Designing of Voltage Mode Universal filter Using Only Two CDBAs

In this paper, we use a single current differencing buffer amplifier (CDBA) in the current mode with application of voltage mode universal filter and all pass filter is presented. The proposed circuit is suitable for realize the proposed operation by using of two CDBA with the current processing application of filter design also we have driven the performance of CDBA. All-pass filter & Universal filter circuit was chosen as an application example in order to demonstrate the performance of the CDBA. The SPICE simulation results for frequency response as well as transient response are incorporated to verify the theory. These new configurations can realize all the five standard types of the filters, namely, low pass (LP), high pass (HP), band pass (BP), band stop (BS), and all pass (AP), from the same topology. The natural angular frequency (f), quality factor (Q) and the bandwidth (BW) parameters are also discussed. The 3dB frequency calculations are also described of all the five filters. The PSPICE simulation results are also included of all five filters. The performances of the proposed realization are shown with the help of experimental results simulated on PSPICE. The feasibility of the proposed work is well suited and explained with appropriate theory and simulation.