A continuous-time input pipeline ADC with inherent anti-alias filtering

David Gubbins, Sunwoo Kwon, Bumha Lee, Pavan Kumar Hanumolu, Un Ku Moon

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

Abstract

The first continuous-time input pipeline Nyquist rate ADC architecture with inherent anti-alias filtering is introduced. Such an approach overcomes many of the challenges associated with a pure switched-capacitor architecture. Inherent anti-alias filtering is implemented in the first stage MDAC using first order Sinc filtering and a simple RC filter, allowing the possibility of eliminating costly anti-alias filters. The effect of switched-capacitor sampling distortion is reduced. This architecture also eases the jitter requirements of the ADC clock when compared to switched capacitor pipeline ADCs. 9.85 ENOB is achieved with 21.4mW analog power from a 1.8V supply at 26MSPS in a 0.18μm CMOS process.

Original languageEnglish (US)
Title of host publication2009 IEEE Custom Integrated Circuits Conference, CICC '09
Pages275-278
Number of pages4
DOIs
StatePublished - 2009
Externally publishedYes
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

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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