Title :
A 100Hz Low-Pass 2nd Order Sallen-and-Key Active Filter: A Design Proposal
Author :
Rosales, E.B.O. ; Ibarra, F.S.
Author_Institution :
Centro de Investig. y Estudios Av. (CINVESTAV) Unidad-Guadalajara, Zapopan, Mexico
Abstract :
This paper presents a design methodology for developing a Butterworth type 100Hz low-pass second order Sallen-and-Key active filter. The proposed design method is intended to design filtering systems based on commercial components. Since these components have tolerances, a relative sensitivity analysis is included in order to satisfy design specifications. Experimental results show a maximum relative error, εr=2.0%, at the cut-off frequency; the Op-Amp UA741 is used.
Keywords :
Butterworth filters; active filters; low-pass filters; operational amplifiers; Butterworth filter; Sallen-and-Key active filter; filtering systems; frequency 100 Hz; low-pass filter; op-amp UA741; relative sensitivity analysis; second order active filter; Active filters; Design methodology; Frequency-domain analysis; Sensitivity analysis; Active filters; Butterworth approach; electric characterization; frequency domain; teaching;
Journal_Title :
Latin America Transactions, IEEE (Revista IEEE America Latina)
DOI :
10.1109/TLA.2014.6749520
