A power-efficient sizing methodology of SAR ADCs

Chun Po Huang, Soon Jyh Chang, Guan Ying Huang, Cheng Wu Lin

Research output: Contribution to conferencePaperpeer-review

3 Citations (Scopus)


Analog-to-digital converter (ADC) is a vital component for modern electronic systems, but designing an ADC usually takes much time and effort. Though several synthesis methods have been presented for analog circuits, there exists limited works focusing on ADC design automation. In this paper, we propose a systematic sizing methodology to minimize the power consumption for successive approximation register (SAR) ADCs in transistor level. This method manipulates the characteristics of SAR ADC to develop an efficient searching algorithm for shortening the sizing time. The time complexity of our method is O(2 log 2 S), where jSj is the number of candidates in the searching space. According to the proposed sizing flow, we develop a sizing tool which is independent of manufacturing process and is able to minimize power consumption for SAR ADCs. By using the developed sizing tool, a proof-of-concept prototype was carried out within only 15 minutes and fabricated in a 1P4M 0.11μm process. The measurement results show the prototype demonstrates a high competitiveness compared to other state-of-the-art works on performance and power efficiency.

Original languageEnglish
Number of pages4
Publication statusPublished - 2012 Sep 28
Event2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012 - Seoul, Korea, Republic of
Duration: 2012 May 202012 May 23


Other2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012
Country/TerritoryKorea, Republic of

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Electrical and Electronic Engineering


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