Parasitic insensitive switched capacitor filter

Details Parasitic insensitive switched capacitor filter Parasitic insensitive switched capacitor filter

1987-07-06

1989-01-03

Wan, Gene

Amplifiers

Signal feedback

Phase shift means in loop path

330149, H03F 136

Patent

active

047959878

ABSTRACT:
A switched capacitor filter includes an amplifier in a feedback or feed-forward path thereof. The amplifier (A5, C6, S7,) has a gain dependent on the ratio of stray capacitances to the capacitors used in the filter so as to compensate for errors in filter characteristics which said stray capacitances would otherwise introduce.

REFERENCES:
patent: 4716388 (1987-12-01), Jacobs

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