Low-Sensitivity SAB Band-Pass Active-RC Filter Using Impedance Tapering (CROSBI ID 481306)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Jurišić, Dražen ; Moschytz, George S. ; Mijat, Neven
engleski
Low-Sensitivity SAB Band-Pass Active-RC Filter Using Impedance Tapering
The design procedure of low-sensitivity second-and third-order class-4 Sallen and Key active resistance-capacitance (RC) allpole filters, using impedance tapering, has already been published. There a ladder structure in the positive feedback loop of an operational amplifier was used. In this paper desensitization using impedance tapering is applied to class-3 circuits with negative feedback referred to as a single-amplifier biquad (SAB). The RC-section in the negative feedback loop is impedance scaled upwards, from the driving source to the negative amplifier input. Second-order band-pass filters are considered. The improvement comes free of charge; component count and topology remain unchanged, whereas the component values, selected for impedance tapering, account for the significant decrease in sensitivity to component tolerances.
low-sensitivity; single-amplifier biquad; active-RC filters; impedance tapering
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Podaci o prilogu
160-163-x.
2001.
objavljeno
Podaci o matičnoj publikaciji
Skellern, David; Hellestrand, Graham
Sydney: Institute of Electrical and Electronics Engineers (IEEE)
Podaci o skupu
2001 IEEE International Symposium on Circuits and Systems
predavanje
06.05.2001-09.05.2001
Sydney, Australija