Translinear f.sub.T multiplier

Details Translinear f.sub.T multiplier Translinear f.sub.T multiplier

1993-02-08

1994-07-19

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Including differential amplifier

307494, H03F 345

Patent

active

053312899

ABSTRACT:
A translinear f.sub.T multiplier has a pair of differential transistor amplifiers, each pair having commonly coupled emitters, with the base of one transistor of one pair being coupled to the base of one transistor of the other pair and the collectors of the pair being cross-coupled. A diode network provides three parallel diode paths from a reference voltage, two paths being coupled to receive an input signal and to the bases of the other transistors of each pair and the third path being coupled to a constant current source and to the bases of the first transistors of each pair. The resulting circuit configuration accommodates varying transition times.

REFERENCES:
patent: 3633120 (1972-01-01), Battjes
patent: 3931583 (1975-01-01), Gilbert
patent: 4065725 (1977-12-01), Lillis et al.
patent: 4267516 (1981-05-01), Traa
patent: 4890067 (1989-12-01), Lamb
patent: 5039952 (1991-08-01), Dreps et al.
patent: 5065053 (1991-11-01), Chan et al.

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