FVF based CDTA and Its application

This paper presents a modified CMOS implementation of the current differencing trans-conductance amplifier (CDTA). It uses one current source and one current sink to get the current differencing action. The proposed circuit uses lesser number of transistors, offers higher bandwidth, apart from other qualities associated with them. An application of this CDTA in analog filter is also demonstrated. All the claims have been verified by SPICE program. The simulation results are in agreement with the theoretical results.