Active compensation of CFOA based non-inverting amplifier

Kamath, D V and Ashoka, A (2015) Active compensation of CFOA based non-inverting amplifier. International Journal of Innovative Research in Electrical, Electronics, Instrumentation and Control Engineering (IJIREEICE), 3 (9). ISSN 2321 – 5526

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Abstract

In this paper, we consider active compensation techniques using a voltage buffer to enhance the bandwidth of current feedback operational amplifier (CFOA) based finite gain non-inverting voltage amplifier. The use of feedforward capacitor in addition to voltage buffer is shown to achieve minimum phase error in the resulting frequency response. 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.

Item Type: Article
Uncontrolled Keywords: Current-feedback op-amp (CFOA); Active compensation; Passive compensation
Subjects: Engineering > MIT Manipal > Information and Communication Technology
Depositing User: MIT Library
Date Deposited: 25 Oct 2016 14:27
Last Modified: 25 Oct 2016 14:27
URI: http://eprints.manipal.edu/id/eprint/147405

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