Signal input to differential output amplifier

Details Signal input to differential output amplifier Signal input to differential output amplifier

1988-12-01

1989-12-05

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Including balanced to unbalanced circuits and vice versa

330295, 330277, H03F 368, H03F 316

Patent

active

048855502

ABSTRACT:
A single input, differential output amplifier (50) includes two Gallium Arsenide field effect transistors: one arranged to form a common gate amplifier (55) to provide a non-inventing output (60), and the other arranged to form a common source (65) amplifier to provide an inverting output (61). The input of each FET is connected to receive an input signal simultaneously thereby minimizing phase delay in the differential output signals. In another aspect of the invention, the non-inverting stage (55) is incorporated into the biasing network for the inverting ampllifier (65).

REFERENCES:
patent: 3863168 (1975-01-01), Beurrier
patent: 4558186 (1985-12-01), Stahl

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