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Versatile voltage-mode multifunction biquadratic filter employing only eight single-ended OTAs and two grounded capacitors
Date Issued
October 17, 2012
Type
Conference Paper
Abstract
This paper presents a new versatile multifunction voltage-mode biquadratic filter with three inputs and four outputs employing single-ended operational transconductance amplifiers (OTAs) and grounded capacitors. The proposed circuit provides the following advantages: (i) employment single-ended OTA and grounded capacitor which is highly suitable for integrated circuit implementation, (ii) simultaneously realize voltage-mode low-pass, band-pass, highpass, band-stop and all-pass filter responses by appropriately connecting the input and output terminals, (iii) no need to employ inverting-type input signals and component-matching condition for realizing these filter responses, (iv) orthogonal set the natural frequency and the quality factor, (v) electronic control the natural frequency, (vi) low active and passive sensitivities. The workability of the proposed filter is confirmed by PSPICE simulator. From simulation results, it can be expressed that the proposed circuit agrees well with theory. © 2012 IEEE.
Citation
Proceedings 2012 4th International Conference on Computational Intelligence Communication Systems and Networks Cicsyn 2012, 441-444, 2012