A method and circuit are shown for generating a higher order compensated
bandgap voltage is disclosed, in which a first order compensated bandgap
voltage and a linearly temperature dependent voltage are generated.
Thereafter, a difference between the linearly temperature dependent
voltage and the first order compensated bandgap voltage is generated. The
resulting difference voltage is squared, and finally the squared voltage
is added to the first order compensated bandgap voltage, resulting in a
higher order compensated bandgap voltage. There is also disclosed a
higher order temperature compensated bandgap circuit.