Description
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 with a 3V power source.
• Micropower Operation
• Operation with Magnetic Field of Either North or South Pole (Omnipolar)
• 2.5V to 5.5V Battery Operation
• Chopper Stabilized
• Superior Temperature Stability
• Extremely Low Switch-Point Drift
• Insensitive to Physical Stress
• Good RF Noise Immunity
• -40°C to +85°C Operating Temperature
• ESD (HBM) > 5kV
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
APPLICATIONs
• Cover Switch in Clam-Shell Cellular Phones
• Cover Switch in Notebook PC/PDA
• Contact-Less Switch in Consumer Products