Electronic circuit with self-calibrated ptat current reference and method for actuating the same

An electronic circuit with a self-calibrated PTAT current reference, the electronic circuit including a PTAT current generator dependent on at least one integrated resistor, for supplying a PTAT output current,

• wherein the electronic circuit further includes a reference current generator dependent on at least one switched capacitor resistor, for supplying a reference current, and
• wherein the reference current and the PTAT output current are compared in a comparator so as to digitally adapt the integrated resistor, which is programmable, or to digitally adapt the dimensional ratio of transistors of a current mirror in the PTAT current generator, to supply the adapted PTAT output current.