“IMPLEMENTATION AND DESIGN OF ANALOG SIGNAL PROCESSING BY USING OTRA”

Abstract

OTRA is a current controlled voltage source. It has two low input impedance and one low output impedance terminals and its bandwidth is independent of closed loop voltage gain. Simulation results are presented to demonstrate the constant bandwidth performance. In this project firstly the internal circuits of Operational Transresistance amplifiers (OTRA) have been designed and simulated. Application of the OTRA in realizing continuous time voltage mode filters that benefits from the current processing capabilities at the input terminals of OTRA are presented. These are designed using minimum OTRA and minimum external passive elements and can realize first, second and third order filters. Specifically all pass, low pass, high pass and notch filters are designed using OTRA. A detailed analysis taking the effect of the finite transresistance gain into consideration is provided. A parasitic capacitance insensitive highly linear, MOSFET-C differentiator with reduced no of capacitors an...