Low noise op amp

Details Low noise op amp Low noise op amp

2007-11-27

2007-11-27

Choe, Henry (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including field effect transistor

C330S253000

Reexamination Certificate

active

11267330

ABSTRACT:
An analog circuit for processing analog signals in an integrated circuit comprising a number of metal oxide semiconductor transistor devices. The circuit includes a first transistor device having a thin oxide thickness, and a second transistor device having a thicker oxide thickness. A voltage pulse protection is arranged to maintain the operating voltage of the thin oxide transistor in the presence of a rapidly rising voltage waveform (e.g. ESD), or at least to mitigate its effect on the thin oxide transistor device. Preferably a cascode based op amp structure is implemented.

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