Patent ID: 6400215
Filing Date: 2002-06-04
Classification: G05F

Abstract:
A mirror circuit comprising:a plurality of constant-current transistors for generating constant currents, wherein said constant-current transistors include a transistor located at a first position and a transistor located at a second position which is separated from the first position by a predetermined distance; a plurality of constant-voltage transistors, each provided at an associated constant-current transistor, for generating a constant voltage to be applied to a gate of the associated constant-current transistor to make a source-drain current flow in the associated constant-current transistor, said source-drain current being proportional to a gate width of the associated constant-current transistor; and a current-supplying circuit provided between the constant-current transistors and a constant-current circuit, wherein the current supplying circuit supplies a constant-current from the constant-current circuit to the constant-voltage transistors, wherein said plurality of constant-voltage transistors are located close to the constant-current transistors and laid out in an identical direction to that of the constant-current transistors.