Voltage follower circuit

Details Voltage follower circuit Voltage follower circuit

1982-06-02

1984-10-02

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including current mirror amplifier

330257, 330311, H03F 304, H03F 345

Patent

active

044750870

ABSTRACT:
A voltage follower circuit comprises first and second emitter-coupled transistors. The first transistor has its base connected to receive an input voltage, and the second transistor has its base shunted to its collector. A voltage transfer circuit is provided which includes a plurality of transistors each connected in the emitter follower configuration. The input of the voltage transfer circuit is connected to the collector of the second transistor to transfer the input voltage to the output thereof. The open-loop gain of the circuit is substantially unity, and an offset error voltage is extremely small.

REFERENCES:
patent: 4223276 (1980-09-01), Nagano
Ahmed, "Zero-Offset Potential Follower Circuits", RCA Technical Notes, TN No. 938, Sep. 17, 1973, Sheets 1-7.

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