Patent ID: 6841982

Claim:
A bandgap reference generator comprising: a first MOS transistor of a first type, including first and second terminals spaced apart with a channel therebetween and including a gate for controlling current in said channel, said first terminal being coupled to a voltage node; a first bipolar junction transistor including an emitter coupled to the second terminal of the first MOS transistor of the first type, including a collector coupled to a ground node, and including a base coupled to said collector; a second MOS transistor of the first type including first and second terminals spaced apart with a channel therebetween and including a gate for controlling current in said channel, said first terminal being coupled to said voltage node, said gate being coupled to the gate of the first MOS transistor of the first type; a resistor including first and second terminals, said first terminal being coupled to the second terminal of the second MOS transistor of the first type; a second bipolar junction transistor including an emitter coupled to the second terminal of the resistor, including a collector coupled to said ground node, and including a base coupled to said collector; an operational amplifier including a first input coupled to the second terminal of the first MOS transistor of the first type, including a second input coupled to the resistor, and including an output; and a filter coupled between the voltage node and the output of the operational amplifier.