Operational amplifier with precise bias current control

Details Operational amplifier with precise bias current control Operational amplifier with precise bias current control

1989-08-31

1990-09-25

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330259, 330311, H03F 345

Patent

active

049596225

ABSTRACT:
An operational amplifier of the folded cascode type is disclosed and includes a differential input stage, connected with a differential to single ended output stage, a current mirror is interconnected with both stages for maintaining a precise relationship between bias current in the two stages.

REFERENCES:
patent: 4525663 (1985-06-01), Henry
patent: 4857862 (1989-08-01), Brokaw

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