A device and method of providing thermal compensation for integrated
circuits, e.g., complementary metal-oxide semiconductor integrated
circuits ("IC") is described. The device is an IC (e.g., digital, analog,
and mixed-signal circuits) with a digital voltage control system ("VCS")
having a temperature-adaptive digital DC-to-DC power converter. In one
embodiment, the DC-to-DC converter includes a power stage, which converts
a voltage of an input power source to a variable supply voltage, a
delay-line-based temperature sensing circuit that continuously monitors
temperature changes, and adjusts the frequency and process speed of the
IC to compensate for any performance degradation caused by thermal
effects by adjusting the voltage supplied to the IC to increase or
decrease the frequency and process speed of the IC in proportion to any
abnormal temperature changes in the IC.