A circuit for setting the operating point of a BGR circuit is disclosed. In the
circuit, a voltage comparator (P5, P6, I3) compares the output
voltage of an operational amplifier of the BGR circuit with the voltage dropping
across an auxiliary circuit branch (R5, D3). The auxiliary circuit
branch (R5, D3) resembles the arrangement of a circuit branch (R3,
D1) of the BGR circuit, and a current source (P8) generates as a
function of the result of the comparison a setting current that is fed into an
input of the operational amplifier.