DVCCTA based High Input Impedance VIVO Biquad Filter

A new topology proposing a biquad filter (BF) whose design based on only one newly introduced active element namely, DVCCTA is studied in this paper which uses five passive components too. On inputting the voltage signal at one of the high impedance input port of DVCCTA, three voltage-type filtering outputs as LP, HP, and BP are simultaneously realized by the reported BF. Therefore, the proposed BF can be termed as voltage mode (VM) or voltage input voltage output (VIVO) filter. The circuit is featured with the considerable less value of total harmonic distortion (THD), sensitivity, and current tuning capability of the pole frequency (ω
₀
) etc. Lastly, the performance of BF has been tested and verified via PSPICE in 180nm CMOS technology.