Input circuit for receiving an input signal, and a method...

Details Input circuit for receiving an input signal, and a method... Input circuit for receiving an input signal, and a method...

2008-01-29

2008-01-29

Pascal, Robert (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C327S563000

Reexamination Certificate

active

07323936

ABSTRACT:
The present invention relates to an input circuit for receiving an input signal in an integrated circuit, having a differential amplifier whose first input can have a predetermined reference voltage applied to it and whose second input can have the input signal applied to it, and having a current source for operating the differential amplifier at its operating point, wherein a setting circuit is connected to the current source in order to set the operating point of the differential amplifier in an optimum manner on the basis of the predetermined reference voltage.

REFERENCES:
patent: 3440554 (1969-04-01), Graeme et al.
patent: 3444476 (1969-05-01), Liedich
patent: 4442408 (1984-04-01), Le
patent: 4460873 (1984-07-01), Hester
patent: 5999050 (1999-12-01), Baltus
patent: 7009420 (2006-03-01), Schaefer
German Patent Office Examination Report dated Jan. 24, 2005.
Ulrich Tietze and Christoph Schenk, Semiconductor Circuit Technology, 11th edition, Berlin [et al.]: Springer, pp. 399-401, ISBN 3-540-64192-0, 1999.

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