NDLI: Finite GBW compensation technique for CT ΔΣ modulators with differentiator based ELD compensation

Content Provider	IEEE Xplore Digital Library
Author	Chao Chu Anders, J. Becker, J. Ortmanns, M.
Copyright Year	2015
Description	Author affiliation: Inst. of Microelectron., Univ. of Ulm, Ulm, Germany (Chao Chu; Anders, J.; Becker, J.; Ortmanns, M.)
Abstract	In this work, the mixed-signal differentiator technique for the compensation of excess loop delay has been extended to counteract the effect of the finite GBW of the amplifiers. A RZ DAC is utilized to realize a fast compensation path from the quantizer output to the input of the last integrator. After proper tuning of the scaling coefficients, the original NTF of the modulator can be restored, which has been verified in a $3^{rd}$ order, single-bit single-loop CT ΔΣ modulator. By using the modified compensation technique, the GBW requirements on the amplifiers can be relaxed significantly while maintaining the SQNR performance and the modulator stability. Consequently, the power consumption of the amplifiers can be drastically reduced.
Starting Page	1
Ending Page	4
File Size	471322
Page Count	4
File Format	PDF
ISBN	9781479988938
DOI	10.1109/NEWCAS.2015.7182112
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-07
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Modulation Delays Optical signal processing Clocks Computed tomography Bandwidth Noise
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Finite GBW compensation technique for CT ΔΣ modulators with differentiator based ELD compensation