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Publication Detail
A CMOS adaptive interference reduction system for nerve cuff recordings
  • Publication Type:
    Conference
  • Authors:
    Triantis IF, Rieger R, Taylor J, Demosthenous A, Donaldson N
  • Publisher:
    IEEE Computer Society
  • Publication date:
    2002
  • Place of publication:
    Piscataway, US
  • Pagination:
    113, 116
  • Published proceedings:
    Proceedings of the 28th European Solid-State Circuits Conference, 2002: ESSCIRC 2002
  • Status:
    Published
  • Language:
    English
  • Notes:
    Conference took place between 24-26 September 2002, Florence, Italy
Abstract
This paper describes the realisation of an automatic control system for use in nerve cuff recordings. The system compensates for any impedance mismatches in the cuff by adaptively adjusting the gains of the input differential amplifiers connected to the cuff electrodes. As a result, interference pick-up during nerve recordings is greatly reduced. The gains of the variable gain amplifiers are adjusted by means of current feedback. The control chip was fabricated in 0.8µm CMOS technology, has a core area of 0.35mm2and consumes 3.5mW from ±2.5V power supplies.
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