ADC input signal integrity can be checked using a mix of hardware and software runtime diagnostic on ADC conversions. Filtering or plausibility check (e.g. value fall in an expected range) of the converted values can be performed using some of the built in hardware mechanisms available within the device. Plausibility check of the input signal can be checked with the help of comparator by setting the proper high and low threshold values. The plausibility check of converted results can be checked by using ADC Post Processing Block.