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Erschienen in:
Introduction to Energy Harvesting Transducers and Their Power Conditioning Circuits Kapitel lesen Erstes Kapitel lesen

2019 | OriginalPaper | Buchkapitel

Low-Power Resistive Bridge Readout Circuit Integrated in Two Millimeter-Scale Pressure-Sensing Systems

verfasst von : Sechang Oh, Yao Shi, Gyouho Kim, Yejoong Kim, Taewook Kang, Seokhyeon Jeong, Dennis Sylvester, David Blaauw

Erschienen in: Low-Power Analog Techniques, Sensors for Mobile Devices, and Energy Efficient Amplifiers

Verlag: Springer International Publishing

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Abstract

A duty-cycled bridge-to-digital converter (BDC) for small battery operated pressure sensing systems is presented and demonstrated in two complete microsystems. By heavily duty-cycling an excitation voltage for the bridge sensor, 6000× less excitation power is consumed compared with conventional DC biasing. The excitation voltage is sampled and used to generate an ADC reference voltage to avoid line voltage fluctuation. The BDC achieves 49.2 dB SNR and 2.5 nJ conversion energy with 10.6 pJ/c.s. FOM.

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Vorheriges Kapitel Ultra-Low-Power Clock Generation for IoT Radios
Nächstes Kapitel Advanced Capacitive Sensing for Mobile Devices
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Metadaten
Titel
Low-Power Resistive Bridge Readout Circuit Integrated in Two Millimeter-Scale Pressure-Sensing Systems
verfasst von
Sechang Oh
Yao Shi
Gyouho Kim
Yejoong Kim
Taewook Kang
Seokhyeon Jeong
Dennis Sylvester
David Blaauw
Copyright-Jahr
2019
Buch
Low-Power Analog Techniques, Sensors for Mobile Devices, and Energy Efficient Amplifiers

Print ISBN: 978-3-319-97869-7

Electronic ISBN: 978-3-319-97870-3

Copyright-Jahr: 2019

DOI
https://doi.org/10.1007/978-3-319-97870-3_6

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