DocumentCode
3300898
Title
Improving the high-frequency response of the folded-cascode amplifiers
Author
Silva-Martinez, Jose ; Carreto-Castro, Flora
Author_Institution
Nat. Inst. of Astrophys. Opt. & Electron., Puebla, Mexico
Volume
1
fYear
1996
fDate
12-15 May 1996
Firstpage
500
Abstract
In this paper, a technique that improves the phase response of the folded cascode Operational Transconductance Amplifiers (OTAs) is presented. It is shown that with two extra connections the effects of the high frequency poles are minimized and the parasitic oscillations, due to limited phase margin, are further reduced. Therefore, without additional components, the phase margin of the classical folded cascode OTA is improved and the capacitive loaded amplifier settles faster
Keywords
CMOS analogue integrated circuits; differential amplifiers; frequency response; operational amplifiers; poles and zeros; cascode OTA; folded-cascode amplifiers; high frequency poles; high-frequency response; operational transconductance amplifiers; parasitic oscillations reduction; phase response; CMOS technology; Capacitors; Degradation; Frequency; Optical amplifiers; Poles and zeros; Semiconductor optical amplifiers; Transconductance; Transistors; VHF circuits;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on
Conference_Location
Atlanta, GA
Print_ISBN
0-7803-3073-0
Type
conf
DOI
10.1109/ISCAS.1996.539994
Filename
539994
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