Amplifier circuit with bipolar and field-effect transistors

Details Amplifier circuit with bipolar and field-effect transistors Amplifier circuit with bipolar and field-effect transistors

1992-09-18

1993-12-07

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including combined diverse-type semiconductor device

330151, 330311, H03F 304

Patent

active

052686507

ABSTRACT:
An amplifier circuit (1) has an input stage (2), at least one intermediate stage (3) and an output stage (4). MOSFET transistors are used in the at least one intermediate stage (3), and bipolar transistors are used in the input and output stage (2, 4). A very high amplification with small offset voltage and little noise can be attained.

REFERENCES:
patent: 4728903 (1988-03-01), Reiffin
patent: 5012134 (1991-04-01), Kimura
U. Tietze and Ch. Schenk, "Halbleiter-Schaltungstechnik" [Semiconductor Circuit Technology] Eighth Ed., 1986, Springer Verlag [Publishers], pp. 142 and 143, Germany.
Wirsum, "FETS und VMOs" published by Franzis', ISBN 3-7723-6741-0, pp. 90 and 91, 1980 in Germany.

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