The description that follows relates to a circuit having galvanic isolation. According to an exemplary embodiment, the circuit has a transmission circuit, coupled to a galvanically isolating device, that is designed to transmit a first signal via the galvanically isolating device. The circuit further has a first receiver circuit, coupled to the galvanically isolating device, that is designed to receive the transmitted first signal from the galvanically isolating device. A second receiver circuit coupled to the galvanically isolating device is designed to receive the transmitted first signal from the galvanically isolating device and to take the received first signal as a basis for generating a wake-up signal.