DEVELOPMENT OF CMOS BASED CURRENT DIFFERENCING BUFFERED TRANS CONDUCTANCE AMPLIFIER AND ITS APPLICATIONS

Abstract

The major goal of this work is to present a new CMOS realization for the current differencing buffered Trans Conductance amplifier (CDBTA). A design technique based on flipped voltage follower current sources is preferred to obtain a high performance CDBTA. The proposed circuit can operate with the minimum supply voltages of ±0.6 V. It also consumes less power .The proposed CDBTA has good voltage and current gain accuracies. The performance of the CDBTA is verified using SPICE. For the simulations, UMC 0.18 μ CMOS process is used. To verify the functionality of the proposed analog building block and to demonstrate its utility two applications namely a notch filter and a general impedance converter configuration are also proposed. The SPICE simulations results of these applications are in remarkable agreement with the theoretical results.