Bandwidth enhancement of CFOA based inverting amplifier

Dattaguru V. Kamath, P. V.Ananda Mohan, K. Gopalakrishnaprabhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we present anactive compensation method using a voltage buffer to enhance the bandwidth of current feedback operational amplifier (CFOA) based finite gain inverting voltage amplifier for use as stand-alone amplifier. The use of feedback capacitor to this circuit for realizing Butterworth response is also considered. The proposed circuits require one additional CFOA/capacitor. The effect of finite output impedance at z terminal, input resistance at x terminal, and current mirror pole of the CFOA are studied. The circuits considered have been simulated in PSPICE using a behavioral macro-model of the CFOA as well as that of a practical CFOA AD 844.

Original languageEnglish
Title of host publication2014 International Conference on Electronics and Communication Systems, ICECS 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479923205
DOIs
Publication statusPublished - 2014
Event2014 International Conference on Electronics and Communication Systems, ICECS 2014 - Coimbatore, India
Duration: 13-02-201414-02-2014

Conference

Conference2014 International Conference on Electronics and Communication Systems, ICECS 2014
CountryIndia
CityCoimbatore
Period13-02-1414-02-14

Fingerprint

Feedback amplifiers
Operational amplifiers
Bandwidth
Networks (circuits)
Capacitors
Electric potential
SPICE
Macros
Poles
Mirrors
Feedback

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Hardware and Architecture
  • Computer Networks and Communications

Cite this

Kamath, D. V., Mohan, P. V. A., & Gopalakrishnaprabhu, K. (2014). Bandwidth enhancement of CFOA based inverting amplifier. In 2014 International Conference on Electronics and Communication Systems, ICECS 2014 [6892763] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECS.2014.6892763
Kamath, Dattaguru V. ; Mohan, P. V.Ananda ; Gopalakrishnaprabhu, K. / Bandwidth enhancement of CFOA based inverting amplifier. 2014 International Conference on Electronics and Communication Systems, ICECS 2014. Institute of Electrical and Electronics Engineers Inc., 2014.
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Kamath, DV, Mohan, PVA & Gopalakrishnaprabhu, K 2014, Bandwidth enhancement of CFOA based inverting amplifier. in 2014 International Conference on Electronics and Communication Systems, ICECS 2014., 6892763, Institute of Electrical and Electronics Engineers Inc., 2014 International Conference on Electronics and Communication Systems, ICECS 2014, Coimbatore, India, 13-02-14. https://doi.org/10.1109/ECS.2014.6892763

Bandwidth enhancement of CFOA based inverting amplifier. / Kamath, Dattaguru V.; Mohan, P. V.Ananda; Gopalakrishnaprabhu, K.

2014 International Conference on Electronics and Communication Systems, ICECS 2014. Institute of Electrical and Electronics Engineers Inc., 2014. 6892763.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Kamath DV, Mohan PVA, Gopalakrishnaprabhu K. Bandwidth enhancement of CFOA based inverting amplifier. In 2014 International Conference on Electronics and Communication Systems, ICECS 2014. Institute of Electrical and Electronics Engineers Inc. 2014. 6892763 https://doi.org/10.1109/ECS.2014.6892763