publication . Article . 2011

Simple voltage-controlled current source for wideband electrical bioimpedance spectroscopy : circuit dependences and limitations

Seoane, F.; Macías Macías, Raul; Bragós Bardia, Ramon; Lindecrantz, K.;
Open Access English
  • Published: 01 Jan 2011
  • Publisher: Technical University of Catalonia
Abstract
In this work, the single Op-Amp with load-in-the-loop topology as a current source is revisited. This circuit topology was already used as a voltage-controlled current source (VCCS) in the 1960s but was left unused when the requirements for higher frequency arose among the applications of electrical bioimpedance (EBI). The aim of the authors is not only limited to show that with the currently available electronic devices it is perfectly viable to use this simple VCCS topology as a working current source for wideband spectroscopy applications of EBI, but also to identify the limitations and the role of each of the circuit components in the most important paramete...
Subjects
free text keywords: current source; electrical biompedance spectroscopy; operational amplifiers, :Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors::Xarxes de banda ampla [Àrees temàtiques de la UPC], Spectrum analysis, Comunicació sense fil, Sistemes de, electrical biompedance spectroscopy, Teoria espectral (Matemàtica), Wireless communication systems, current source, operational amplifers, Medical Laboratory and Measurements Technologies, Medicinsk laboratorie- och mätteknik
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publication . Article . 2011

Simple voltage-controlled current source for wideband electrical bioimpedance spectroscopy : circuit dependences and limitations

Seoane, F.; Macías Macías, Raul; Bragós Bardia, Ramon; Lindecrantz, K.;