Differential amplifier with a current mirror circuit

Details Differential amplifier with a current mirror circuit Differential amplifier with a current mirror circuit

1978-02-01

1980-03-18

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330288, H03F 345

Patent

active

041941667

ABSTRACT:
In a differential amplifier having a current mirror circuit, the improvement where the collectors of a pair of transistors comprising the current mirror circuit are respectively connected to the bases of a pair of transistors of polarity reverse that of the current mirror transistors, the collectors of the reversed polarity transistors are connected to a power supply, the emitters of the reversed polarity transistors are connected to corresponding active elements of the differential amplifier, and resistors are respectively connected between the bases and emitters of the reversed polarity transistors.

REFERENCES:
patent: 4007427 (1977-02-01), Leidich

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