Systems and methods for reducing temperature sensor reading variation due to device mismatch
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United States of America Patent
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Oct 10, 2023
Grant Date -
Nov 7, 2019
app pub date -
Jul 11, 2019
filing date -
Sep 25, 2015
priority date (Note) -
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Abstract
A temperature sensor is disclosed. The temperature sensor includes an analog core having at least first and second circuit nodes and configured to provide a temperature dependent output, a multiplexer coupled to the first and second circuit nodes and configured for at least first and second states in each of which the first circuit node couples to a different circuit element and in each of which the second circuit node couples to a different circuit element, and a controller coupled to the analog core and configured to provide a temperature measurement that is an average of at least first and second readings of the temperature dependent output of the analog core, the first reading taken while the multiplexer is in the first state, and the second reading taken while the multiplexer is in the second state.
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