A 2.5-V 4-μW low-power delta-sigma modulator for implantable cardiac pacemaker with periodic bias current reduction technique

Chae Ryung Kim; Yu Ri Kang; Young Jae Min; Soo Won Kim

A 2.5-V 4-μW low-power delta-sigma modulator for implantable cardiac pacemaker with periodic bias current reduction technique

Chae Ryung Kim, Yu Ri Kang, Young Jae Min, Soo Won Kim

Research output: Contribution to journal › Conference article › peer-review

Abstract

This paper proposes a 2.5 V supply, 4 μW low-power delta-sigma modulator for implantable cardiac pacemaker system. Periodic bias current reduction technique is proposed to reduce the power consumption of delta-sigma modulator implemented with switched-capacitor integrator. 2^nd order delta-sigma modulator exploiting mosfets operating in moderate inversion region is fabricated in a CMOS 0.25 um process. Measurement results of delta-sigma converter show a power dissipation of 4 uW, and 46 dB of peak SNR in a 128 Hz signal bandwidth.

Original language	English
Article number	4252639
Pages (from-to)	333-336
Number of pages	4
Journal	Proceedings - IEEE International Symposium on Circuits and Systems
Publication status	Published - 2007
Event	2007 IEEE International Symposium on Circuits and Systems, ISCAS 2007 - New Orleans, LA, United States Duration: 2007 May 27 → 2007 May 30

ASJC Scopus subject areas

Electrical and Electronic Engineering

Cite this

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title = "A 2.5-V 4-μW low-power delta-sigma modulator for implantable cardiac pacemaker with periodic bias current reduction technique",

abstract = "This paper proposes a 2.5 V supply, 4 μW low-power delta-sigma modulator for implantable cardiac pacemaker system. Periodic bias current reduction technique is proposed to reduce the power consumption of delta-sigma modulator implemented with switched-capacitor integrator. 2nd order delta-sigma modulator exploiting mosfets operating in moderate inversion region is fabricated in a CMOS 0.25 um process. Measurement results of delta-sigma converter show a power dissipation of 4 uW, and 46 dB of peak SNR in a 128 Hz signal bandwidth.",

author = "Kim, {Chae Ryung} and Kang, {Yu Ri} and Min, {Young Jae} and Kim, {Soo Won}",

year = "2007",

language = "English",

pages = "333--336",

journal = "Proceedings - IEEE International Symposium on Circuits and Systems",

issn = "0271-4310",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

note = "2007 IEEE International Symposium on Circuits and Systems, ISCAS 2007 ; Conference date: 27-05-2007 Through 30-05-2007",

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T1 - A 2.5-V 4-μW low-power delta-sigma modulator for implantable cardiac pacemaker with periodic bias current reduction technique

AU - Kim, Chae Ryung

AU - Kang, Yu Ri

AU - Min, Young Jae

AU - Kim, Soo Won

PY - 2007

Y1 - 2007

N2 - This paper proposes a 2.5 V supply, 4 μW low-power delta-sigma modulator for implantable cardiac pacemaker system. Periodic bias current reduction technique is proposed to reduce the power consumption of delta-sigma modulator implemented with switched-capacitor integrator. 2nd order delta-sigma modulator exploiting mosfets operating in moderate inversion region is fabricated in a CMOS 0.25 um process. Measurement results of delta-sigma converter show a power dissipation of 4 uW, and 46 dB of peak SNR in a 128 Hz signal bandwidth.

AB - This paper proposes a 2.5 V supply, 4 μW low-power delta-sigma modulator for implantable cardiac pacemaker system. Periodic bias current reduction technique is proposed to reduce the power consumption of delta-sigma modulator implemented with switched-capacitor integrator. 2nd order delta-sigma modulator exploiting mosfets operating in moderate inversion region is fabricated in a CMOS 0.25 um process. Measurement results of delta-sigma converter show a power dissipation of 4 uW, and 46 dB of peak SNR in a 128 Hz signal bandwidth.

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M3 - Conference article

AN - SCOPUS:34548827043

SN - 0271-4310

SP - 333

EP - 336

JO - Proceedings - IEEE International Symposium on Circuits and Systems

JF - Proceedings - IEEE International Symposium on Circuits and Systems

M1 - 4252639

T2 - 2007 IEEE International Symposium on Circuits and Systems, ISCAS 2007

Y2 - 27 May 2007 through 30 May 2007

ER -

A 2.5-V 4-μW low-power delta-sigma modulator for implantable cardiac pacemaker with periodic bias current reduction technique

Abstract

ASJC Scopus subject areas

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