High-speed low-drift operational amplifier

Details High-speed low-drift operational amplifier High-speed low-drift operational amplifier

1979-09-17

1981-10-06

Dixon, Harold A.

Amplifiers

With periodic switching input-output

H03F 102

Patent

active

042938198

ABSTRACT:
A high-speed low-drift operational amplifier is disclosed in which a coefficient circuit having a voltage gain of more than 1 is formed employing a low frequency operational amplifier with a low-drift characteristic to multiply an input voltage by the voltage gain, the coefficient circuit and a low pass filter are connected in cascade to form a drift compensating circuit, and the inverting and non-inverting input terminals of a wide-band operational amplifier are connected to the input and output terminals of the drift compensating circuit, respectively.

REFERENCES:
patent: 2801296 (1957-07-01), Blecher
patent: 3573644 (1971-04-01), Evel
patent: 3737798 (1973-06-01), Faraguet

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