A differential current-conveyor based buffer for high-bandwidth, low-signal applications

Author

Alves, Luís Nero ; Aguiar, Rui L.

Author_Institution

Inst. de Telecomun., Aveiro, Portugal

Volume

2

fYear

1999

fDate

5-8 Sep 1999

Firstpage

903

Abstract

This paper describes a novel differential buffer designed for high-bandwidth, low-power current transducers. This buffer uses modified class II current-conveyor cells, interconnected in such a way as to provide controlled impedance-matched differential inputs. This buffer is shown to provide a small current gain. Circuit simulations are presented and the circuit behaviour is analysed as a function of both input transducer characteristics and output loads. Noise considerations are also presented. This buffer is then applied to a wireless optical system. It increases overall system performance in both terms of gain and frequency response

Keywords

CMOS analogue integrated circuits; buffer circuits; current conveyors; current-mode circuits; frequency response; impedance matching; integrated circuit noise; low-power electronics; optical receivers; CCII; controlled impedance-matched differential inputs; current-conveyor based buffer; differential current-conveyor; frequency response; gain; high-bandwidth applications; input transducer characteristics; low-power current transducers; low-signal applications; modified class II current-conveyor cells; noise; optical front-end; output loads; wireless optical system; Circuit analysis; Circuit noise; Circuit simulation; Impedance; Integrated circuit interconnections; Optical buffering; Optical noise; Performance gain; System performance; Transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 1999. Proceedings of ICECS '99. The 6th IEEE International Conference on

Conference_Location

Pafos

Print_ISBN

0-7803-5682-9

Type

conf

DOI

10.1109/ICECS.1999.813260

Filename

813260