Coupling isolation method and operational amplifier using...

Details Coupling isolation method and operational amplifier using... Coupling isolation method and operational amplifier using...

2010-04-14

2011-11-08

Nguyen, Patricia (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including signal feedback means

C330S302000, C330S255000

Reexamination Certificate

active

08054134

ABSTRACT:
A coupling isolation method for preventing a load signal from coupling into an operational amplifier is disclosed. The coupling isolation method includes generating a system signal before the operational amplifier outputs a computation result, switching off a Miller compensation signal path of the operational amplifier at a first time point according to the system signal, and electrically connecting an output end of the operational amplifier and a load at a second time point according to the system signal to output the computation result.

REFERENCES:
patent: 6522199 (2003-02-01), Sidiropoulos et al.
patent: 6621334 (2003-09-01), Ausserlechner et al.
patent: 7408390 (2008-08-01), Yamada
patent: 7652538 (2010-01-01), Choi
patent: 7786801 (2010-08-01), Kim
patent: 7907011 (2011-03-01), Chung

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