Signal dependent biasing scheme for an amplifier

Details Signal dependent biasing scheme for an amplifier Signal dependent biasing scheme for an amplifier

2007-08-21

2007-08-21

Choe, Henry (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S254000

Reexamination Certificate

active

11171818

ABSTRACT:
In one embodiment, the present invention includes an apparatus having a first amplifier stage to receive an input voltage and to provide an amplified output voltage at an output terminal, where the first amplifier stage is controlled by a first bias current. The apparatus may further include a second amplifier stage coupled to receive a control voltage and to provide an offset voltage to the output terminal, where the second amplifier stage is controlled by a second bias current. The first and second bias currents may be controlled by a single bias controller.

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