Abstract: A method and circuit for providing a reference voltage to a charge balance circuit. The method includes transferring charge corresponding to VBE and charge corresponding to &Dgr;VBE to a summing node of the charge balance circuit, where VBE is a voltage produced across a p-n junction and where &Dgr;VBE is a difference between two VBE voltages. With such method, instead of forming a bandgap reference circuit which produces a bandgap reference voltage and applying such voltage to the reference sampling and charge transfer circuit, charge corresponding to VBE and charge corresponding to &Dgr;VBE are transferred to the input summing node of the modulator in correct proportion and with a polarity corresponding to the modulator output.