Bipolar transistor circuit with FET constant current source

Details Bipolar transistor circuit with FET constant current source Bipolar transistor circuit with FET constant current source

1983-05-31

1986-05-20

LaRoche, Eugene R.

Amplifiers

With semiconductor amplifying device

Including combined diverse-type semiconductor device

330253, H03F 316

Patent

active

045904383

ABSTRACT:
A transistor circuit is used as a signal amplifier which has little possibility of oscillation in an IC. The transistor circuit includes a cascade connection of differential amplifiers. Each of the amplifiers comprises a differential pair of bipolar transistors and an enhancement-type MOSFET as a constant current source. The MOSFET of each amplifier is connected in the common source mode, and the drain is connected to the emitters of the differential pair of bipolar transistors. The sources of all the MOSFETs are connected to a common ground-line.

REFERENCES:
patent: 4460874 (1984-07-01), Haque
Union Carbide Electronics ad from Electronics, Mar. 22, 1965, p. 62.

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