Voltage mode OTRA MOS-C single input multi output biquadratic universal filter

Abstract

In this paper, an Operational transresistance amplifier (OTRA) based MOS-C voltage mode single input multi output (SIMO) biquadratic universal filter configuration is proposed. The configuration is made fully integrated by implementing the resistors using matched transistors operating in the linear region. It exhibits the feature of orthogonal controllability of angular frequency and quality factor through gate bias voltage. The non-ideality analysis of the circuit is also given. Workability of the universal filter is demonstrated through PSPICE simulations using 0,5 μm CMOS process parameters provided by MOSIS (AGILENT).