Open AccessA Novel Current Mode Multifunction Inverse Filter using Single CFA
Author(s) -
Anisur Rehman Nasir,
Syed Naseem Ahmad
Publication year - 2021
Publication title -
international journal of innovative technology and exploring engineering
Language(s) - English
Resource type - Journals
ISSN - 2278-3075
DOI - 10.35940/ijitee.h9235.0610821
Subject(s) - high pass filter , inverse , band pass filter , filter (signal processing) , inverse filter , low pass filter , realization (probability) , active filter , computer science , electronic filter topology , control theory (sociology) , current (fluid) , electronic engineering , topology (electrical circuits) , engineering , mathematics , electrical engineering , artificial intelligence , computer vision , geometry , statistics , control (management) , voltage
A novel current-mode multifunction inverse filter configuration using single current feedback amplifier (CFA) is presented. The proposed filter employs only one CFA and few passive components. The proposed circuit realizes inverse lowpass, inverse bandpass and inverse highpass filter functions with proper admittances. The characteristics of proposed multifunction inverse filter configuration are- current-mode realization; use of only one CFA; use of grounded passive components except one virtually grounded and realizing all three basic inverse filters. The proposed current-mode inverse filter circuit has been tested by TINA PRO simulation program and results justified the theoretical analysis.