Frequency selective circuits using Op-Amp based simulated inductor

When realization of micro circuits are in the forefront, the necessity for using micro components which occupies less space and free from radiation are on the move. Out of the three passive components resistor, capacitor and inductor, it is the inductor which creates problem when it is to be employed for very low frequencies. The inductor at very low frequency requires high value of L which in turn makes it difficult to fabricate in IC form. This paper deals with a proposed passive component of a simulated inductor which can be used for very low frequencies and free from radiation effect. An application to validate its use is shown with simulation results using the analog simulator PSPICE.