High-Speed High-Precision CMOS Current Conveyor

Authors: Calvo B.¹; Celma S.²; Martínez P.A.²; Sanz M.T.²

Source: Analog Integrated Circuits and Signal Processing, Volume 34, Number 3, March 2003 , pp. 265-269(5)

Publisher: Springer

Abstract:

In this paper a new class-AB CMOS second generation current conveyor (CCII) based on a novel high-performance voltage follower topology is proposed. Post-layout simulation results from a 0.8 m design supplied at 3.3 V show very low resistance at node X (< 50 ), high frequency operation (100 MHz), high precision in the voltage and current transference and reduced offset. As application examples, a V-I converter and a current feedback operational amplifier (CFOA) have been implemented. The latter presents slew-rate levels higher than ±100 V/s.

Keywords: CMOS analogue circuits; current conveyor; current-mode signal processing; current feedback operational amplifier

Language: English

Document Type: Research article

Affiliations: 1: Grupo de Diseño Electrónico, Facultad de Ciencias at the Universidad de Zaragoza, Zaragoza, Spain Fax: +34 976 762143 becalvo@posta.unizar.es; uelec@posta.unizar.es 2: Grupo de Diseño Electrónico, Facultad de Ciencias at the Universidad de Zaragoza, Zaragoza, Spain Fax: +34 976 762143 uelec@posta.unizar.es

Publication date: 2003-03-01

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• In this Subject: Electrical & Nuclear Engineering
• By this author: Calvo B. ;  Celma S. ;  Martínez P.A. ;  Sanz M.T.

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