Title :
Symmetrical CMOS operational amplifier
Author :
Stanescu, Cornel ; Hanganu, Alexandru
Author_Institution :
ICCE, Bucharest, Romania
Abstract :
A CMOS operational amplifier having a symmetrical architecture is presented in comparison with the basic two-stage CMOS op amp. A small-signal equivalent model is derived for evaluation. SPICE simulations are used to verify the accuracy of the analytical evaluation and to emphasize the improvements in terms of common-mode range, frequency response and output current capability
Keywords :
CMOS analogue integrated circuits; SPICE; circuit analysis computing; differential amplifiers; equivalent circuits; frequency response; linear network analysis; operational amplifiers; CMOS operational amplifier; SPICE simulations; common-mode range; frequency response; output current capability; small-signal equivalent model; symmetrical architecture; two-stage op amp; Circuits; Frequency; Operational amplifiers; Semiconductor device modeling; Signal design; Threshold voltage;
Conference_Titel :
Semiconductor Conference, 1995. CAS'95 Proceedings., 1995 International
Conference_Location :
Sinaia
Print_ISBN :
0-7803-2647-4
DOI :
10.1109/SMICND.1995.495036
