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High input impedance voltage-mode universal filter using OTAs and grounded capacitors
Author(s)
Date Issued
January 1, 2011
Type
Conference Paper
Abstract
This paper presents a new high input impedance electronically tunable voltage-mode biquadratic filter with single input and multiple outputs using six single-ended operational transconductance amplifiers and two grounded capacitors. The proposed filter provides low-pass, band-pass and high-pass voltage responses at a high input impedance terminal, which enables easy cascadability of the voltage circuit. The parameters o and Q can also be set orthogonally by adjusting the circuit components. No critical matching condition and no inverting-type input signal are required for the realizing of all the filter responses and all the active and passive sensitivities are low. A non-ideal analysis of the circuit is carried out and the simulation results verifying the performances of the proposed circuit are also included. © 2011 IEEE.
Citation
Proceedings 2011 IEEE International Conference on Control System Computing and Engineering Iccsce 2011, 58-61, 2011