Negative-feedback amplifier circuit capable of independently con

Details Negative-feedback amplifier circuit capable of independently con Negative-feedback amplifier circuit capable of independently con

1997-09-29

2000-02-22

Mottola, Steven J.

Amplifiers

With semiconductor amplifying device

Including plural stages cascaded

330 99, 330100, H03F 122, H03F 134

Patent

active

060284870

ABSTRACT:
A plurality of field effect transistors (FET's) (11, 12) are coupled in cascode connection. A drain of the final-stage FET (12) is coupled to a gate of the first-stage FET (11) through a first negative-feedback circuit (13). A drain of the first-stage FET (11) is coupled to the gate of the first-stage FET (11) through a second negative-feedback circuit (14). The first negative-feedback circuit (13) is connected to a first resistor (Rf1) while the second negative-feedback circuit (14) is connected to a second resistor (Rf2).

REFERENCES:
patent: 3707685 (1972-12-01), Geffe
patent: 3733514 (1973-05-01), Garuts
patent: 4453132 (1984-06-01), Stanler
patent: 4940949 (1990-07-01), Landi
patent: 5015968 (1991-05-01), Podell et al.
patent: 5049835 (1991-09-01), Vasile
patent: 5144266 (1992-09-01), Dougherty et al.
patent: 5376899 (1994-12-01), Pass
R. Jindal--Gigahertz-Band High-Gain Low-Noise AGC Amplifiers in Fine-Line NMOS; IEEE Journal of Solid-State Circuit, vol. SC-22, No.4, Aug. 1987; pp 512-521.

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