A 174 pW-488.3 nW 1 S/s-100 kS/s All-Dynamic Resistive Temperature Sensor With Speed/Resolution/Resistance Adaptability

A versatile resistive temperature sensor for Internet-of-Things is presented, based on an all-dynamic architecture. This allows efficient scaling of power with conversion rate, enables optional oversampling for an adaptable resolution, and provides efficient adaptability to different resistor values...

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Bibliographic Details
Published inIEEE solid-state circuits letters Vol. 1; no. 3; pp. 70 - 73
Main Authors Haoming Xin, Andraud, Martin, Baltus, Peter, Cantatore, Eugenio, Harpe, Pieter
Format Journal Article
LanguageEnglish
Published IEEE 01.03.2018
Subjects
Bridge circuits
Duty-cycling
dynamic
Internet-of-Things (IoT)
Power measurement
Resistance
resistive bridge
Resistors
SAR ADC
Temperature measurement
temperature sensor
Temperature sensors
Time measurement
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ISSN2573-9603
2573-9603
DOI10.1109/LSSC.2018.2827883

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Summary:A versatile resistive temperature sensor for Internet-of-Things is presented, based on an all-dynamic architecture. This allows efficient scaling of power with conversion rate, enables optional oversampling for an adaptable resolution, and provides efficient adaptability to different resistor values. A new double-sided measurement mode is proposed to compensate for offset, 1/f noise and nonidealities at system level. The sensor achieves a minimum power consumption of 174 pW at 1 S/s measurement rate, which scales up to 488.3 nW at 100 kS/s. It offers a nominal rms resolution of 0.61 °C and a resolution FoM as low as 1.82 pJ·°C2.
ISSN:2573-9603
2573-9603
DOI:10.1109/LSSC.2018.2827883