Input circuit and semiconductor integrated circuit including...

Details Input circuit and semiconductor integrated circuit including... Input circuit and semiconductor integrated circuit including...

2009-03-18

2010-11-16

Lam, Tuan (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C326S026000, C326S082000

Reexamination Certificate

active

07834670

ABSTRACT:
An input circuit, includes a first buffer circuit having an output signal terminal connected to an output; a capacitor having one end connected to an input signal terminal, and the other end connected to an input of the first buffer circuit; a first differential amplification circuit receiving a voltage of a first external power source terminal and an output of a second buffer circuit; a second differential amplification circuit receiving a voltage of a second external power source terminal and an output of a third buffer circuit; a first resistance having one end connected to an output of the first differential amplification circuit, and the other end connected between the capacitor and the first buffer circuit; and a second resistance having one end connected to an output of the second differential amplification circuit, and the other end connected between the capacitor and the first buffer circuit.

REFERENCES:
patent: 6469543 (2002-10-01), Fulkerson
patent: 6515512 (2003-02-01), Chen
patent: 7126377 (2006-10-01), Brooks et al.
patent: 7482837 (2009-01-01), Fagan
patent: 7598780 (2009-10-01), Kibune

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