Current mirror circuit and receiver using the same
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United States of America Patent
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Nov 28, 2017
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N/A
app pub date -
Mar 26, 2015
filing date -
Mar 26, 2014
priority date (Note) -
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Abstract
A current mirror circuit that amplifies a reference current generated by a current source at a first magnification to supply a mirror current to a load circuit. The current mirror circuit includes a first transistor and a second transistor that share a power supply, and a drain potential mirror unit that amplifies the reference current at a second magnification to generate a first current, that amplifies a generated first current at a third magnification to generate a second current, and that supplies a predetermined potential determined based on the second current to a drain of the second transistor. The mirror current is supplied from the second transistor to the load circuit based on a potential of a gate of the first transistor determined based on the reference current.
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