Current source logic gate
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United States of America Patent
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Sep 5, 2017
Grant Date -
N/A
app pub date -
Dec 9, 2016
filing date -
Dec 11, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A current source logic gate with depletion mode field effect transistor (“FET”) transistors and resistors may include a current source, a current steering switch input stage, and a resistor divider level shifting output stage. The current source may include a transistor and a current source resistor. The current steering switch input stage may include a transistor to steer current to set an output stage bias point depending on an input logic signal state. The resistor divider level shifting output stage may include a first resistor and a second resistor to set the output stage point and produce valid output logic signal states. The transistor of the current steering switch input stage may function as a switch to provide at least two operating points.
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