A New CFA Based Current-Mode Universal Biquad Filter

Syed Naseem Ahmad¹ and Anisur Rehman Nasir^1,

¹Department of Electronics and Communication Engineering, Jamia Millia Islamia, New Delhi, India

Cite this paper

Syed Naseem Ahmad and Anisur Rehman Nasir. A New CFA Based Current-Mode Universal Biquad Filter. American Journal of Electrical and Electronic Engineering. 2014; 2(2):48-50. doi: 10.12691/AJEEE-2-2-3

Abstract

The paper presents a new current-mode second order universal filter with single input and three outputs using two current feedback amplifiers, two grounded capacitors, two grounded resistors and only one floating resistor. The circuit implements lowpass, band-pass and high-pass filter functions simultaneously without changing configuration and passive components. All the passive components are grounded except one floating resistor. The grounded capacitors make circuit suitable for integration. The circuit has low active and passive sensitivities. Simulation results agree well with the theoretical analysis.

Keywords

current feedback amplifier, current mode circuits, analog filter

Copyright

This work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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