Frequency compensated differential amplifier

Details Frequency compensated differential amplifier Frequency compensated differential amplifier

1976-02-11

1977-09-06

Rolinec, Rudolph V.

Amplifiers

Signal feedback

Plural amplifier channels

330 30D, 330 30R, 330 69, 330124R, H03F 136

Patent

active

040471225

ABSTRACT:
In differential input DC gain amplifiers with high input impedance, a capacitive attenuator is built-in in order to reduce the amplifying effect on the AC component due to interference by the industrial power lines. Such attenuation is obtained by feeding back through cross capacitors the AC signal at one output to the input on the opposite side so that the ratio of the differential outputs to the differential inputs for the AC component is substantially unity.

REFERENCES:
patent: 3103601 (1963-09-01), Gordon et al.
patent: 3358241 (1967-12-01), Hull

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