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All-grounded passive element voltage-mode universal filter using single DDCCTA
Author(s)
Date Issued
January 1, 2012
Type
Conference Paper
Abstract
In this paper, a novel single-input three-output (SITO) second-order multifunction active voltage filter with high-input impedance is proposed. The proposed circuit employs one differential difference current conveyor transconductance amplifier (DDCCTA) as active element together with one grounded resistor and two grounded capacitors as passive elements. The circuit offers the following attractive features : (i) the simultaneous realization of lowpass, bandpass and highpass responses from the same topology, (ii) no requirements for component matching conditions, (iii) electronic controllability of important filter parameters, (iv) simpler structure due to contains only one DDCCTA and three passive elements, and (v) low sensitivity performance. To confirm the theoretical analysis, PSPICE simulation results are included using 0.5 \xm MIETEC CMOS technology parameters.
Citation
Lecture Notes in Engineering and Computer Science, 2196, 1059-1062, 2012