Extension of Current Conveyor Concept and Its Applications

Takahide SATO  Kazuyuki WADA  Shigetaka TAKAGI  Nobuo FUJII  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E85-A   No.2   pp.414-421
Publication Date: 2002/02/01
Online ISSN: 
Print ISSN: 0916-8508
Type of Manuscript: PAPER
Category: Analog Signal Processing
current conveyor,  OTA,  NIC,  filter,  

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This paper proposes an extension of a conventional current conveyor (CC) concept and its applications. A relaxation of the definition of a conventional CC makes a CC simple. A novel current conveyor named extended current conveyor (ECC) is introduced. An ECC keeps the most significant feature of a CC, i.e., a CC is combination of a VCVS and a CCCS. On the other hand, the other conditions are relaxed. All terminals of the ECC are allowed to have offset voltage and offset current. An ECC usually has a simple structure with a small number of MOSFETs thanks to the relaxation of the conditions. Some circuit configurations for the ECC which have various characteristics are shown. An NIC and OTAs are realized using ECCs. Validity of an ECC is confirmed through HSPICE simulation.