Buffer amplifier circuit suitable for manufacture in monolithic

Details Buffer amplifier circuit suitable for manufacture in monolithic Buffer amplifier circuit suitable for manufacture in monolithic

1977-07-05

1978-10-24

Dahl, Lawrence J.

Amplifiers

With semiconductor amplifying device

Including current mirror amplifier

307299B, 330257, 330296, H03F 304

Patent

active

041224027

ABSTRACT:
A buffer amplifier suitable for being driven by a differential amplifier having a differential-to-single ended converter is disclosed. The buffer amplifier includes a multi-collector input transistor of a first conductivity type and an emitter-follower output transistor of a second conductivity type. The base of the output transistor is connected to a first collector of the input transistor. A bias circuit for the output transistor is connected to the first collector of the input transistor and to the base of the output transistor. A negative feedback network is connected between the emitter of the output transistor and the base and second collector of the input transistor to stabilize the quiescent output voltage. Current sources are utilized for maximizing the amplitude of the dynamic output voltage and for facilitating temperature independence.

REFERENCES:
patent: 3783400 (1974-01-01), Gay
patent: 3914622 (1975-10-01), Fezzolo

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