Differential automatic gain-control amplifier having an enhanced

Details Differential automatic gain-control amplifier having an enhanced Differential automatic gain-control amplifier having an enhanced

1995-11-01

1996-12-24

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330254, H03F 345

Patent

active

055876889

ABSTRACT:
An enhanced differential amplifier circuit includes an injected inverted signal to the differential amplifier. As the AGC amplifier attenuates, the inverted signal becomes increasingly significant in the total gain ratio, thereby extending its operating range. Both a single current source and dual source implementation are disclosed.

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patent: 4459555 (1984-07-01), Jett, Jr.
patent: 4520324 (1985-05-01), Jett, Jr. et al.
patent: 4536717 (1985-08-01), Hauge et al.
patent: 4621238 (1986-11-01), Fenk
patent: 4864248 (1989-09-01), Jansen
patent: 5061901 (1991-10-01), Nicollini et al.

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