Monolithically integrable transistor amplifier having gain contr

Details Monolithically integrable transistor amplifier having gain contr Monolithically integrable transistor amplifier having gain contr

1980-06-05

1983-01-18

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

H03G 330

Patent

active

043694101

ABSTRACT:
Monolithically integrable transistor amplifier including four transistors of the same type having respective emitters, collectors and bases, a signal input connected to the base of a first one of the transistors, the emitter of the first transistor being connected to the emitter of a second one of the transistors, means for providing a power source connected by a terminal thereof to the emitters of the first and second transistors and by another terminal thereof via a respective load resistance to the collectors of the first and second transistors, a third one and a fourth one of the transistors being connected by the respective emitters thereof to one another, the respective bases of the second and the third transistors being connected to one another, the third transistor being connected to the fourth transistor in the same manner, as the first transistor is connected to the second transistor, the respective collectors of the first and third collectors, on the one hand, and of the second and fourth collectors, on the other hand, being directly connected to one another and including a common connection between respective terminals of the bases and a common connection between respective terminals of the emitters of the four transistors, and a reference input connected to the respective terminals of the bases of the second and third transistors for applying a signal or potential thereto.

REFERENCES:
patent: 3210683 (1965-10-01), Pay
patent: 3452289 (1969-06-01), Ryan
patent: 4109214 (1978-08-01), Main
"A Wideband Multiplier for Systems Design", Electronic Engineering, Jun. 1972, pp. 18,19.
Tietze et al., Halbleiter-Schaltungstechnik, 1978, pp. 53-59.

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