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CMOS quasi‐digital temperature sensor for battery operated systems
Author(s) -
Azcona C.,
Calvo B.,
Medrano N.,
Celma S.
Publication year - 2013
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2013.2299
Subject(s) - multivibrator , cmos , electrical engineering , battery (electricity) , power consumption , sensitivity (control systems) , electronic engineering , power (physics) , materials science , engineering , computer science , voltage , physics , quantum mechanics
A high performance 1.2 V–0.18 µm CMOS quasi‐digital temperature sensor is presented with frequency output suitable to be used in battery operated systems. It is based on a multivibrator current‐to‐frequency converter and works properly over a temperature range of –40 to + 120°C, exhibiting a linear sensitivity of 442 Hz/°C with accuracy better than 1.0°C and a power consumption of 1.8 µW.

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