Integrated current-mirror arrangement comprising vertical transi

Details Integrated current-mirror arrangement comprising vertical transi Integrated current-mirror arrangement comprising vertical transi

1988-12-08

1990-01-16

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including current mirror amplifier

330307, 357 46, H03F 324

Patent

active

048946222

ABSTRACT:
An integrated current-mirror arrangement comprises a first and a second transistor whose bases are interconnected and connected to the collector of the first transistor. The transistors are constructed as vertical transistors each having a collector region (23a, 23b) of the first conductivity type, isolated from the substrate (21) of the first conductivity type by an intermediate layer (22) of the second conductivity type. A connection is provided between said intermediate layer (22) and the interconnected bases (29, 30) of the two transistors which improves the high-frequency transfer function between input and output and effectively eliminates the capacitive path for interference signals from the voltage supply line (+V) to the output.

REFERENCES:
patent: 4371792 (1983-02-01), Dobkin

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