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High linearity, low offset interface for hall effect devices

  • US 20030006753A1
  • Filed: 09/06/2002
  • Published: 01/09/2003
  • Est. Priority Date: 10/08/1998
  • Status: Active Grant
First Claim
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1. A Hall effect sensor with improved output interface for high linearity and low offset performance, as associated with a given line voltage, comprising:

  • a Hall effect device of the type having a substrate, first and second device inputs and first and second device outputs, wherein said substrate is electrically connected to one of said device outputs and capacitively coupled to said Hall effect device;

    a biasing current supplied to said device proportional to the line voltage with which said device and interface are associated; and

    a biasing circuit including said substrate, wherein said substrate is electrically interconnected to one of said device outputs.

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