Differential amplifier circuit

Details Differential amplifier circuit Differential amplifier circuit

2007-05-22

2007-05-22

Mottola, Steven J. (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S257000

Reexamination Certificate

active

11087709

ABSTRACT:
In a comparator, diodes are disposed between differential pair transistors and current mirror pair transistors forming active loads. The diodes may be disposed between the differential pair transistors and the current mirror pair transistors or between the current mirror pair transistors and a ground line. In addition, diodes are disposed between signal input transistors and the ground line and between the differential pair transistors and the signal input transistors, respectively.

REFERENCES:
patent: 5289136 (1994-02-01), DeVeirman et al.
patent: 5878082 (1999-03-01), Kishigami
patent: 6433636 (2002-08-01), Kasuya et al.
patent: 6483683 (2002-11-01), Stenström
patent: A-05-304447 (1993-11-01), None
patent: A-09-083267 (1997-03-01), None
Notice of Rejection from Japanese Patent Office issued on Aug. 29, 2006 for the corresponding Japanese patent application No. 2004-113860 (a copy and English translation thereof).

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