Low-voltage low-power CMOS current conveyors

Author

Elwan, Hassan O. ; Soliman, Ahmed M.

Author_Institution

Dept. of Electron. & Commun. Eng., Cairo Univ., Egypt

Volume

44

Issue

9

fYear

1997

fDate

9/1/1997 12:00:00 AM

Firstpage

828

Lastpage

835

Abstract

New CMOS rail to rail second generation current conveyor circuits are proposed. First a class A current conveyor circuit which operates from a single supply of 1.5 V with a rail to rail voltage swing capability is given. The circuit is then modified to work as a class AB while maintaining the rail to rail swing capability. The class AB circuit works from supply voltages down to +1.1 V with standby current of 56 μA. These new current conveyor realizations are insensitive to the threshold voltage variation caused by the body effect, which minimizes the layout area and makes both circuits a valuable addition to the analog VLSI libraries. PSpice simulation confirms the attractive properties of the proposed circuits

Keywords

CMOS analogue integrated circuits; SPICE; VLSI; circuit analysis computing; current conveyors; network parameters; 1.1 to 1.5 V; 56 muA; CMOS current conveyors; PSpice simulation; analog VLSI libraries; body effect; class AB circuit; layout area; rail to rail second generation circuits; standby current; threshold voltage variation; voltage swing capability; Bandwidth; Circuit simulation; Energy consumption; Frequency; Low voltage; Operational amplifiers; Rails; Software libraries; Threshold voltage; Very large scale integration;

fLanguage

English

Journal_Title

Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on

Publisher

ieee

ISSN

1057-7122

Type

jour

DOI

10.1109/81.622987

Filename

622987