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A differential difference comparator for multi-step A/D converters

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Author

  • Gang Xu
  • Jiren Yuan

Summary, in English

The proposed Differential Difference Comparator (DDC) provides easy linear voltage summing/subtraction and comparison functions via current operation. The speed of this unconventional comparator drastically improved since there is no feedback loop and coupling capacitors needed to maintain the linearity. The linear input range is also enlarged by the common mode compression. The principle, design considerations and simulation results are presented based on a comparator used in an 8 bit 2-step A/D converter over 100 MS/s.

Publishing year

2003

Language

English

Pages

257-260

Publication/Series

Proceedings - IEEE International Symposium on Circuits and Systems

Volume

1

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • Differential difference comparators (DDC)

Conference name

Proceedings of the 2003 IEEE International Symposium on Circuits and Systems

Conference date

2003-05-25 - 2003-05-28

Conference place

Bangkok, Thailand

Status

Published

ISBN/ISSN/Other

  • ISSN: 2158-1525
  • ISSN: 0271-4310