1993•International Journal of ElectronicsRequires access

Fully differential, current conveyor based CMOS operational amplifier

Igor Mucha

Abstract

A fully differential, voltage mode CMOS operational amplifier is presented. The connection of two ‘current feedback’ operational amplifiers results in a structure which allows a wide unity-gain bandwidth to be achieved, without the slew-rate limitation by a quiescent current present in the ordinary operational amplifier architecture. The operational amplifier is realized in a standard CMOS technology, and can be integrated together with digital functions.

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Available abstract

Key concepts: Operational amplifier, Current-feedback operational amplifier, Operational transconductance amplifier, Direct-coupled amplifier, Operational amplifier applications, Current conveyor, Fully differential amplifier, Slew rate