Patent ID: 8284089

Claim:
A cyclic digital-to-analog converter, comprising: a first capacitor; a second capacitor; switching circuitry connected to the first and second capacitors, wherein the switching circuit is adapted to configure the first and second capacitors in at least a first mode where the first capacitor functions as a sampling capacitor and the second capacitor functions as a holding capacitor, and wherein the switching circuitry is adapted to configure the first and second capacitors in at least a second mode where the first capacitor functions as the holding capacitor and the second capacitor functions as the sampling capacitor; and a switch control circuit coupled to the switching circuitry, the switch control circuit adapted to receive a digital word to be converted and control the switching circuit to change from configuration in the first mode for a one bit of the digital word to configuration in the second mode for another bit of the digital word if the one bit and another bit of the digital word are adjacent one another and have different logical values and otherwise not change from configuration in the first mode if the one bit and another bit of the digital word have same logical values.