Title :
A high-gain high-speed low-power class AB operational amplifier
Author :
Sarbishaei, Hassan ; Toosi, Tahereh Kahookar ; Tabasy, Ehsan Zhian ; Lotfi, Reza
Author_Institution :
Ferdowsi Univ., Mashhad
Abstract :
A gain-enhanced high-speed single-stage class-AB low-power op amp is presented. Positive feedback scheme is used to increase the voltage gain. On the other hand by utilizing current driven bulk technique the output voltage swing is improved. Employing two cross-coupled flipped-voltage-follower blocks, class-AB behavior is achieved to make the op amp compatible for high-speed low-power applications
Keywords :
CMOS analogue integrated circuits; high-speed integrated circuits; low-power electronics; operational amplifiers; class AB operational amplifier; flipped-voltage-follower blocks; high-gain operational amplifier; high-speed operational amplifier; low-power operational amplifier; Analog circuits; Boosting; Circuit synthesis; Energy consumption; Feedback amplifiers; Impedance; Operational amplifiers; Output feedback; Rails; Threshold voltage;
Conference_Titel :
Circuits and Systems, 2005. 48th Midwest Symposium on
Conference_Location :
Covington, KY
Print_ISBN :
0-7803-9197-7
DOI :
10.1109/MWSCAS.2005.1594091
