Low noise op amp

Details Low noise op amp Low noise op amp

2006-09-26

2006-09-26

Mottola, Steven J. (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including field effect transistor

C330S253000, C330S298000

Reexamination Certificate

active

07113042

ABSTRACT:
The present invention relates amplifiers using metal oxide semiconductor based integrated circuits. The present invention is particularly but not exclusively related to audio application mixed signal chips. The present invention provides an analog circuit for processing analog signals in an integrated circuit comprising a number of metal oxide semiconductor transistor devices, the circuit stage comprising a first said transistor device having a first oxide thickness, and a second said transistor device having a second and different oxide thickness. Preferably a cascode based op amp structure is implemented.

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patent: 2 396 983 (2004-07-01), None
patent: 2000-236226 (2000-08-01), None

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