CURRENT MIRROR CIRCUIT AND RECEIVER USING THE SAME

摘要

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

主权项

1. 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 comprising:
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, amplifies a generated first current at a third magnification to generate a second current, and supplies a predetermined potential determined based on the second current to a drain of the second transistor, wherein 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.