1. A method for measuring a measurable capacitance, the method comprising the steps of: performing a charge transfer process for a number of times equal to at least two, wherein the charge transfer process comprises the steps of applying a pre-determined voltage to the measurable capacitance and allowing the measurable capacitance to share charge with a filter capacitance through a passive impedance that remains coupled to both the measurable capacitance and to the filter capacitance throughout the applying and allowing steps; and determining a value of the measurable capacitance as a function of a representation of a charge on the filter capacitance and the number of times that the charge transfer process was performed.