Supplementary First-Order All-Pass Filters with Two Grounded Passive Elements Using FDCCII

In this study, two novel first-order all-pass filters are proposed using only one grounded resistor and one grounded capacitor along with a fully differential current conveyor (FDCCII). There is no element-matching restriction. The presented all-pass filter circuits can be made electronically tunabl...

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Bibliographic Details
Published in:Radioengineering 2011-06, Vol.20 (2), p.433-437
Main Authors: K. Pal, N. Herencsar, B. Metin
Format: Article
Language:English
Subjects:
all-pass filter
Analog filter
cascadable filter
FDCCII
grounded capacitor
high-Q band-pass filter
MOSFET based resistors
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Summary:In this study, two novel first-order all-pass filters are proposed using only one grounded resistor and one grounded capacitor along with a fully differential current conveyor (FDCCII). There is no element-matching restriction. The presented all-pass filter circuits can be made electronically tunable due to the electronic resistors. Furthermore, the presented circuits enjoy high-input impedance for easy cascadability. The theoretical results are verified with SPICE simulations.
ISSN:1210-2512