A 10b 50MS/s opamp-sharing pipeline A/D with current-reuse OTAs

K. Chandrashekar, Bertan Bakkaloglu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

A 10b opamp-sharing pipeline A/D using current-reuse OTAs is presented. The current-reuse OTA, with two NMOS differential inputs operating in opposite phases, facilitates opamp-sharing between consecutive stages, minimizing power consumption. Constant transistor biasing ensures no loss of settling time from power-on delays. The A/D is fabricated in a 0.18μm CMOS process and occupies active area of 0.7mm2. At 50MS/s, maximum SNDR of 58dB (ENOB=9.3b) is obtained with 9.2mW analog power consumption on a 1.8V supply.

Original languageEnglish (US)
Title of host publicationProceedings of the Custom Integrated Circuits Conference
Pages263-266
Number of pages4
DOIs
StatePublished - 2009
Event2009 IEEE Custom Integrated Circuits Conference, CICC '09 - San Jose, CA, United States
Duration: Sep 13 2009Sep 16 2009

Other

Other2009 IEEE Custom Integrated Circuits Conference, CICC '09
CountryUnited States
CitySan Jose, CA
Period9/13/099/16/09

Fingerprint

Operational amplifiers
Electric power utilization
Pipelines
Transistors

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Chandrashekar, K., & Bakkaloglu, B. (2009). A 10b 50MS/s opamp-sharing pipeline A/D with current-reuse OTAs. In Proceedings of the Custom Integrated Circuits Conference (pp. 263-266). [5280855] https://doi.org/10.1109/CICC.2009.5280855

A 10b 50MS/s opamp-sharing pipeline A/D with current-reuse OTAs. / Chandrashekar, K.; Bakkaloglu, Bertan.

Proceedings of the Custom Integrated Circuits Conference. 2009. p. 263-266 5280855.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chandrashekar, K & Bakkaloglu, B 2009, A 10b 50MS/s opamp-sharing pipeline A/D with current-reuse OTAs. in Proceedings of the Custom Integrated Circuits Conference., 5280855, pp. 263-266, 2009 IEEE Custom Integrated Circuits Conference, CICC '09, San Jose, CA, United States, 9/13/09. https://doi.org/10.1109/CICC.2009.5280855
Chandrashekar K, Bakkaloglu B. A 10b 50MS/s opamp-sharing pipeline A/D with current-reuse OTAs. In Proceedings of the Custom Integrated Circuits Conference. 2009. p. 263-266. 5280855 https://doi.org/10.1109/CICC.2009.5280855
Chandrashekar, K. ; Bakkaloglu, Bertan. / A 10b 50MS/s opamp-sharing pipeline A/D with current-reuse OTAs. Proceedings of the Custom Integrated Circuits Conference. 2009. pp. 263-266
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