Noninverting amplifier circuit with low input impedance

Details Noninverting amplifier circuit with low input impedance Noninverting amplifier circuit with low input impedance

1979-12-21

1982-05-25

Mullins, James B.

Amplifiers

Combined with automatic amplifier disabling switch means

330 85, 330100, 330306, 333 14, H03F 134, H03G 700

Patent

active

043319270

ABSTRACT:
A non-inverting amplifier circuit having input and output terminals wherein the input impedance between the input terminal and a reference point is relatively low. The circuit comprises a first amplifier having a non-inverting input coupled to the input terminal, an inverting input, and an output coupled to the output terminal. A second amplifier is also provided, the second amplifier having a non-inverting input, an inverting input coupled to the output of the first amplifier and an output coupled to the non-inverting input of the first amplifier.

REFERENCES:
patent: 4190806 (1980-02-01), Wermuth
patent: 4222012 (1980-09-01), Yokoyama

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