A new curvature-corrected bandgap reference is presented which is able
to function at supply voltages as low as 1 V, at a supply current of
only 100 muA. After trimming this bandgap reference has a temperature
coefficient (TC) of +/- 4 ppm/degrees-C. The reference voltage is abou
t 200 mV and it can simply be adjusted to higher reference voltages. T
he temperature range of this circuit is from 0 to 125-degrees-C. This
bandgap reference is realized using a standard bipolar process with ba
se-diffused resistors.