Shunt driver circuit having - a first and a second connection terminal (N1, N2) forming a two-wire interface (N1, N2), the first connection terminal being prepared to receive a supply power and to provide an output signal (Sout), the second connection terminal being connected to a reference potential terminal, - an Operational Transconductance Amplifier, OTA, comprising a first input, a second input for receiving a first reference signal (Sref1) and an output for providing a signal depending on a difference between an input signal on the first input and the first reference signal (Sref1), - a resistor divider (R1, R2) connected between the first and the second connection terminal (N1, N2), the resistor divider (R1, R2) having a first and a second resistor (R1, R2) connected in series to each other, wherein a connection node between the first and the second resistor (R1, R2) is coupled to the first input of the OTA such that the first input of the OTA is supplied with the output signal which is scaled with a scaling factor implemented by the resistor divider (R1, R2), - a capacitor coupled to the output and to the second connection terminal, such that a control loop is formed between the output of the OTA and its first input via the capacitor and the second resistor, - a controlled current source coupled between the output of the OTA and the second connection terminal, - a first switch connected between the output of the OTA and the first connection terminal, - a voltage follower coupled between the first and the second connection terminal (N1, N2), the voltage follower having a control input connected to the output of the OTA, and - a circuit for generating a control signal (Sctl) for controlling the controlled current source, the control signal (Sctl) being generated as a function of a signal at an output terminal of the voltage follower and a second reference signal (Sref2), wherein the controlled current source is controlled to provide an additional current (Ifall) during a transient phase of the output signal (Sout). - a first and a second connection terminal (N1, N2) forming a two-wire interface (N1, N2), the first connection terminal being prepared to receive a supply power and to provide an output signal (Sout), the second connection terminal being connected to a reference potential terminal, - an Operational Transconductance Amplifier, OTA, comprising a first input, a second input for receiving a first reference signal (Sref1) and an output for providing a signal depending on a difference between an input signal on the first input and the first reference signal (Sref1), - a resistor divider (R1, R2) connected between the first and the second connection terminal (N1, N2), the resistor divider (R1, R2) having a first and a second resistor (R1, R2) connected in series to each other, wherein a connection node between the first and the second resistor (R1, R2) is coupled to the first input of the OTA such that the first input of the OTA is supplied with the output signal which is scaled with a scaling factor implemented by the resistor divider (R1, R2), - a capacitor coupled to the output and to the second connection terminal, such that a control loop is formed between the output of the OTA and its first input via the capacitor and the second resistor, - a controlled current source coupled between the output of the OTA and the second connection terminal, - a first switch connected between the output of the OTA and the first connection terminal, - a voltage follower coupled between the first and the second connection terminal (N1, N2), the voltage follower having a control input connected to the output of the OTA, and - a circuit for generating a control signal (Sctl) for controlling the controlled current source, the control signal (Sctl) being generated as a function of a signal at an output terminal of the voltage follower and a second reference signal (Sref2), wherein the controlled current source is controlled to provide an additional current (Ifall) during a transient phase of the output signal (Sout).