Abstract
A sensor circuit includes at least one ring oscillator having a supply port supplied by at least one current source and a reference frequency. A comparator compares a frequency output of the at least one ring oscillator with the reference frequency to yield a measurement, such as a temperature measurement.
Original language | American English |
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Patent number | US2019199329 |
IPC | G01K 7/ 01 A I |
Priority date | 22/12/17 |
State | Published - 27 Jun 2019 |