Systems and methods for on-chip temperature sensor
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United States of America Patent
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Issued Date -
Apr 30, 2015
app pub date -
Feb 3, 2014
filing date -
Oct 29, 2013
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Abandoned
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Abstract
Various embodiments of the invention use the characteristics of BJTs to compute parameter values required to de-embed the effects of non-idealities including BJT's-mismatch in the reverse saturation current and process-dependent injection factor. In some embodiments, a temperature sensor circuit and method provide high temperature accuracy in a low-cost way by individually calibrating each part, thereby, eliminating the need to accurately measure temperature with a precision temperature sensor.
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