Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2007-12-25
2007-12-25
Nguyen, Khanh Van (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S260000
Reexamination Certificate
active
11504348
ABSTRACT:
An amplifier circuit includes first, second, third and fourth transconductance amplifiers that each have an input, an output and a transconductance gain. The outputs of the first, second and third amplifiers communicate with the inputs of the second, third and fourth amplifiers, respectively. A first resistance has ends that communicate with the input and the output of the second amplifier, respectively. A second resistance has ends that communicate with the input and the output of the fourth amplifier, respectively. Fifth, sixth, seventh and eighth amplifiers each have an input, an output and a gain. The outputs of the fifth, sixth and seventh amplifiers communicate with the inputs of the sixth, seventh and eighth amplifiers, respectively. A third resistance has one end that communicates with the input of the first amplifier and an opposite end that communicates with the output of the eighth amplifier.
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Marvell International Ltd.
Nguyen Khanh Van
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