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Performance estimate for high-speed CMOS-current-mode-logic circuits based on output voltage swing considerations

: Christoffers, N.; Lerch, R.G.; Hosticka, B.J.; Kolnsberg, S.; Kokozinski, R.

Menzel, W.:
German Microwave Conference, GeMiC 2005. CD-ROM : University of Ulm, April 5 - 7, 2005
Ulm: Univ. Ulm, 2005
ISBN: 3-00-015423-X
German Microwave Conference (GeMiC) <1, 2005, Ulm>
Conference Paper
Fraunhofer IMS ()
current-mode-logic; technology impact; voltage swing; high frequency; Spannungsschwankung; Hochfrequenz; emittergekoppelte Logik

Current-mode-logic circuits play an important role in the design of CMOS frequency synthesizers for modern wireless digital communication systems. They provide the building blocks for frequency dividers with input frequencies in the range of the desired carrier frequencies. In this communication we estimate the upper limit frequency as a function of the gate length using voltage swing considerations.