Despite the extensive literature on current conveyor-based voltage-mode multifunction biquads with single input and three outputs, no filter circuits have been reported to date which simultaneously achieve all of the advantageous features: (i) the employment of only one differential voltage current conveyor (DVCC), (ii) the employment of only two grounded capacitors, (iii) the employment of only three resistors, (iv) simultaneous realization of voltage-mode highpass, bandpass and lowpass filter signals from the three output terminals, respectively, (v) no need to employ inverting type input signals, (vi) no need to impose component choice, (vii) low passive sensitivity performance and (viii) simpler configuration due to the use of single DVCC only. This paper describes a novel voltage-mode multifunction biquadratic filter with single input and three outputs. The proposed configuration employs a single DVCC, two grounded capacitors and three resistors. The use of grounded capacitors makes the circuit suitable for integration because grounded capacitor circuit can compensate for the stay capacitances at their nodes. The proposed circuit has all the above features simultaneously, and without trade-offs. HSPICE simulation results based on using TSMC 0.35 μm CMOS model are included to verify the theoretical analysis.
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