AS1803 Omnipolar Detection High Performance Hall-Effect Sensor IC
●Using low power CMOS process, the AS1803 is designed for 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.
●AS1803 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 SOT23-3L, SIP-3L and DFN1014-4L package and is rated over the -40°C to 125°C. The all packages are RoHS and Green compliant.
■Features
●Input Voltage Range : 2.2V to 5.0V
●Operation Frequency: 20kHZ(min)
●Omniplar Operation, easy to use as output
●Very high sensitivity hall sensor
●Low Power CMOS process technology
●Chopper stabilization amplifier stage
●Magnetic Sensitivity (typical)
●BOP=±18Gauss, BRP=±10Gauss
●Good RF noise immunity
●No need pull-up resistor
●Small Solution Size
●RoHS & Green Compliant
●SOT23-3L, SIP-3L and DFN1014-4L Packages
●-40°C to +125 °C Temperature Range
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AS1803 、 AS1803XXX 、 AS1803STRN 、 AS1803MBN 、 AS1803DRN 、 AS1803STRY 、 AS1803MBY 、 AS1803DRY |
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Omnipolar Detection High Performance Hall-Effect Sensor IC 、 Magnetic Sensor ICs |
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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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SOT23-3L;SIP-3L;DFN1014-4L |
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English Chinese Chinese and English Japanese |
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30, May 2022 |
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Version 1.1 |
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300 KB |
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