Title :
Design of class AB output stages using the structural methodology
Author :
Ivanov, Vadim ; Filanovsky, Igor
Author_Institution :
Texas Instruments Inc., Tucson, AZ, USA
Abstract :
The structural design methodology is applied to class AB opamp output stages. As a starting point the stage generalized signal graph is proposed. The graphs of few common output stages are analyzed, and it is shown that this analysis helps to find their drawbacks. The general graphs may have many realizations, and the choice of cells for realization and generation of new circuit solutions for CMOS and bipolar output stages is outlined. The micropower bipolar and low-voltage (1.2 V) CMOS output stages are given as examples.
Keywords :
CMOS integrated circuits; bipolar integrated circuits; graphs; integrated circuit design; low-power electronics; network analysis; operational amplifiers; signal synthesis; 1.2 V; circuit solution generation; class AB opamp output stage; class AB output stage design; low-voltage CMOS output stage; micropower bipolar output stage; output stage graph analysis; stage generalized signal graph; structural design methodology; Buildings; Circuits; Design methodology; Energy consumption; Frequency; Instruments; Linearity; Nonlinear distortion; Transconductance; Voltage;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1328296
