Differential active filter of the second order

Details Differential active filter of the second order Differential active filter of the second order

1996-04-16

1997-12-16

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330306, H03F 345, H03F 3191

Patent

active

056990162

ABSTRACT:
A differential amplifier filter with two channels in phase opposition, wherein each channel includes the same network of passive components which includes two impedances coupled in series between a first input terminal of the filter and a corresponding input of the differential amplifier, a feed-forward impedance coupled between a common node of the two series impedances and an output of the same channel of the differential amplifier, and a feedback impedance coupled between a second input of the differential amplifier and an output of the other channel of the differential amplifier.

REFERENCES:
patent: 4926135 (1990-05-01), Voorman
patent: 5063356 (1991-11-01), Voorman
patent: 5105163 (1992-04-01), Voorman
French Search Report from French Patent application 95 05239, filed Apr. 26, 1995.

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