Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2008-03-26
2009-10-13
Choe, Henry K (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S261000
Reexamination Certificate
active
07602249
ABSTRACT:
An amplifier electronic circuit with at least one amplifier stage, including a differential pair that includes two input transistors controlled by respective input signals and means for measuring the common mode output voltage of the amplifier, includes at least one first electronic component and one second electronic component, each electronic component comprising a first gate and a second gate, a source and a drain, the first gates of the first and second electronic components being interconnected and connected to the drain of the first electronic component, one of the second gates of the electronic components receiving the measured common mode output voltage, the other of the second gates receiving a reference voltage. The amplifier electronic circuit may be used in applications using differential pairs, for example, an amplifier, an oscillator, or active filters.
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Chatterjee et al., “A 0.5-V Bulk-Input Fully Differential Operational Transconductance Amplifier”, IEEE, 2004.
Brinks Hofer Gilson & Lione
Choe Henry K
Commissariat a l''Energie Atomique
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