Moving-Sum Charge Pump

An integrated circuit, comprising:

• a first stage having multiple charge storage elements arranged in parallel to provide first and second combinations of voltages in alternating first and second phases, wherein the first combination of voltages is provided in the first phase and the second combination of voltages is provided in the second phase which is different than the first phase;
• a second stage having multiple multiplexers arranged in parallel to receive the first and second sets of voltages in the alternating first and second phases, each multiplexer providing a selected voltage from the first and second sets of voltages based on a conversion ratio;
• and
• a third stage having multiple sampling charge storage elements arranged in parallel to receive the selected voltages from each multiplexer and provide an output voltage as a sum of the selected voltages received from each multiplexer.

A method, comprising:

• arranging multiple sets of charge storage elements in parallel to provide multiple sets of voltages in alternating phases;
• arranging multiple multiplexers in parallel to receive the multiple sets of voltages in the alternating phases, wherein each multiplexer provides a selected voltage from the multiple sets of voltages based on a conversion ratio;
• and
• arranging multiple sampling charge storage elements in parallel to receive the selected voltages from each multiplexer, wherein the multiple sampling charge storage elements provide an output voltage as a sum of the selected voltages received from each multiplexer.