Two Rail-To-Rail Class-AB CMOS Buffers with High Performance Slew Rate and Delay

Author

Sundari, A.B.T. ; Srinivasulu, A. ; Bhagirath, T.N.

Author_Institution

Dept. of Electron. & Commun. Eng., VFSTR Univ. (Vignan Univ.), Valamudi, India

fYear

2014

fDate

12-13 Sept. 2014

Firstpage

1

Lastpage

6

Abstract

Two rail-to-rail class-AB buffers with high driving capability and high speed are presented. One circuit uses two complementary differential flipped voltage follower (DFVF) transconductor circuits and other circuit uses two complementary differential flipped voltage follower transconductors with current sensing transistor. These proposed class-AB buffers are boosted by a pair of adaptive biasing circuit´s using current sink and current source. The proposed buffers have exhibited high slew rate than the previous circuits. The circuits are implemented and the results analyzed using Cadence software in 0.18 μm CMOS technology.

Keywords

CMOS analogue integrated circuits; buffer circuits; operational amplifiers; Cadence software; DFVF transconductor circuits; adaptive biasing circuit; complementary differential flipped voltage follower transconductors; current sensing transistor; current sink; current source; driving capability; high performance slew rate; rail-to-rail class-AB CMOS buffers; size 0.18 mum; CMOS integrated circuits; CMOS technology; Mirrors; Rails; Sensors; Transconductance; Transistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Devices, Circuits and Communications (ICDCCom), 2014 International Conference on

Conference_Location

Ranchi

Type

conf

DOI

10.1109/ICDCCom.2014.7024748

Filename

7024748