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Design Methodology of a Capacitor for a Switched Capacitor Filter Accurate to a Capacitance Ratio and Insensitive to a Process Deviation

Katsuhiro FURUKAWA

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Summary :

This letter proposes a design methodology of a capacitor for a switched capacitor filter. The capacitor design method makes the capacitor accurate to the capacitance ratio and insensitive to the process deviation. The SCF designed is used for the PCM CODEC filter and the deviation of the frequency characteristic is below 0.05 dB for a process deviation 0.5 µm in 5 µm CMOS process.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E85-A No.5 pp.1172-1175
Publication Date
2002/05/01
Publicized
Online ISSN
DOI
Type of Manuscript
LETTER
Category
Analog Signal Processing

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