Bandgap voltage generator

A circuit for generating a reference voltage of bandgap type, comprising: a current mirror assembly of cascode type comprising, from a high supply rail, at least two parallel branches of P-channel MOS transistors; a bipolar assembly in series with one of said branches of the mirror assembly down to a low supply rail, formed of two parallel branches each comprising, in series, a diode-connected bipolar transistor and, respectively, one resistor and two resistors; and a differential amplifier for balancing the currents in the two branches of the bipolar assembly, the reference voltage being provided by the terminal of interconnection of the mirror assembly with the bipolar assembly.