Operational amplifier

Details Operational amplifier Operational amplifier

1985-12-11

1987-04-28

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330257, 330260, 330311, H03F 345

Patent

active

046617795

ABSTRACT:
An operational amplifier comprises an initial amplifier stage having a pair of inputs, and a second amplifier stage connected to an output of the initial stage. A phase compensating capacitive element is connected between an output terminal of the second stage and a virtual ground point, and a constant current source is connected to the virtual ground point and the output of the initial stage. A resistive element and a capacitive element are series-connected between the output of the initial stage and the output of the second stage.

REFERENCES:
patent: 4484148 (1984-11-01), Wieser

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