Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Particular stable state circuit
Patent
1994-03-03
1995-02-14
Wambach, Margaret R.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Particular stable state circuit
327199, 327586, 326126, H03K 329
Patent
active
053898320
ABSTRACT:
An output stage device for an enhanced differential current switch. The output stage receives a differential signal pair from a prior logic stage and must shift the output signals to the levels necessary for the next stage. The output stage has a differential pair of emitter followers that are capacitively cross coupled. Capacitors couple the collector of a first transistor to the emitter of the second. The capacitors can be formed from forward biased diodes or transistors. The result is a more rapid falling output transition while reducing power requirements.
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E. B. Eichelberger et al., "Differential Current Switch-High Performance at Low Power", IBM Journal of Research and Development, vol. 35, No. 3, pp. 313-320, May 1991.
H. J. Greub et al., "High-Performance Standard Cell Library and Modeling Technique for Differential Advanced Bipolar Current Tree Logic", IEEE Journal of Solid-State Circuits, vol. 26, No. 5, pp. 749-762, May 1991.
Boerstler David W.
Eichelberger Edward B.
Hendrickson Gary T.
Winn Charles B.
Cutter Lawrence D.
International Business Machines - Corporation
Wambach Margaret R.
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