WSEAS Transactions on Circuits and Systems
Print ISSN: 1109-2734, E-ISSN: 2224-266X
Volume 21, 2022
ARC High Order Filters Suitable for Antialiasing and/or Reconstruction Filters
Author: Bohumil Brtník
Abstract: The discrete time signal processing circuit requires an anti-aliasing filter at the input and a reconstruction filter at the output, generally. In this paper, selected basic structures of some active filters are described and compared with a view to the degradation of the attenuation over the transient frequency of the operational amplifier. Firstly, the reasons for the degradation of the attenuation are explained theoretically. Secondly, these conclusions are verified by simulations. These simulations were performed by spice-like circuit simulator MicroCap version 11.
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Keywords: low-pass filter structure, real operational amplifier, frequency response, decreasing of the attenuation at the high frequencies, transient frequency of the operational amplifier
Pages: 94-99
DOI: 10.37394/23201.2022.21.10
WSEAS Transactions on Circuits and Systems, ISSN / E-ISSN: 1109-2734 / 2224-266X, Volume 21, 2022, Art. #10