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

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Author

  • Cheng Chen
  • Jiren Yuan

Summary, in English

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.

Publishing year

2007

Language

English

Pages

249-252

Publication/Series

7th International Conference on ASIC, 2007. ASICON '07

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • finite opamp gain
  • pipeline A/D converter
  • calibration
  • reference
  • refreshing

Conference name

7th International Conference on ASIC

Conference date

2007-10-26 - 2007-10-29

Conference place

Guilin, China

Status

Published

ISBN/ISSN/Other

  • ISBN: 978-1-4244-1132-0