Bandgap reference circuit, corresponding device and method

A circuit, comprising:

• a bandgap voltage generator circuit including a first bipolar transistor and a second bipolar transistor, wherein the first and second bipolar transistors have base terminals jointly coupled to a bandgap node to provide a bandgap voltage;
• a first transistor coupled in series with a collector terminal of the first bipolar transistor, wherein the first transistor is connected to a first circuit node;
• a second transistor having a current flow path in series with a collector terminal of the second bipolar transistor, wherein the second transistor is connected to a second circuit node;
• and
• a voltage generator circuit configured to apply a bias voltage to the control terminals of the first and second transistors that is referenced to the bandgap voltage at the bandgap node;
• wherein the voltage generator circuit comprises a diode having an anode coupled to the bandgap node and a cathode coupled to the control terminals of the first and second transistors.