Title :
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
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;
Conference_Titel :
Devices, Circuits and Communications (ICDCCom), 2014 International Conference on
Conference_Location :
Ranchi
DOI :
10.1109/ICDCCom.2014.7024748
