Integrated-circuit (IC) amplifier with plural complementary stag

Details Integrated-circuit (IC) amplifier with plural complementary stag Integrated-circuit (IC) amplifier with plural complementary stag

1994-12-05

1996-07-16

Mottola, Steven J.

Amplifiers

With semiconductor amplifying device

Including push-pull amplifier

330267, H03F 326

Patent

active

055370799

ABSTRACT:
An IC amplifier having first and second cascaded stages formed by respective pairs of symmetrical complementary bipolar transistors followed by a unity gain buffer amplifier and provided with overall current feedback. The quiescent collector currents of the second amplifier stage are controlled by respective transconductance generators with respective complementary bipolar transistors connected in parallel relationship to the transistors of the second stage. The collector currents of the transconductance generators are fixed at the levels of respective reference current generators.

REFERENCES:
patent: 4502020 (1985-02-01), Nelson et al.
patent: 4879522 (1989-11-01), Mattfeld

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