This disclosure is directed to devices, integrated circuits, and methods for sensing cumulative radiation doses. In one example, a device includes a cell configured to be set to an initial resistance and to vary in resistance cumulatively in response to incident radiation. The device also includes an output terminal connected to the cell and configured to vary in voltage in response to the resistance of the cell. The device also includes a comparator configured to deliver an output signal in response to the voltage of the output terminal reaching a threshold voltage. The device also includes a cell charging circuit configured to reset the cell to the initial resistance in response to the output signal from the comparator. The device also includes a counter configured to count a number of times the comparator delivers the output signal.