Fixed gain operational amplifiers

Details Fixed gain operational amplifiers Fixed gain operational amplifiers

1999-02-18

2000-02-01

Pascal, Robert

Amplifiers

With amplifier condition indicating or testing means

330129, G01R 1900, H03G 320

Patent

active

06020785&

ABSTRACT:
A method and apparatus for customizing the gain of a closed loop operational amplifier during fabrication to a fixed value. The fabricated circuit includes a feedback resistance and a gain resistance coupled to an operational amplifier core. The feedback resistance is set to a preset value by setting links coupled to resistors which make up the feedback resistance.

REFERENCES:
patent: 4292596 (1981-09-01), Ishizuka et al.
patent: 4441082 (1984-04-01), Haque
patent: 4691172 (1987-09-01), Fukahori et al.
patent: 5563549 (1996-10-01), Shieh
patent: 5642075 (1997-06-01), Bell
patent: 5877612 (1999-03-01), Straw
National Semiconductor Corporation, "LH0084/LH0084C Digitally-Programmable-Gain Instrumentation Amplifier," Linear Databook (1982), pp. 4-37-4-48.

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