Complementary transconductance amplifiers

Amplifiers – With semiconductor amplifying device – Including differential amplifier

Patent

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Details

330257, 330261, H03F 345

Patent

active

047572736

ABSTRACT:
A complementary differential amplifier comprising a first and a second pair of complementary bipolar transistors, each of said transistors having a base, emitter and a collector, a resistor network for coupling said emitters, a first and a second level shift bias network, a resistor network for coupling said first and said second level shift bias networks to the bases of said first and said second pair of complementary transistors, a constant current source coupled between the level shift bias networks and a source of a first reference potential and a reference current generator coupled to the current source for generating a reference bias current for said first and said second level shift bias networks which is proportional to absolute temperature.

REFERENCES:
patent: 4229705 (1980-10-01), Takahashi et al.

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