<p>A bandgap reference voltage generator (500). The bandgap reference voltage generator (500) includes a voltage generator circuit (510) for generating a voltage in response to temperature, a voltage level optimization circuit (520) and a reference voltage generator circuit (530). A first voltage (VPTAT) and a second voltage (Vbe) are generated by the voltage generator circuit (510). A current component increased with the temperature increment is generated by the first voltage (VPTAT). A current component decreased with the temperature increment is generated by the second voltage (Vbe). A third voltage (MVbe) which is obtained by optimizing the voltage level of the second voltage (Vbe) is generated by the voltage level optimization circuit (520). A reference voltage of a certain voltage level independent of temperature is generated by the reference voltage generator circuit (530) based on the first voltage (VPTAT) and the third voltage (MVbe).</p>
