Highly efficient comparator design automation for TIQ flash A/D converter

Insoo Kim, Jincheol Yoo, Jong Soo Kim, Kyusun Choi

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Threshold Inverter Quantization (TIQ) technique has been gaining its importance in high speed flash A/D converters due to its fast data conversion speed. It eliminates the need of resistor ladders for reference voltages generation which requires substantial power consumption. The key to TIQ comparators design is to generate 2n - 1 different sized TIQ comparators for an n-bit A/D converter. This paper presents a highly efficient TIQ comparator design methodology based on an analytical model as well as SPICE simulation experimental model. One can find any sets of TIQ comparators efficiently using the proposed method. A 6-bit TIQ A/D converter has been designed in a 0.18μm standard CMOS technology using the proposed method, and compared to the previous measured results in order to verify the proposed methodology.

Original languageEnglish (US)
Pages (from-to)3415-3422
Number of pages8
JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
VolumeE91-A
Issue number12
DOIs
StatePublished - Jan 1 2008

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Computer Graphics and Computer-Aided Design
  • Electrical and Electronic Engineering
  • Applied Mathematics

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