STRUTTURA EFFICIENTE DI INTEGRATORE A CAPACITA' COMMUTATE INTEGRATO

A switched capacitor integrator particularly suitable to realize low-pass filters without inducing noise on the nodes of the reference potentials of the integrator, is provided by halving the input capacitance during an operating phase, and by transferring the electric charge between the input switc...

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Bibliographic Details
Main Authors ANGELICI MARCO, BONARDI FELICE
Format Patent
LanguageItalian
Published 19.09.2000
Subjects
ANALOGUE COMPUTERS
BASIC ELECTRONIC CIRCUITRY
CALCULATING
COMPUTING
COUNTING
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
PHYSICS
RESONATORS
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Summary:A switched capacitor integrator particularly suitable to realize low-pass filters without inducing noise on the nodes of the reference potentials of the integrator, is provided by halving the input capacitance during an operating phase, and by transferring the electric charge between the input switched capacitance and the capacitor of integration of one and the other feedback branch of the differential amplifier, in a direct manner, that is, not referred to a fixed common potential. A unique current path is established, thus averting the effects caused by inevitable mismatches between the integrated capacitors.
Bibliography:Application Number: IT1999VA00007