Bandwidth enhancement of CFOA based inverting amplifier

Kamath, D V and Mohan , Ananda P V and Prabhu, G K (2014) Bandwidth enhancement of CFOA based inverting amplifier. In: International Conference on Electronics and Communication System (lCECS -2014), Feb 2014.

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In this paper, we present an active 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.

Item Type: Conference or Workshop Item (Paper)
Additional Information: DOI: 10.1109/ECS.2014.6892763
Uncontrolled Keywords: Current-feedback op-amp (CFOA); Active compensation; Passive compensation
Subjects: Engineering > MIT Manipal > Biomedical
Engineering > MIT Manipal > Electronics and Communication
Depositing User: MIT Library
Date Deposited: 09 Sep 2014 11:36
Last Modified: 09 Sep 2014 11:36

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