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ALS31000 - Unidirectional Linear Hall-Effect Sensor

General Description

New applications for linear output Hall-effect sensors, such as displacement and angular position, require higher accuracy and smaller package sizes.

The Allegro ALS31000 linear Hall-effect sensor IC has been designed specifically to meet both requirements.

Key Features

  • 5 V supply operation.
  • QVO temperature coefficient programmed at Allegro™ for improved accuracy.
  • Miniature package options.
  • High-bandwidth, low-noise analog output.
  • High-speed chopping scheme minimizes QVO drift across operating temperature range.
  • Temperature-stable quiescent voltage output and sensitivity.
  • Precise recoverability after temperature cycling.
  • Output voltage clamps provide short-circuit diagnostic capabilities.

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Full PDF Text Transcription (Reference)

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ALS31000 Unidirectional Linear Hall-Effect Sensor IC with Analog Output in Miniature Low-Profile Surface-Mount Package FEATURES AND BENEFITS • 5 V supply operation • QVO temperature coefficient programmed at Allegro™ for improved accuracy • Miniature package options • High-bandwidth, low-noise analog output • High-speed chopping scheme minimizes QVO drift across operating temperature range • Temperature-stable quiescent voltage output and sensitivity • Precise recoverability after temperature cycling • Output voltage clamps provide short-circuit diagnostic capabilities • Undervoltage lockout (UVLO) • Wide ambient temperature range: –40°C to 150°C • Immune to mechanical stress • Enhanced EMC performance for stringent automotive applications Package: 3-pin SOT23-W 2 mm × 3 mm × 1 mm (suffix