Integrated circuit and optical pickup device

Details Integrated circuit and optical pickup device Integrated circuit and optical pickup device

2007-04-03

2007-04-03

Pascal, Robert (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including plural stages cascaded

C330S308000

Reexamination Certificate

active

10944240

ABSTRACT:
An integrated circuit includes a first-stage amplifier circuit and a following-stage amplifier circuit connected in series, a common power source pad for supplying power to the amplifier circuits, and metal wires respectively connecting the common power source pad to the amplifier circuits. On the metal wire which connects the first-stage amplifier and the power source pad, an integrator is electrically connected. This arrangement decreases a coupling noise generated in the first-stage amplifier circuit, thereby stabilizing circuit operation of the following-stage amplifier circuit.

REFERENCES:
patent: 3972002 (1976-07-01), Aprille, Jr.
patent: 6838323 (2005-01-01), Gauthier et al.
patent: 6861910 (2005-03-01), Karasudani
patent: 6952136 (2005-10-01), Gupta
patent: 2003-37446 (2003-02-01), None

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