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

Sechang Oh; Yao Shi; Gyouho Kim; Yejoong Kim; Taewook Kang; Seokhyeon Jeong; Dennis Sylvester; David Blaauw

doi:10.1007/978-3-319-97870-3_6

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

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

University of Michigan, Ann Arbor

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

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.

Original language	English
Title of host publication	Low-Power Analog Techniques, Sensors for Mobile Devices, and Energy Efficient Amplifiers
Subtitle of host publication	Advances in Analog Circuit Design 2018
Publisher	Springer International Publishing
Pages	111-128
Number of pages	18
ISBN (Electronic)	9783319978703
ISBN (Print)	9783319978697
DOIs	https://doi.org/10.1007/978-3-319-97870-3_6
State	Published - 1 Jan 2019
Externally published	Yes

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10.1007/978-3-319-97870-3_6

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Oh, S., Shi, Y., Kim, G., Kim, Y., Kang, T., Jeong, S., Sylvester, D., & Blaauw, D. (2019). Low-Power Resistive Bridge Readout Circuit Integrated in Two Millimeter-Scale Pressure-Sensing Systems. In Low-Power Analog Techniques, Sensors for Mobile Devices, and Energy Efficient Amplifiers: Advances in Analog Circuit Design 2018 (pp. 111-128). Springer International Publishing. https://doi.org/10.1007/978-3-319-97870-3_6

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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.",

author = "Sechang Oh and Yao Shi and Gyouho Kim and Yejoong Kim and Taewook Kang and Seokhyeon Jeong and Dennis Sylvester and David Blaauw",

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doi = "10.1007/978-3-319-97870-3\_6",

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Oh, S, Shi, Y, Kim, G, Kim, Y, Kang, T, Jeong, S, Sylvester, D & Blaauw, D 2019, Low-Power Resistive Bridge Readout Circuit Integrated in Two Millimeter-Scale Pressure-Sensing Systems. in Low-Power Analog Techniques, Sensors for Mobile Devices, and Energy Efficient Amplifiers: Advances in Analog Circuit Design 2018. Springer International Publishing, pp. 111-128. https://doi.org/10.1007/978-3-319-97870-3_6

Low-Power Resistive Bridge Readout Circuit Integrated in Two Millimeter-Scale Pressure-Sensing Systems. / Oh, Sechang; Shi, Yao; Kim, Gyouho et al.
Low-Power Analog Techniques, Sensors for Mobile Devices, and Energy Efficient Amplifiers: Advances in Analog Circuit Design 2018. Springer International Publishing, 2019. p. 111-128.

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

TY - CHAP

T1 - Low-Power Resistive Bridge Readout Circuit Integrated in Two Millimeter-Scale Pressure-Sensing Systems

AU - Oh, Sechang

AU - Shi, Yao

AU - Kim, Gyouho

AU - Kim, Yejoong

AU - Kang, Taewook

AU - Jeong, Seokhyeon

AU - Sylvester, Dennis

AU - Blaauw, David

PY - 2019/1/1

Y1 - 2019/1/1

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/85149574261

U2 - 10.1007/978-3-319-97870-3_6

DO - 10.1007/978-3-319-97870-3_6

M3 - Chapter

AN - SCOPUS:85149574261

SN - 9783319978697

SP - 111

EP - 128

BT - Low-Power Analog Techniques, Sensors for Mobile Devices, and Energy Efficient Amplifiers

PB - Springer International Publishing

ER -

Oh S, Shi Y, Kim G, Kim Y, Kang T, Jeong S et al. Low-Power Resistive Bridge Readout Circuit Integrated in Two Millimeter-Scale Pressure-Sensing Systems. In Low-Power Analog Techniques, Sensors for Mobile Devices, and Energy Efficient Amplifiers: Advances in Analog Circuit Design 2018. Springer International Publishing. 2019. p. 111-128 doi: 10.1007/978-3-319-97870-3_6

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

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