A ready-to-use design procedure for operational transconductance amplifiers that minimizes power consumption

Author

Gerosa, Andrea

Author_Institution

DEI, Padova Univ., Italy

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

949

Abstract

A procedure to be used during the design of an operational transconductance amplifier (OTA) is proposed in this work. The procedure is based on a set of simplified equations, which describes the OTA performance as a function of transistor size and bias current. These equations have been previously investigated in the literature; however, a suitable method to deal with the many degrees of freedom must be worked out. This work proposes for the design of a switched capacitor stage a possible approach to produce a power optimized OTA. The design of a folded-cascode amplifier is proposed in order to validate the procedure

Keywords

circuit optimisation; electric current; network synthesis; operational amplifiers; switched capacitor networks; OTA design procedure; OTA performance; bias current; design equations; design procedure; folded-cascode amplifier; minimized power consumption; operational transconductance amplifiers; power optimized OTA; switched capacitor stage; transistor size; Algorithm design and analysis; Capacitors; Circuit noise; Design optimization; Energy consumption; Equations; Filters; Operational amplifiers; Power amplifiers; Transconductance;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2001. ICECS 2001. The 8th IEEE International Conference on

Print_ISBN

0-7803-7057-0

Type

conf

DOI

10.1109/ICECS.2001.957630

Filename

957630