An on chip temperature independent current generator, TICG, for generating a temperature independent current (I out), said TICG comprising: - an on chip current generator having an output, the on chip current generator being configured to provide an electrical current (I PTAT) being proportional to an absolute temperature of said chip; - a current mirror; - an on chip resistor; - an on chip transistor having a base connectable to a temperature independent reference voltage generator, a collector connected to the current mirror and an emitter connected to the output of the on chip current generator and connected via the on chip resistor to a reference potential; - wherein the current mirror is adapted to mirror a collector current (I c) flowing through the collector of said on chip transistor to generate the temperature independent current (I out) at an output terminal of said TICG; the TICG being characterised in that: said on chip transistor is an on chip bipolar NPN transistor; said on chip current generator comprises an integrated CMOS current mirror configured to provide the electrical current (I ptat) being proportional to the absolute temperature of said chip at an output terminal coupled to the output of the on chip current generator; a first bipolar transistor having its base terminal and its collector terminal connected to the reference potential and its emitter terminal configured to receive a first current (s*I PTAT) from a first drain terminal of the integrated CMOS current mirror, a second bipolar transistor having its base terminal and its collector terminal connected to the reference potential and its emitter terminal configured to receive the first current (s*I PTAT) from a second drain terminal of the integrated CMOS current mirror, a resistor having a predetermined resistance (R PTAT), the resistor having a first terminal coupled to the emitter of the second bipolar transistor and a second terminal coupled to the second drain terminal on the integrated CMOS current mirror, and an operation amplifier having an inverting input (-) coupled to the emitter of the first bipolar transistor, a non-inverting input (+) coupled to the second terminal of the resistor, and an output connected to a common gate terminal of the integrated CMOS current mirror, wherein said predetermined resistance of the resistor of the on chip current generator is temperature independent, and wherein said on chip resistor is of the same type and material as the resistor of said on chip current generator, and said on chip resistor has a resistance being m times the resistance (R PTAT) of the resistor of said on chip current generator, wherein m is a positive real number. - an on chip current generator having an output, the on chip current generator being configured to provide an electrical current (I PTAT) being proportional to an absolute temperature of said chip; - a current mirror; - an on chip resistor; - an on chip transistor having a base connectable to a temperature independent reference voltage generator, a collector connected to the current mirror and an emitter connected to the output of the on chip current generator and connected via the on chip resistor to a reference potential; - wherein the current mirror is adapted to mirror a collector current (I c) flowing through the collector of said on chip transistor to generate the temperature independent current (I out) at an output terminal of said TICG; an integrated CMOS current mirror configured to provide the electrical current (I ptat) being proportional to the absolute temperature of said chip at an output terminal coupled to the output of the on chip current generator; a first bipolar transistor having its base terminal and its collector terminal connected to the reference potential and its emitter terminal configured to receive a first current (s*I PTAT) from a first drain terminal of the integrated CMOS current mirror, a second bipolar transistor having its base terminal and its collector terminal connected to the reference potential and its emitter terminal configured to receive the first current (s*I PTAT) from a second drain terminal of the integrated CMOS current mirror, a resistor having a predetermined resistance (R PTAT), the resistor having a first terminal coupled to the emitter of the second bipolar transistor and a second terminal coupled to the second drain terminal on the integrated CMOS current mirror, and an operation amplifier having an inverting input (-) coupled to the emitter of the first bipolar transistor, a non-inverting input (+) coupled to the second terminal of the resistor, and an output connected to a common gate terminal of the integrated CMOS current mirror, wherein said predetermined resistance of the resistor of the on chip current generator is temperature independent, and wherein said on chip resistor is of the same type and material as the resistor of said on chip current generator, and said on chip resistor has a resistance being m times the resistance (R PTAT) of the resistor of said on chip current generator, wherein m is a positive real number.