROPOWER, ULTRA-SENSITIVE HALL-EF FECT SWITCH

●The A3212 integrated circuit is an ultra-sensitive, pole in de pendent Hall effect switch with a latched digital output. This sensor is es pe cial ly suited for operation in battery-operated, hand-held equip ment such as cellular and cordless tele phones, pagers, and palmtop com put ers. A 2.5 volt to 3.5 volt operation and a unique clocking scheme reduce the average operat ing power requirements to less than 15 µW with a 2.75 volt supply.

●FEATURES

●■ Micropower Operation

●■ Operation with North orSouth Pole

●■ 2.5 V to 3.5 V Battery Operation

●■ Chopper Stabilized

●   Superior Temperature Stability

●   Extremely Low Switch-Point Drift

●   Insensitive to Physical Stress

●■ ESD Protected to 5 kV

●■ Sol id-State  Reliability

●■ Small Size

●■Easily Manufacturable with Magnet Pole Independence