Current generation circuit, and bandgap reference circuit and semiconductor device including the same

A current generation circuit, comprising:

• a first bipolar transistor having a base and a collector connected to each other;
• a second bipolar transistor having a base and a collector connected to each other;
• a first resistive element connected to the second bipolar transistor;
• a first MOS transistor coupled between the first bipolar transistor and a first node;
• a second MOS transistor coupled between the first resistive element and a second node;
• a current distribution circuit having a third MOS transistor coupled between a power supply voltage terminal and the first node and a fourth MOS transistor coupled between the power supply voltage terminal and the second node, and supplying a first current and a second current for the first and the second node, respectively;
• a reference bias source;
• a first operational amplifier having a first input terminal that receives a voltage of the first node, a second input terminal that receives a reference bias voltage from the reference bias source, and a first output terminal connected to gate electrodes of the first and second MOS transistors;
• and
• a second operational amplifier having a third input terminal that receives a voltage of the second node, a fourth input terminal that receives the reference bias voltage from the reference bias source, and a second output terminal connected to gate electrodes of the third and fourth MOS transistors.