NDLI: A 0.5-V 74-dB SNDR 25-kHz Continuous-Time Delta-Sigma Modulator With a Return-to-Open DAC

Content Provider	IEEE Xplore Digital Library
Author	Kong-Pang Pun Shouri Chatterjee Kinget, P.R.
Copyright Year	1966
Abstract	A 0.5-V third-order one-bit fully-differential continuous-time DeltaSigma modulator is presented. The presented modulator architecture uses true low-voltage design techniques, and does not require internal voltage boosting or low-threshold devices. A return-to-open architecture that enables the ultra-low-voltage realization of return-to-zero signaling for the feedback DAC is proposed. The ultra-low-voltage operation is further enabled by a body-input gate-clocked comparator, and body-input operational transconductance amplifiers for the active-RC loop filter. Fabricated on a 0.18-mum CMOS process, the modulator achieves a peak SNDR of 74 dB in a 25 kHz bandwidth, and occupies an area of 0.6 mm²; the modulator core consumes 300 muW.
Sponsorship	IEEE Solid-State Circuits Society IEEE Electron Devices Society IEEE Circuits and Systems Society Japan Society of Applied Physics (JSAP) IEEE Microwave Theory and Techniques Society IEEE San Francisco Section Bay Area Council Univ. PA IEEE
Starting Page	496
Ending Page	507
Page Count	12
File Size	1434804
File Format	PDF
ISSN	00189200
Volume Number	42
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Delta modulation CMOS technology Boosting Low voltage Analog circuits Feedback Transconductance Operational amplifiers Filters Bandwidth ultra-low-voltage circuit Body-input circuit continuous-time delta-sigma modulator return-to-zero signaling
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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