Integrated circuit amplifier for low input voltages

Details Integrated circuit amplifier for low input voltages Integrated circuit amplifier for low input voltages

1982-07-15

1984-10-23

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330252, H03F 345

Patent

active

044790953

ABSTRACT:
An amplifier of integrated circuit construction for operating on input voltages less than 10 mV has a signal amplifier which is associated with a regulation loop for regulating out static offset voltages and slow offset voltage drifts. The output of the signal amplifier (1) is connected to the input of a switching amplifier (2) and to the output of a third amplifier (4). At the output of the switching amplifier, which is connected to the input of the third amplifier (4), a capacitor (3) is connected which has its other terminal connected to ground. An output coupling amplifier (5) can aid the switching amplifier (2) in its switching function.

REFERENCES:
patent: 3908173 (1975-09-01), Murdock

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