Differential amplifier circuit

Details Differential amplifier circuit Differential amplifier circuit

1981-09-14

1984-09-11

Mullins, James B.

Amplifiers

Modulator-demodulator-type amplifier

330252, H03F 345

Patent

active

044713150

ABSTRACT:
In a differential amplifier circuit, there are provided a chopper circuit for converting an input signal into an AC signal intermittently, an amplifier circuit for amplifying the output of the chopper circuit, a sample hold circuit for taking out a signal corresponding to the input signal out of the output of the amplifier circuit and an oscillator circuit for generating a pulse signal for controlling the chopper circuit and the sample hold circuit. The amplifier circuit includes an operational amplifier having an input terminal connected with a grounding resistor to which selected one of the potentials of said two input terminals is applied.

REFERENCES:
patent: 3206691 (1965-09-01), Martin

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