A digital-to-analog converter has both a plurality of DAC stages and a plurality of dummy stages. Each DAC stage causes a glitch or disturbance to a pair of reference voltages when the DAC stage changes its switching state. Each dummy stage also causes a similar glitch or disturbance to the pair of reference voltages when the dummy stage changes its switching state. The dummy stages are controlled to change their switching state responsive to how many DAC stages change their switching state such that a total glitch induced onto the reference voltages remains substantially constant across a succession of digital words converted by the digital-to-analog converter into an analog output signal.