Switched capacitor filter

Details Switched capacitor filter Switched capacitor filter

1985-02-20

1986-11-18

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

333 19, 328151, 330 9, H03H 1700, H03H 1900

Patent

active

046238549

ABSTRACT:
A switched capacitor filter having the same value of capacitance for the integrating capacitor of each filter channel. The use of the same value capacitance results in DC offset voltages for each channel being identical and easy to correct. An input voltage divider network having a separate output tap for each channel causes each channel to have a unique filter transfer function despite the equal value of all integrating capacitors.

REFERENCES:
patent: 4344050 (1982-08-01), Callahan
Pandel-"Sequential Voltage-Inversion Principle for Switched-Capacitor Filters", Electronics Letters Jun. 21, 1979, vol. 15, No. 13; pp. 399-400.

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