VOLTAGE LEVEL SHIFTER CIRCUIT, SYSTEM, AND METHOD FOR HIGH SPEED APPLICATIONS
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United States of America Patent
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Issued Date -
Oct 9, 2014
app pub date -
Mar 31, 2014
filing date -
Mar 29, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A level shifting circuit includes a first inverter including a pair of transistors of opposite conductivity type, the first inverter adapted to receive an input signal in a first voltage domain and further including at least one additional transistor driven by a voltage in a second voltage domain. A second inverter is coupled in series with the first inverter and operable to generate an output signal in the second voltage domain. The second inverter includes a pair of transistors of opposite conductivity type, and further includes at least one additional transistor driven by a voltage in the first voltage domain. The additional transistors are operable to approximately equalize the fall times of output signals generated by the first and second inverters.
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