DocumentCode
3356321
Title
High performance current-feedback op-amps
Author
Tammam, A.A. ; Hayatleh, K. ; Hart, B. ; Lidgey, F.J.
Author_Institution
Sch. of Technol., Oxford Brookes Univ., UK
Volume
1
fYear
2004
fDate
23-26 May 2004
Abstract
This paper presents the designs of the two new CFOAs (current feedback op-amps), one employing a bootstrapping technique, the other a cascoding technique, that provide both high CMRR (common-mode rejection ratio) and slew rate. Moreover, the new CFOA designs exhibit a low DC offset voltage, high bandwidth, and improved gain accuracy, enabling them to be used in applications requiring variable closed-loop gains with constant bandwidth, such as in automatic-gain-control, video, graphics and multimedia applications.
Keywords
automatic gain control; bootstrap circuits; feedback amplifiers; operational amplifiers; DC offset voltage; automatic-gain-control; bootstrapping technique; cascoding technique; common-mode rejection ratio; current feedback op-amps; graphics; multimedia applications; operational amplifiers; slew rate; variable closed-loop gains; video; Bandwidth; Circuit simulation; Communication industry; Electronics industry; Feedback; Gain; Graphics; Industrial electronics; Low voltage; Operational amplifiers;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN
0-7803-8251-X
Type
conf
DOI
10.1109/ISCAS.2004.1328322
Filename
1328322
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