1.1 V class AB output stage in standard 0.8 μm CMOS technology

Author

Fiocchi, C. ; Gatti, U.

Author_Institution

Italtel Soc. Italiana Telecommun. SpA, Milan, Italy

fYear

1997

fDate

12-13 Sep 1997

Firstpage

28

Lastpage

31

Abstract

An operational amplifier based on an innovative approach capable to solve the problem of low voltage for rail-to-rail output stages is presented. It allows to correctly operate with voltage supply as low as 1.1 V. Its excellent performance outperforms state-of-the-art realisations and makes it suitable to be used for low voltage applications. In particular, the class AB output stage shows a quiescent current of 150 μA, while it guarantees a peak output current of ±2.5 mA in slewing conditions and a positive slew-rate of 25 V/μs with a load of 20 pF. The output voltage range reaches both rails within 50 mV

Keywords

CMOS analogue integrated circuits; differential amplifiers; operational amplifiers; -2.5 mA; 0.8 micron; 1.1 V; 150 muA; 2.5 mA; CMOS technology; LV op amp; class AB output stage; low voltage operation; operational amplifier; rail-to-rail output stage; slewing conditions; Analog circuits; CMOS technology; Circuit topology; Diodes; Explosions; Low voltage; Mirrors; Operational amplifiers; Rail to rail outputs; Research and development;

fLanguage

English

Publisher

ieee

Conference_Titel

Analog and Mixed IC Design, 1997. Proceedings., 1997 2nd IEEE-CAS Region 8 Workshop on

Conference_Location

Baveno

Print_ISBN

0-7803-4240-2

Type

conf

DOI

10.1109/AMICD.1997.637186

Filename

637186