The design of the integrator of sigma-delta modulator

Xiaowei Liu; Song Chen; Liang Liu; Jian Yang; Weiping Chen

doi:10.4028/www.scientific.net/KEM.562-565.477

The design of the integrator of sigma-delta modulator

Xiaowei Liu
, Song Chen^*
, Liang Liu
, Jian Yang
, Weiping Chen

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology

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

Abstract

A kind of fully differential integrator is designed for the modulator of Sigma-delta ADC in this paper. Fully differential structure is adopted to enlarge the amplitude of output, restrain nonlinearity and increase competence of anti-interference. The frequency of signal in this design is 10kHz and the frequency of clock signal is 100kHz. The design of fully differential integrator, capacitive common mode feedback, two-phase unoverlapping clock and switched capacitor integrator are accomplished in this paper. The simulation results in Cadence using 0.5um process show that the low-frequency gain of operational amplifier is 69.87dB, unity gain bandwidth is 37.74MHz, phase margin is 67.73 degrees and slew rate is more than 31V/μs.

Original language	English
Title of host publication	Micro-Nano Technology XIV
Publisher	Trans Tech Publications Ltd
Pages	477-481
Number of pages	5
ISBN (Print)	9783037857397
DOIs	https://doi.org/10.4028/www.scientific.net/KEM.562-565.477
State	Published - 2013
Event	14th Annual Conference and the 3rd International Conference of the Chinese Society of Micro-Nano Technology, CSMNT 2012 - Hangzhou, China Duration: 4 Nov 2012 → 7 Nov 2012

Publication series

Name	Key Engineering Materials
Volume	562-565
ISSN (Print)	1013-9826
ISSN (Electronic)	1662-9795

Conference

Conference	14th Annual Conference and the 3rd International Conference of the Chinese Society of Micro-Nano Technology, CSMNT 2012
Country/Territory	China
City	Hangzhou
Period	4/11/12 → 7/11/12

Keywords

Fully differential integrator
Sigma-delta modulator
Two-phase unoverlapping clock

Access to Document

10.4028/www.scientific.net/KEM.562-565.477

Cite this

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title = "The design of the integrator of sigma-delta modulator",

abstract = "A kind of fully differential integrator is designed for the modulator of Sigma-delta ADC in this paper. Fully differential structure is adopted to enlarge the amplitude of output, restrain nonlinearity and increase competence of anti-interference. The frequency of signal in this design is 10kHz and the frequency of clock signal is 100kHz. The design of fully differential integrator, capacitive common mode feedback, two-phase unoverlapping clock and switched capacitor integrator are accomplished in this paper. The simulation results in Cadence using 0.5um process show that the low-frequency gain of operational amplifier is 69.87dB, unity gain bandwidth is 37.74MHz, phase margin is 67.73 degrees and slew rate is more than 31V/μs.",

keywords = "Fully differential integrator, Sigma-delta modulator, Two-phase unoverlapping clock",

author = "Xiaowei Liu and Song Chen and Liang Liu and Jian Yang and Weiping Chen",

year = "2013",

doi = "10.4028/www.scientific.net/KEM.562-565.477",

language = "英语",

isbn = "9783037857397",

series = "Key Engineering Materials",

publisher = "Trans Tech Publications Ltd",

pages = "477--481",

booktitle = "Micro-Nano Technology XIV",

address = "瑞士",

note = "14th Annual Conference and the 3rd International Conference of the Chinese Society of Micro-Nano Technology, CSMNT 2012 ; Conference date: 04-11-2012 Through 07-11-2012",

}

Liu, X, Chen, S, Liu, L, Yang, J & Chen, W 2013, The design of the integrator of sigma-delta modulator. in Micro-Nano Technology XIV. Key Engineering Materials, vol. 562-565, Trans Tech Publications Ltd, pp. 477-481, 14th Annual Conference and the 3rd International Conference of the Chinese Society of Micro-Nano Technology, CSMNT 2012, Hangzhou, China, 4/11/12. https://doi.org/10.4028/www.scientific.net/KEM.562-565.477

TY - GEN

T1 - The design of the integrator of sigma-delta modulator

AU - Liu, Xiaowei

AU - Chen, Song

AU - Liu, Liang

AU - Yang, Jian

AU - Chen, Weiping

PY - 2013

Y1 - 2013

N2 - A kind of fully differential integrator is designed for the modulator of Sigma-delta ADC in this paper. Fully differential structure is adopted to enlarge the amplitude of output, restrain nonlinearity and increase competence of anti-interference. The frequency of signal in this design is 10kHz and the frequency of clock signal is 100kHz. The design of fully differential integrator, capacitive common mode feedback, two-phase unoverlapping clock and switched capacitor integrator are accomplished in this paper. The simulation results in Cadence using 0.5um process show that the low-frequency gain of operational amplifier is 69.87dB, unity gain bandwidth is 37.74MHz, phase margin is 67.73 degrees and slew rate is more than 31V/μs.

AB - A kind of fully differential integrator is designed for the modulator of Sigma-delta ADC in this paper. Fully differential structure is adopted to enlarge the amplitude of output, restrain nonlinearity and increase competence of anti-interference. The frequency of signal in this design is 10kHz and the frequency of clock signal is 100kHz. The design of fully differential integrator, capacitive common mode feedback, two-phase unoverlapping clock and switched capacitor integrator are accomplished in this paper. The simulation results in Cadence using 0.5um process show that the low-frequency gain of operational amplifier is 69.87dB, unity gain bandwidth is 37.74MHz, phase margin is 67.73 degrees and slew rate is more than 31V/μs.

KW - Fully differential integrator

KW - Sigma-delta modulator

KW - Two-phase unoverlapping clock

UR - https://www.scopus.com/pages/publications/84883738037

U2 - 10.4028/www.scientific.net/KEM.562-565.477

DO - 10.4028/www.scientific.net/KEM.562-565.477

M3 - 会议稿件

AN - SCOPUS:84883738037

SN - 9783037857397

T3 - Key Engineering Materials

SP - 477

EP - 481

BT - Micro-Nano Technology XIV

PB - Trans Tech Publications Ltd

T2 - 14th Annual Conference and the 3rd International Conference of the Chinese Society of Micro-Nano Technology, CSMNT 2012

Y2 - 4 November 2012 through 7 November 2012

ER -

The design of the integrator of sigma-delta modulator

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Keywords

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