Filtro Activo Pasa-Bajas de 2o Orden Sallen-and-Key a 100Hz: Una Propuesta de Diseño (A 100Hz Low-Pass 2nd Order Sallen-and-Key Active Filter: A Design Proposal)

Edgardo Benedicto Ortega Rosales (eortega@gdl.cinvestav.mx), Federico Sandoval Ibarra (sandoval@gdl.cinvestav.mx.)


Centro de Investigaciones y Estudios Avanzados (CINVESTAV)
This paper appears in: Revista IEEE América Latina

Publication Date: March 2014
Volume: 12,   Issue: 2 
ISSN: 1548-0992


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 2.0% at the cut-off frequency; the Op-Amp UA741 is used.

Index Terms:
Active filters, Butterworth approach, frequency domain, electric characterization, teaching   


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