REFERENCE VOLTAGE GENERATOR HAVING AT LEAST ONE BIPOLAR JUNCTION TRANSISTOR BIASED BY NEGATIVE BASE VOLTAGE AND ASSOCIATED REFERENCE VOLTAGE GENERATING METHOD

摘要

A reference voltage generator (100, 400, 700, 800) has a bandgap reference circuit (102) and a negative voltage generator (104, 200). The bandgap reference circuit (102) generates a reference voltage (VREF) according to at least one base-emitter voltage (VBE') of at least one bipolar junction transistor (Q1, Q2) . The negative voltage generator (104, 200) generates a negative voltage (NV), wherein at least one base terminal of the at least one bipolar junction transistor (Q1, Q2) is arranged to receive a base voltage derived from the negative voltage (NV).