BiCMOS output stage with improved output voltage signal
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United States of America Patent
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Sep 8, 1992
Grant Date -
N/A
app pub date -
Sep 24, 1991
filing date -
Sep 24, 1991
priority date (Note) -
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status (Latency Note)
Importance
Abstract
The output stage for a feedback amplifier has a diode circuit to provide quiescent current to the output transistors, and a diode turnoff circuit that renders the diodes non-conductive for an input signal that sends the stage output voltage low. A swing transistor between the stage's output terminal and a low voltage bus is actuated by the same input signal to drive the output voltage to the level of the low voltage bus. Both the diode turnoff circuit and the swing transistor are preferably MOSFETs.
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