CMOS operational amplifiers with continuous-time capacitive common mode feedback

Author

Ramirez-Angulo, Jaime ; Nargis, Ayesha ; Carvajal, Ramón G. ; López-Martin, Antonio

Author_Institution

Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA

fYear

2010

fDate

May 30 2010-June 2 2010

Firstpage

1280

Lastpage

1283

Abstract

A simple and power efficient approach for the implementation of continuous-time common mode feedback networks using a capacitive averaging network is introduced. It is shown that low voltage, continuous-time, fully differential rail to rail operation can be achieved using the proposed technique. This at the expense of very small additional hardware and no additional power dissipation One stage, two stage, telescopic and folded cascode op-amps are discussed as application examples.

Keywords

CMOS analogue integrated circuits; operational amplifiers; CMOS operational amplifiers; capacitive averaging network; continuous-time capacitive common mode feedback; continuous-time common mode feedback networks; folded cascode; op-amps; power dissipation; telescopic cascode; Bandwidth; CMOS technology; Capacitors; Circuits; Feedback; Hardware; Low voltage; Operational amplifiers; Power dissipation; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on

Conference_Location

Paris

Print_ISBN

978-1-4244-5308-5

Electronic_ISBN

978-1-4244-5309-2

Type

conf

DOI

10.1109/ISCAS.2010.5537266

Filename

5537266