On the Development of Analogue Sampled-Data Signal Processing

  • Authors:
  • Gerson A. S. Machado;Nicholas C. Battersby;Chris Toumazou

  • Affiliations:
  • Dept of Electrical and Electronic Engineering, Imperial College, Exhibition Road, London SW7 2BT England;Dept of Electrical and Electronic Engineering, Imperial College, Exhibition Road, London SW7 2BT England;Dept of Electrical and Electronic Engineering, Imperial College, Exhibition Road, London SW7 2BT England

  • Venue:
  • Analog Integrated Circuits and Signal Processing
  • Year:
  • 1997

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Abstract

This paper provides a historical perspective on thedevelopment of analogue sampled-data signal processing circuitsand systems. The evolution, role and current trends in the developmentof analogue sampled-data signal processing systems is surveyed.Firstly, the evolution of integrated circuit based techniques,culminating in the ubiquitous switched-capacitor technique istraced. Then the role that analogue sampled-data systems playwithin the context of a general information processing environmentis examined and the required characteristics are identified.Trends in silicon integrated circuit processing technology aresummarised and their impact on sampled analogue circuits areidentified. Finally, the application of analogue current-modetechniques, and in particular switched-currents, to overcomesome of the limitations of previous voltage based approaches,is discussed.