A 10-bit pipeline ADC using 40-dB opamps and calibrated customized references

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

A 10-bit pipeline A/D converter using low gain (<= 40 dB) operational amplifiers (opamps) is presented. Without. interfering the normal analog-to-digital conversion, a continuous reference refreshing technique is exploited. This technique effectively reduces the gain requirement of opamp while the conversion speed is not compromised, allowing the use of simple cascode CMOS inverters. The compensation of finite gain of the opamp is made by using customized reference voltages that is calibrated periodically. The technique has been confirmed by intensive simulations. As a result of the relaxed opamp gain requirement, significant reduction in power consumption can be achieved.

Details

Authors
  • Cheng Chen
  • Jiren Yuan
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • finite opamp gain, pipeline A/D converter, calibration, reference, refreshing
Original languageEnglish
Title of host publication7th International Conference on ASIC, 2007. ASICON '07
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Pages249-252
ISBN (Print)978-1-4244-1132-0
Publication statusPublished - 2007
Publication categoryResearch
Peer-reviewedYes
Event7th International Conference on ASIC - Guilin, China
Duration: 2007 Oct 262007 Oct 29

Conference

Conference7th International Conference on ASIC
CountryChina
CityGuilin
Period2007/10/262007/10/29