Patent ID: 7375504

Claim:
A reference current generator comprising: a first current generator receiving a predetermined current and generating a first current that increases as temperature increases; a second current generator receiving a predetermined current and generating a second current that decreases as temperature increases; and a reference current generator summing up the first current and the second current to generate a third current, wherein the first current generator comprises: a first transistor and a second transistor connected so as to mirror each other and generating currents according to a predetermined voltage; a third transistor and a fourth transistor connected so as to mirror each other and allowing the currents generated by the first transistor and the second transistor according to the predetermined voltage to flow; a fifth transistor connected to the first transistor and the second transistor in the mirror configuration and allowing the first current corresponding to the currents generated by the first transistor and the second transistor to flow; a sixth transistor connected to the third transistor and the fourth transistor in the mirror configuration and turned on together with the third transistor and the fourth transistor; a first diode connected to the third transistor and generating a predetermined voltage by the predetermined current generated by the first transistor; a first resistor connected to the fourth transistor and allowing the current flowing through the fourth transistor to flow; and a first amplifier adjusting a first voltage and a voltage across the first resistor by the first current, and adjusting voltages supplied to gates of the first transistor and the second transistor.