Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2006-02-07
2006-02-07
Shingleton, Michael B. (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S253000, C330S254000
Reexamination Certificate
active
06995611
ABSTRACT:
An inductive amplifier having a feed forward boost is provided, thereby improving the gain of the inductive amplifier at frequencies greater than 1 GigaHertz. The inductive amplifier includes a feed-forward boost circuit coupled to intermediate nodes of an inductive amplifier circuit, whereby the feed-forward boost circuit generates boost currents that are added to the currents of the inductive amplifier circuit. In one embodiment, the feed-forward boost circuit includes a boost current supply, a first boost transistor coupled between the current supply and a first intermediate node of the inductive amplifier circuit, and a second boost transistor coupled between the current supply and a second intermediate node of the inductive amplifier circuit. In one embodiment, the first and second boost transistors and the inductive amplifier circuit are controlled by the same differential input signals.
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Kanzaki Kim
Maunu LeRoy D.
Shingleton Michael B.
Xilinx , Inc.
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