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AH1822 - MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR SWITCH

General 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.

Key Features

  • 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) Note: 4.

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Other Datasheets by Diodes Incorporated

Part Number Description
AH1801 ULTRA-SENSITIVE HALL EFFECT SWITCH
AH1802 ULTRA-SENSITIVE OMNIPOLAR HALL-EFFECT SENSOR SWITCH
AH1803 ULTRA-SENSITIVE HALL EFFECT SWITCH
AH1804 MICROPOWER OMNIPOLAR HALL EFFECT SENSORSWITCH
AH1806 HIGH SENSIVITY MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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AH1822 MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR SWITCH 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. Either north or south pole of sufficient strength will turn the output on. The output will be turned off under no magnetic field. While the magnetic flux density (B) is larger than operating point (Bop), the output will be turned on (low), the output is held until B is lower than release point (Brp), then turned off.