Amplifiers – With semiconductor amplifying device – Including differential amplifier
Patent
1994-10-25
1995-11-21
Mottola, Steven
Amplifiers
With semiconductor amplifying device
Including differential amplifier
330257, H03F 345
Patent
active
054691060
ABSTRACT:
A voltage controlled amplifier which includes a gain core and a transconductive amplifier. The gain core includes two complimentary differential transistor pairs. The emitters of the four transistors of the two differential pairs are connected to complimentary diode connected transistors. The diode connected transistors balance the parasitic resistances of the dissimilar transistors, thereby, reducing differential gain and distortion.
REFERENCES:
patent: 3838210 (1974-09-01), Peil
patent: 4422051 (1983-12-01), Katakura et al.
Elantec, Inc.
Mottola Steven
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