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Publication Detail
A high output impedance current source for wideband bioimpedance measurements
  • Publication Type:
    Conference
  • Authors:
    Hong H, Demosthenous A, Bayford R
  • Publisher:
    Springer-Verlag
  • Publication date:
    2009
  • Place of publication:
    Berlin / Heidelberg, Germany
  • Pagination:
    117, 118
  • Published proceedings:
    World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany
  • Volume:
    25/2 Diagnostic Imaging
  • Series:
    IFMBE Proceedings
  • Editors:
    Dössel O,Schlegel WC
  • ISBN-13:
    9783642038785
  • Status:
    Published
  • Language:
    English
  • Series editors:
    Magjarevic R
Abstract
Current sources for bio-impedance measurements are limited by insufficient output impedance above 100 kHz. This paper presents a new current source, which achieves high output impedance (>1 MΩ at 1 MHz in simulation) to address this limitation. The current source has been designed in a 0.35-μm CMOS process and uses ±2.5 V power supplies. The circuit performance has been verified in simulation.
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