Voltage follower circuit

Details Voltage follower circuit Voltage follower circuit

1979-02-22

1980-09-16

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330259, 330260, H03F 345, H03F 304

Patent

active

042232767

ABSTRACT:
A voltage follower circuit which has first and second transistors each having two collectors. The second collector of each transistor has a smaller area than the first collector thereof. Third and fourth transistors connected as a current source have their collectors connected to the first collectors of the first and second transistors, respectively, and connected also to the second collectors of the second and first transistors, respectively. A fifth transistor has its base and emitter respectively connected to the first collector and base of the second transistor. An input signal is supplied to the base of the first transistor and an output signal is taken from the emitter of the fifth transistor.

REFERENCES:
patent: 4147944 (1979-04-01), Monticelli
R. W. Russell et al., "Automotive and Industrial Electronic Building Blocks", IEEE Journal of Solid-State Circuits, vol. SC-7, No. 6, Dec. 1972, pp. 446-454.
Solomon, "The Monolithic Op Amp: A Tutorial Study", _IEEE Journal of Solid-State Circuits, vol. SC-9, No. 6, Dec. 1974, pp. 314-332.

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