Overvoltage protection integrated in module temperature protection

The invention relates to a circuit for providing isolated data transmission. The circuit includes a sensor adapted to be coupled to a conversion circuit adapted to generate a first voltage level and a second voltage level in a chronological manner using an offset voltage and a signal generated by the sensor, where the second voltage level is greater than the first voltage level. The circuit comprises a voltage-to-current converter circuit adapted to convert a first voltage level to a first current level within a current range and to convert a second voltage level to a second current level within the current range, wherein the first current level and the second current level are provided to the optocoupler in chronological order. The optical coupler is adapted to receive a first current level and a second current level in a chronological order, and to provide an isolated output voltage having a first voltage when the first current level is provided to the optical coupler, and to provide an isolated output volt