A new multi-input single-output voltage-mode universal biquadratic filter with grounded passive elements and orthogonally adjustable filter parameters

A novel multiple-input, single-output (MISO) Voltage-Mode (VM) analog filter configuration composed of two plus-type differential voltage current conveyors (DVCC+) as active components moreover two capacitors and three resistors as passive elements is proposed in this paper. By selecting input voltage nodes in different orders, it is able to provide all five standard second-order filter responses in one topology. Also, it does not need any passive element matching condition; so the proposed filter is suitable for integrated circuit (IC) design. Further, it offers orthogonal control of quality factor (Q) and angular frequency (ω0), can be adjusted electronically. Further, to confirm the theoretical analysis, simulation results are investigated. TSMC 0.13 µm process parameters is applied to the circuit and voltage sources are selected as ±0.75 V and 0.2 V for VB , in this case the power consumption is found as 0.65 mW.