Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2006-08-09
2008-10-28
Pascal, Robert J. (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S257000
Reexamination Certificate
active
07443238
ABSTRACT:
An amplifier stage includes a first and a second signal path having a series connection of a first transistor of a first conduction type which forms a control input for receiving an input signal to the amplifier stage and a second transistor of a second conduction type. The amplifier stage further includes a first and second signal output which are formed by a respective connection node of the respective first and second transistors. For each of the first and the second signal path, the amplifier stage includes a third transistor of the second conduction type which is connected to the respective second transistor as current mirror, and a fourth transistor of the first conduction type which is connected to the respective first transistor as a current mirror and which is for controlling the third transistor of the other signal path, respectively. Furthermore, for each of the first and the second signal path, a current source is provided with is connected in parallel to one of the respective first, second, third, and fourth transistors.
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“Low Voltage Analog Circuit Design Techniques: A Tutorial”, S. Yan and Sanchez-Sinencio, IEICE Trans. Analog Integrated Circuits and Systems, vol. E00-A, No. 2, Feb. 2000, Invited Paper, pp. 11-12.
Eschweiler & Associates LLC
Infineon - Technologies AG
Pascal Robert J.
Wong Alan
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