CURRENT DIFFERENCING DIFFERENTIAL INPUT TRANSCONDCUTANCE AMPLIFIER AND ITS APPLICATION

Abstract

Ever since the introduction of current conveyor as basic building block in analog signal processing, several alternative active building blocks have been introduced so far. This has become attainable due to the developments in the semiconductor manufacturing technologies (both bipolar as well as CMOS). throughout the last twenty years, various modifications have been done in the architecture of the current conveyor and many derivatives of this block have appeared in the literature. Current differencing differential input transconductance amplifier combines the features of a current differencing unit (current conveyor) and an operational transconductance amplifier. Current differencing differential input transconductance amplifier can be used to perform the entire regular signal processing application such as amplifier, integrator, differentiator and filters etc. The present work deals with the signal processing application of current differencing differential input transconductance amplifier in filters. In this thesis, we have proposed various circuits which is based on current differencing differential input transconductance amplifier. All the circuits given during this thesis are simulated in PSpice.