Abstract: According to some embodiments, an electronic device is described, having a counter circuit which is configured to detect first pulses in a received first output signal and to determine a number of the detected first pulses, a counter circuit which is configured to detect second pulses in a received second output signal and to determine a number of the detected second pulses, and an error detection circuit configured to register a first difference between the number of first pulses detected in a first time interval and the number of second pulses detected in the first time interval, determine a second difference between the number of first pulses detected in a second time interval and the number of second pulses detected in the second time interval and indicate an error if the first difference and the second difference differ from one another by at least one predefined threshold value.

Abstract: According to various embodiments, an electronic device is described, comprising a device input for connecting an analog signal source, an analog-to-digital converter having an analog-to-digital converter input connected to the device input, an alternating current source configured to supply an alternating current to the analog-to-digital-converter input and a detection circuit configured to store a reference for an amplitude of a voltage signal at the analog-to-digital-converter input caused by the alternating current, receive an output of the analog-to-digital converter, determine the amplitude of the voltage signal at the analog-to-digital-converter input caused by the alternating current by filtering the output of the analog-to-digital converter and output an error signal if the reference for the amplitude differs from the determined amplitude by more than a predetermined threshold.

Abstract: According to some embodiments, an electronic device is described, having a counter circuit which is configured to detect first pulses in a received first output signal and to determine a number of the detected first pulses, a counter circuit which is configured to detect second pulses in a received second output signal and to determine a number of the detected second pulses, and an error detection circuit configured to register a first difference between the number of first pulses detected in a first time interval and the number of second pulses detected in the first time interval, determine a second difference between the number of first pulses detected in a second time interval and the number of second pulses detected in the second time interval and indicate an error if the first difference and the second difference differ from one another by at least one predefined threshold value.

Abstract: According to various embodiments, an electronic device is described, comprising a device input for connecting an analog signal source, an analog-to-digital converter having an analog-to-digital converter input connected to the device input, an alternating current source configured to supply an alternating current to the analog-to-digital-converter input and a detection circuit configured to store a reference for an amplitude of a voltage signal at the analog-to-digital-converter input caused by the alternating current, receive an output of the analog-to-digital converter, determine the amplitude of the voltage signal at the analog-to-digital-converter input caused by the alternating current by filtering the output of the analog-to-digital converter and output an error signal if the reference for the amplitude differs from the determined amplitude by more than a predetermined threshold.