Abstract: A system for the measurement of a supply current of an electronic circuit is disclosed. The system includes: a first part for applying and controlling at least one voltage and one current on the circuit; a second part being fed by an input voltage and delivering a first output voltage and a first output current on a first terminal and a second output current on a second terminal, the first output voltage being essentially equal to the input voltage, said second output current being essentially proportional to the first output current being the supply current; a switch in between the first and the second part, being controlled by trigger means controlled by the first part, for turning the switch off or on whereby switching the second part in measurement mode or in bypass mode.