Low noise buffer circuit for increasing digital signal transitio

Details Low noise buffer circuit for increasing digital signal transitio Low noise buffer circuit for increasing digital signal transitio

1999-06-01

2000-11-07

Nuton, My-Trang

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Slope control of leading or trailing edge of rectangular or...

H03K 512

Patent

active

061442402

ABSTRACT:
A low noise buffer circuit for increasing the slew rates of transitions between signal states of a digital signal while drawing minimal transient power supply current during such signal state transitions. Successive alternating digital signal inversion circuits conduct respective power supply source and sink currents which: are unregulated source currents and regulated sink currents during respective low-to-high output signal transitions; transition from unregulated source currents and regulated sink currents to regulated source currents and unregulated sink currents, respectively, during respective high output signal states; are regulated source currents and unregulated sink currents during respective high-to-low output signal transitions; and transition from regulated source currents and unregulated sink currents to unregulated source currents and regulated sink currents, respectively, during respective low output signal states.

REFERENCES:
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patent: 4841166 (1989-06-01), Harnden
patent: 5453709 (1995-09-01), Tanimoto et al.
patent: 5541541 (1996-07-01), Salamina et al.
patent: 5731727 (1998-03-01), Iwamoto et al.
patent: 5859552 (1999-01-01), Do et al.
patent: 5973533 (1999-10-01), Nagaoka

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