Method and apparatus for common mode control

Details Method and apparatus for common mode control Method and apparatus for common mode control

2006-05-30

2008-03-18

Choe, Henry (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S259000

Reexamination Certificate

active

07345544

ABSTRACT:
A common mode feedback circuit is provided that can set a direct voltage operating point of the outputs of an associated amplifier. The common mode feedback circuit can remain powered on during power down of the associated amplifier and maintain a large feedback loop capacitance (in the common mode feedback circuit) at an approximately normal operating voltage to advantageously reduce settling time of an associated amplifier that has been powered off.

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