Input stage for flash A/D converter
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United States of America Patent
Stats
-
Jul 10, 1990
Grant Date -
N/A
app pub date -
May 5, 1989
filing date -
May 5, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flash converter in which an input circuit is provided for maintaining a substantially constant collector-base voltage on the input emitter-followers, so as to obviate the distortion caused by variation of the input capacitance with input voltage. The driving source directly drives the base of the emitter-followers and, through a level-shift circuit, also drives the collectors of the emitter-follower transistors.
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