Operational amplifier with all NPN transistor output stage

Details Operational amplifier with all NPN transistor output stage Operational amplifier with all NPN transistor output stage

1992-11-30

1994-02-08

Pascal, Robert J.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330275, 330273, 330263, H03F 345

Patent

active

052851702

ABSTRACT:
An operational amplifier achieves higher operating speed by using an all NPN transistor output drive stage. A control circuit in output drive stage receives an input signal and providing first and second control signals. The first and second control signals in turn drive first and second NPN output drive transistors arranged in a totem pole configuration between first and second power supply conductors.

REFERENCES:
patent: 4871977 (1989-10-01), Schilling et al.
patent: 5166636 (1992-11-01), Bien

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