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Fully differential gain-boosted ota design for pipeline daconverter in 180NM CMOS technology
KTH, School of Information and Communication Technology (ICT), Microelectronics and Information Technology, IMIT.
KTH, School of Information and Communication Technology (ICT), Microelectronics and Information Technology, IMIT.
2005 (English)Conference paper, Published paper (Refereed)
Abstract [en]

This paper describes a fully differential gain-boosted improved OTA for high performance pipeline DA-converter [1], [2] in UMC 180nm technology for a 3.3V power supply applications. The architecture chosen for the design is a folded cascode OTA structure for the main and gain boosting stages. The designed OTA achieved a very high DC gain greater than 95db with a unity gain band width of 500MHz for a 500fF load with a power consumption of 14.5mW and phase margin of more then 55 degrees, which meets the design specifications. The design is meant to be used for implementation of a pipeline DA-converter, using selection inversion based on Gray coded bit vector. Simulation is done using Cadence Affirm Spectre circuit simulator. Layout of the OTA structure has been finished and prepared to be taped out.

Place, publisher, year, edition, pages
2005.
Series
Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems
Keyword [en]
Bandpass amplifiers, Brain, Circuit simulation, CMOS integrated circuits, Electric power supplies to apparatus, Electric power utilization, Networks (circuits), Pipelines, Applications., Cascode, Circuit simulators, Cmos technologies, Design specifications, Fully differentials, Gain boosting, Gray coded bits, High dc gains, Phase margins, Power consumptions, Power supplies, Design
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-156285DOI: 10.1109/ICECS.2005.4633597Scopus ID: 2-s2.0-56749158609ISBN: 9789972611001 (print)OAI: oai:DiVA.org:kth-156285DiVA: diva2:766973
Conference
12th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2005, 11 December 2005 through 14 December 2005, Gammarth, Tunisia
Note

QC 20141128

Available from: 2014-11-28 Created: 2014-11-26 Last updated: 2014-11-28Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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Language
  • de-DE
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  • nn-NB
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Output format
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