Integrated monolithic operational amplifier with electrically ad

Details Integrated monolithic operational amplifier with electrically ad Integrated monolithic operational amplifier with electrically ad

1998-04-29

2000-05-23

Pascal, Robert

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330 9, H03F 345

Patent

active

060669861

ABSTRACT:
An integrated operational amplifier device has an operational amplifier device, and means connected to the operational amplifier device for providing at least one of a positive and a negative electrically adjustable input offset voltages. The system further comprises semiconductor device means for affecting the amount of input offset voltage supplied to the operational amplifier device. The system further comprises charge storage device means for storing a charge for maintaining a constant input offset voltage for controlling the operation of the semiconductor device means. The charge storage device means, the semiconductor device means, and the operational amplifier device are a monolithic integrated circuit.

REFERENCES:
patent: 4393351 (1983-07-01), Gregorian et al.
patent: 4580103 (1986-04-01), Tompsett
patent: 4841252 (1989-06-01), Lou
patent: 4987327 (1991-01-01), Fernandez et al.

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