Amplifier circuit having a high degree of common mode rejection

Details Amplifier circuit having a high degree of common mode rejection Amplifier circuit having a high degree of common mode rejection

1977-12-27

1979-04-03

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including current mirror amplifier

330290, 330293, 330311, H03F 134

Patent

active

041479920

ABSTRACT:
The disclosed unity gain amplifier circuit includes current supplies, current sinks, input, output and feedback transistors and an inverting gain stage. The negative feedback transistor stabilizes the quiescent signals and enables the magnitude of the amplifier output signal to follow the magnitude of the amplifier input signal. The gain stage, which is connected between the current supplies, the current sinks, and the input and feedback transistors, utilizes undesired signals occurring therein to cancel each other so that the undesired signals do not adversely effect the magnitude of the amplifier output signal.

REFERENCES:
patent: 3366889 (1968-01-01), Avins
patent: 3452287 (1969-06-01), Busch et al.

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