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UH4921 - DYNAMIC DIFFERENTIAL HALL EFFECT SENSOR

General Description

The differential Hall Effect sensor UTC UH4921 provides a superior stability and a high sensitivity over temperature and symmetrical thresholds in order to achieve a stable duty cycle.

The integrated circuit provides a digital signal output with frequency proportional to the speed of rotation.

Key Features

  • S.
  • Digital output signal.
  • Low cut-off frequency.
  • High sensitivity.
  • Symmetrical thresholds.
  • Reduced power consumption.
  • AC coupled.
  • Output protection against electrical disturbances.
  • Large temperature range.
  • Large airgap.
  • Protection against overvoltage.
  • Protection against reversed polarity.
  • Two-wire and three-wire configuration possible.
  • Advanced performance.
  • South and north pole pre-induction possible.
  • High piezo resistiv.

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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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UNISONIC TECHNOLOGIES CO., LTD UH4921 Preliminary LINEAR INTEGRATED CIRCUIT DYNAMIC DIFFERENTIAL HALL EFFECT SENSOR IC WITH DIGITAL SIGNAL OUTPUT  DESCRIPTION The differential Hall Effect sensor UTC UH4921 provides a superior stability and a high sensitivity over temperature and symmetrical thresholds in order to achieve a stable duty cycle. The integrated circuit provides a digital signal output with frequency proportional to the speed of rotation. Unlike other rotational sensors differential Hall ICs are not influenced by radial vibration within the effective airgap of the sensor and require no external signal processing.