Circuitry and methods for sampling a signal are disclosed. An example of the circuitry includes a node for coupling the circuitry to the signal being sampled and a plurality of capacitors, wherein each capacitor is selectively coupled to the node by a switch. An analog-to-digital converter is coupled to the node and is for measuring the voltages of individual ones of the plurality of capacitors and converting the voltages to digital signals. Delay circuitry is coupled to each of the switches, the delay circuitry is for closing one switch at a time for a predetermined period.