Sensors – AH1902/3: Micropower Omnipolar/Unipolar Hall Effect Switches

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AH1902/3: Micropower Omnipolar/Unipolar Hall Effect Switches
The AH1902 and AH1903 are low voltage high performance micropower omnipolar and programmable unipolar/omnipolar function hall effect switch ICs. Optimized to operate over the supply range of 1.6V to 3.6V and consuming an average current of 4.3uA typical at 1.8V, they are designed for consumer equipment ranging from portable and battery-powered to home appliances and industrial applications. Based on chopper stabilized architecture and a ESD rating of 8kV, they provide a reliable and robust solution over the whole operating range.
FEATURES
• Unipolar or omnipolar operation
• High sensitivity
• Chopper stabilized design provides
• Minimal switch point drift
• No external pull-up resistors required
• Good RF noise immunity
• 1.6V to 3.6V supply voltage
• Micropower operation
• Superior temperature stability
• Enhanced immunity to physical stress
• -40°C to +85°C operating temperature

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