FTFN BASED FILTERS DESIGNING AND ANALYSIS

Abstract

This thesis deals with the designing of filters using FTFN.As we know, there are many approaches to realize filters, we have adopted the device replacement method where the active device is replaced by FTFN.As FTFN has not been designed yet, therefore it is we realize it only by other devices like conveyors ,op amp & OTAs. We have realized FTFN using CFOAs(AD844) and further we are using this FTFN in designing of filters like bandpass, low pass & high pass filters. In designing of these second order filters, minimum number of components are used i.e. two capacitors and two resistors in different configurations to get the output .Two configurations of circuits has been designed where configuration 1 is an example of MISO system consisting of three inputs and one outputs whereas in configuration 2 ,we are using only one input to get the output to realize different filters.