Equal-valued-capacitor active- RC -network realisation of a 3rd-order lowpass Butterworth characteristic

20 May 1971

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 7 (10) , 271-272
https://doi.org/10.1049/el:19710185

Abstract

The letter describes an active RC network which realises a 3rd-order lowpass Butterworth characteristic. It requires one active element and has the practical advantage that all capacitors have the same value. A design chart is included.

Keywords

BUTTERWORTH CHARACTERISTICS
LOW PASS FILTER
ACTIVE RESISTANCE CIRCUITS
EQUAL VALUED CAPACITOR
TRANSFER FUNCTION