Embodiments of the present disclosure may include an ADC circuit including channel register sets, a conversion request flip-flop, a priority encoder circuit, and a controller circuit. The controller circuit may be configured to receive a conversion request signal, latch the conversion request signal into the conversion request flip-flop, determine by the priority encoder circuit a highest priority pending conversion request, and output an active channel identifier code. The channel identifier code may be configured to select the data channel register sets that are active by identifying received selection bits. The embodiments may include logic to store a converted value from a selected analog input to a data output register based on the channel identifier code.