Single CMOS VCII Based Inverse Filter Configuration

Inverse filters are frequently employed in various areas of signal processing, control systems, instrumentation, and communication to recover a distorted signal. This paper presents a generalized structure of a second generation voltage conveyor (VCII)-based voltage-mode (VM) multifunction inverse filter structure employing one VCII- and three admittances. The proposed structure can realize, inverse low pass filter (ILPF), inverse high pass filter (IHPF), and inverse band pass filter (IBPF) from the same circuit configuration by choosing appropriate combination of the different admittances. PSPICE simulations employing 180nm TSMC CMOS technology characteristics are used to validate the applicability of the suggested filter functions. śThe sensitivity, monte-carlo, temperature, and output noise analyses are carried out to test the effectiveness of the proposed inverse filter structure.