Current –mode Kerwin, Huelsman and Newcomb (KHN) By using CDTA

Abstract

: The first goal of the paper is to understand the properties of active filters. I studied the basic theory of operational amplifiers (Op Amps) and will show how they can be used together with capacitors and resistors to create any kind of filter in the audio frequency range. This work is focused on Kerwin, Huelsman, and Newcomb (KHN) filter which I have designed by Current Differencing Transconductance Amplifier (CDTA).