Universal filter using operational transresistance amplifier

Abstract

In this paper proposes a multi input single output (MISO) third order voltage mode (VM) universal filter using only one operational transresistance amplifier (OTRA) is presented. The proposed circuit realizes lowpass, highpass, allpass, bandpass and notch responses from the same topology. The PSPICE simulation results using 0.5μm CMOS technology agree well with the theoretical design.