A digital-to-analog converter (DAC) comprises a capacitive DAC that
comprises N first capacitances that are connected in parallel and that
have first ends and second ends, wherein N is an integer greater than
one, and N first switches that selectively connect a selected one of the
second ends of the N first capacitances to a common node and non-selected
ones of the second ends of the N first capacitances to one of a voltage
potential and a reference potential. Capacitance values of the N first
capacitances are substantially equal. A second DAC communicates with the
common node.