CMOS transconductance amplifiers, architectures and active filters: a tutorial

Author

Sánchez-Sinencio, E. ; Silva-Martínez, J.

Author_Institution

Analog Mixed-Signal Center, Texas A&M Univ., College Station, TX, USA

Volume

147

Issue

1

fYear

2000

fDate

2/1/2000 12:00:00 AM

Firstpage

3

Lastpage

12

Abstract

An updated version of a tutorial paper (see IEEE Circuits Devices Mag., vol. 2, no. 1, p. 20-32, 1985) on active filters using operational transconductance amplifiers (OTAs) is presented. The integrated circuit issues involved in active filters (using CMOS transconductance amplifiers) and the progress in this field in the last 15 years is addressed. CMOS transconductance amplifiers, nonlinearized and linearized, as well as frequency limitations and dynamic range considerations are reviewed. OTA-C filter architectures, current-mode filters, and other potential applications of transconductance amplifiers are discussed

Keywords

CMOS analogue integrated circuits; active filters; current-mode circuits; linearisation techniques; operational amplifiers; CMOS OTA; CMOS transconductance amplifiers; OTA-C filter architectures; active filters; amplifier architectures; current-mode filters; dynamic range; frequency limitations; integrated circuit; linearized type; nonlinearized type; operational transconductance amplifiers;

fLanguage

English

Journal_Title

Circuits, Devices and Systems, IEE Proceedings -

Publisher

iet

ISSN

1350-2409

Type

jour

DOI

10.1049/ip-cds:20000055

Filename

836505