Multi-mode amplifier arrangement and method for controlling...

Details Multi-mode amplifier arrangement and method for controlling... Multi-mode amplifier arrangement and method for controlling...

2007-05-22

2009-10-20

Nguyen, Khanh V (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S258000, C330S261000

Reexamination Certificate

active

07605657

ABSTRACT:
A multi-mode amplifier arrangement comprises an amplifier having a plurality of field effect transistors selectable in response to a control signal at a control terminal, said plurality of field effect transistors coupled to an input terminal to receive a signal to be amplified, said amplifier arranged between a supply terminal and a ground terminal. A tunable current source is coupled to the amplifier to provide in operation of the amplifier a constant drain current through the plurality of field effect transistors.

REFERENCES:
patent: 6985036 (2006-01-01), Bhattacharjee et al.
patent: 7154329 (2006-12-01), Douglas
patent: 7233204 (2007-06-01), Kim et al.

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