a bandgap reference voltage generator includes compensation circuitry that renders the performance of the bandgap reference voltage generator independent of the static value of the supply voltage , v cc by providing a constant current through the self - regulating loop in the generator . the compensation circuitry effectively provides compensating terms for each v cc - dependent term in the network equation that describes the operation of the bandgap reference voltage generator . in a preferred embodiment , the compensating terms also serve to make the operation of the bandgap voltage generator independent of temperature .