WIDE RANGE TEMPERATURE-TO-DIGITAL CONVERTER WITHOUT EXPLICIT DATA CONVERTERS
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United States of America Patent
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Jan 11, 2024
app pub date -
Jan 11, 2023
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Jul 7, 2022
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Abstract
The present disclosure relates to a temperature-to-digital converter that fulfills the requirement of sensing temperature in applications, such as automotive, where operation in a wide temperature range is essential. Due to the dependency of the transistor models on the temperature, the conventional temperature sensors have a limited range in which they have an acceptable function. The disclosed sensor overcomes this problem by introducing a design independent of the transistor model and relies on cancelling and matching temperature non-linearity of different blocks. The approach according to the present disclosure enables the design of a temperature sensor that is operational in the never before achieved range of −55° C. to 200° C.
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