Integrated circuit amplifier arrangements
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United States of America Patent
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Aug 8, 1995
Grant Date -
N/A
app pub date -
Feb 2, 1994
filing date -
Feb 17, 1993
priority date (Note) -
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Importance
Abstract
In a differential amplifier having a pair of emitter follower outputs, power saving is obtained by switching the pull-down currents so that the emitter followers have to provide current to drive the load only in the on direction. The preceding stage is a cascode stage, so that the switching signals for switching the pull-down currents may be derived from the emitter circuits of the cascode stage output transistors.
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