Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2006-05-09
2006-05-09
Choe, Henry (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S069000
Reexamination Certificate
active
07042291
ABSTRACT:
A balanced amplifier comprising a pair of voltage-to-current converters including a first input terminal, a second input terminal, a first output terminal and a second output terminal to convert an input voltage applied to the first input terminal into an output current output from each of the first output terminal and the second output terminal, the second input terminal and the second output terminal of one of the converters being connected to the second input terminal and the second output terminal of the other of the converters to cancel common-mode components each other and extract differential-mode components.
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Zdzislaw Czarnul, et al., “Design of Ully Balanced Analog Systems Based on Ordinary and/or Modified Single-Ended OPAMPS”, IEICE Trans. Fundamentals, vol. E82-A, No. 2 Feb. 1999, pp. 256-270.
Tetsuro Itakura, et al., “A 2-V pp Linear Input-Range Fully Balanced CMOS Transconductor and its Application to a 2.5 V 2.5 MHz, Gm-C LPF”, IEICE Trans. Fundamentals vol. E83-A, No. 11, Nov. 2000, pp. 2295-2302.
Czarnul, legal representative Krystyna
Itakura Tetsuro
Ueno Takeshi
Choe Henry
Kabushiki Kaisha Toshiba
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