NDLI: Front End Track and Hold Circuit for High Speed Analog to Digital Converters

Content Provider	IEEE Xplore Digital Library
Author	Agarwal, H. Rana, A.
Copyright Year	2012
Abstract	Source follower based open loop track and hold circuits are commonly employed at front end of pipelined analog to digital converters. Performance of such track and hold degrades at higher operating frequencies due to non linearity arising due to non ideal MOS switches. In present work, conventional open loop track and hold circuit is implemented and its performance is improved by adopting two switch linearization techniques: voltage bootstrapping and gate voltage boosting. Based on these two techniques, another bootstrapped switch is proposed which operates at voltage higher than Vdd. Track and hold with proposed switch produces low distortion and can provide 9 bit static linearity at 500 MHz clock and suitable for high resolution high speed analog to digital converters.
Starting Page	785
Ending Page	789
File Size	330116
Page Count	5
File Format	PDF
ISBN	9781467315388
DOI	10.1109/CSNT.2012.219
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-11
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Tracking loops Capacitors Switches Boosting Distortion Bootstrapping Linearity Logic gates Analog to digital converter Threshold voltage MOS switch Open loop track and hold Clocks
Content Type	Text
Resource Type	Article

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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
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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
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Front End Track and Hold Circuit for High Speed Analog to Digital Converters