Temperature compensated high gain FET amplifier

Details Temperature compensated high gain FET amplifier Temperature compensated high gain FET amplifier

1988-04-27

1989-07-18

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including field effect transistor

330286, 330289, 330293, H03F 3193

Patent

active

048497100

ABSTRACT:
An amplifier includes a single-gate FET and a dual gate FET in parallel interconnection. A temperature sensing circuit supplies a temperature-dependent bias voltage to the G.sub.2 gain control gate of the dual gate FET to counteract the temperature-dependence of the amplifier FETs thereby providing gain stability in the presence of temperature variations.

REFERENCES:
patent: 3517325 (1970-06-01), Blackmer
patent: 4207538 (1980-06-01), Goel
patent: 4223274 (1980-09-01), Paulke et al.
patent: 4525680 (1985-06-01), Pan et al.
patent: 4555675 (1985-11-01), Blanchandin et al.
patent: 4578603 (1986-03-01), McPherson
patent: 4734751 (1988-03-01), Hwang et al.
Amrine et al., "Amplifier", IBM Technical Disclosure Bulletin, vol. 11, No. 10, Mar. 1969, p. 1280.

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