Signal-Dependent Analog-to-Digital Conversion Based on MINIMAX Sampling

• HOMJAKOVS Igors

  Dept. of Information Systems Engineering, Osaka University

• HASHIMOTO Masanori

  Dept. of Information Systems Engineering, Osaka University

• HIROSE Tetsuya

  Dept. of Electrical and Electronics Engineering, Kobe University

• ONOYE Takao

  Dept. of Information Systems Engineering, Osaka University

Abstract

This paper presents an architecture of signal-dependent analog-to-digital converter (ADC) based on MINIMAX sampling scheme that allows achieving high data compression rate and power reduction. The proposed architecture consists of a conventional synchronous ADC, a timer and a peak detector. AD conversion is carried out only when input signal peaks are detected. To improve the accuracy of signal reconstruction, MINIMAX sampling is improved so that multiple points are captured for each peak, and its effectiveness is experimentally confirmed. In addition, power reduction, which is the primary advantage of the proposed signal-dependent ADC, is analytically discussed and then validated with circuit simulations.

Journal

• IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

  IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E96.A (2), 459-468, 2013

  The Institute of Electronics, Information and Communication Engineers

Keywords

• signal-dependent sampling
• MINIMAX
• peak-detection

Details

• CRID: 1390001206310047744
• NII Article ID: 10031167143
• NII Book ID: AA10826239
• DOI: 10.1587/transfun.e96.a.459
• ISSN: 17451337
• ISSN: 09168508
• Web Site: https://www.jstage.jst.go.jp/article/transfun/E96.A/2/E96.A_459/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed