Patent ID: 7932712

Claim:
A current-mirror circuit which reproduces a reference current generated by a current source and outputs the reproduced reference current, comprising: a first transistor having a first control electrode; a second transistor having a second control electrode connected to said first control electrode; a third transistor having a third control electrode and current electrodes, and being cascode-connected to said first transistor through one of the current electrodes; a fourth transistor having a fourth control electrode connected to said third control electrode, and being cascode-connected to said second transistor; a fifth transistor being arranged parallel to said third transistor, and having a fifth control electrode which is connected to said first control electrode and another of said current electrodes of the third transistor, and is to be connected to said current source; and a bias-voltage generation circuit generating bias voltages for said third transistor and said fourth transistor on the basis of voltages of said first control electrode and said fifth control electrode.