Differential amplifier

Details Differential amplifier Differential amplifier

1988-03-25

1989-06-13

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330257, 330300, 330311, H03F 345

Patent

active

048396095

ABSTRACT:
To provide a high-speed wide-dynamic range differential amplifier, the amplifier comprises first and second FETs having source terminals connected to each other and a constant current source connected between the sources and ground; third and fourth bipolar transistors complementary to the first and second FETs, having base terminals connected to a first bias voltage in common and emitter terminals connected to the drains of the first and second FETs and a supply voltage via resistors, respectively; and a current mirror circuit composed of fifth and sixth FETs of the same conductive type as the first and second FETs.

REFERENCES:
patent: 4387309 (1983-06-01), Shacter
patent: 4390850 (1983-06-01), Davis et al.
patent: 4406990 (1983-09-01), Noro
patent: 4538114 (1985-08-01), Kunimi et al.
patent: 4600893 (1986-07-01), Sugimoto

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