AS1801B Omnipolar Detection High Performance Low Power Hall-Effect Sensor IC
●Using low power CMOS process, the AS1801B is designed for low power, high performance omnipolar detection hall-effect application, such as cover switch, contactless switch, solid state switch and lid close sensor etc battery operation. The hall IC integrated an on-chip hall voltage generator for magnetic sensing, a comparator that amplifiers the hall voltage, a Chopper amplifier, a Schmitt trigger to provide switching hysteresis for noise rejection, and a complementary output.
●The total power consumption of AS1801B is typically less than 1.5uA at 1.8V power supply. AS1801B is designed to respond to alternating North and South poles. When the magnetic flux density (B) is larger than operate point (BOP), the output will be turned on (low), the output is held until the magnetic flux density (B) is lower than release point (BRP), then turn off (high).
●The device is available in DFN1216-4L Package and is rated over the -40°C to 85°C. The all packages are RoHS and Green compliant.
■Features
●Input Voltage Range : 1.60V to 3.65V
●Micro-power consumption ideal for battery power applications
●Omnipolar Operation, easy to use as output
●Very high sensitivity hall sensor
●Low Power CMOS process technology
●Chopper stabilization amplifier stage
●Magnetic Sensitivity (typical) BOPS=±30Gauss, BRPS=±20Gauss
●Good RF noise immunity
●No need pull-up resistor
●Small Solution Size
●RoHS & Green Compliant
●DFN1216-4L Package
●-40°C to +85 °C Temperature Range
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Omnipolar Detection High Performance Low Power Hall-Effect Sensor IC 、 Magnetic Sensor IC |
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[ omnipolar detection hall-effect application ][ Cover switch ][ clam-shell cellular phones ][ Notebook ][ PC ][ PAD ][ Contact-less switch ][ consumer products ][ Solid State Switch ][ Handheld Wireless Handset Awake Switch ][ battery-powered device ][ reed switch ][ low duty cycle applications ][ DV ][ DSC ][ White Goods ] |
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Datasheet |
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Please see the document for details |
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DFN1216-4L |
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English Chinese Chinese and English Japanese |
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25, Aug. 2016 |
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Version 1.1 |
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258 KB |
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