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Magnetic Field Sensor with Shared Path Amplifier and Analog-To-Digital-Converter

  • US 20160139199A1
  • Filed: 11/14/2014
  • Published: 05/19/2016
  • Est. Priority Date: 11/14/2014
  • Status: Active Grant
First Claim
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1. A magnetic field sensor comprising:

  • at least one magnetic field sensing element configured to generate a measured magnetic field signal responsive to an external magnetic field and to generate a reference magnetic field signal responsive to a reference magnetic field; and

    a signal path comprising an amplifier and an analog-to-digital converter for processing the measured magnetic field signal to generate a sensor output signal indicative of the external magnetic field during a measured time period and for processing the reference magnetic field signal to generate a diagnostic signal indicative of whether a fault is present during a non-overlapping reference time period.

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