Open AccessMultifunction Filter/Inverse Filter Configuration Employing CMOS CDBAs
Author(s) -
Ram Bhagat,
D. R. Bhaskar,
Pragati Kumar
Publication year - 2019
Publication title -
international journal of recent technology and engineering
Language(s) - English
Resource type - Journals
ISSN - 2277-3878
DOI - 10.35940/ijrte.d9476.118419
Subject(s) - low pass filter , active filter , filter (signal processing) , electronic filter topology , m derived filter , high pass filter , cmos , electronic engineering , voltage controlled filter , prototype filter , band pass filter , constant k filter , butterworth filter , inverse , filter design , capacitor input filter , all pass filter , computer science , electrical engineering , engineering , voltage , mathematics , geometry
A voltage-mode (VM) multifunction configuration for the realization of conventional active filters and inverse active filters (IAF) using two current differencing buffered amplifiers and six passive elements has been presented. The proposed structure can realize low pass filter/inverse low pass filter (LPF/ILPF), high pass filter /inverse high pass filter (HPF/IHPF), and band pass filter/ Inverse band pass filter (BPF/IBPF) from the same circuit topology by appropriate choice(s) of the branch impedance(s). PSPICE simulations with CMOS current differencing buffered amplifiers implemented in 0.18µm CMOS TSMC technology have been presented to establish the workability of the proposed circuit configuration.