Translinear f.sub.T multiplier
AssigneeTektronix, Inc.
InventorBurt L. Price
Life of this patent
Estimating the term…
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.
Claims3
A bipolar translinear f.sub.T multiplier of the type having a pair of differential transistor amplifiers with the emitters of each pair coupled together to a constant current source, with the base of one transistor of the first pair being coupled to the base of one transistor of the second pair, and with the collectors cross-coupled to provide a differential output current comprising:
- a diode network having three parallel paths coupled between a reference potential and for two of the paths a differential input signal and for the third path a constant current source, the constant current source being coupled to the one base of each transistor pair and the differential input signal being coupled across the other bases of the first and second pairs.
Dependencies are inferred from the claim text.