Design of bandgap reference and current reference generator with low supply voltage

A design of a CMOS bandgap voltage reference and reference current generator is described and the measurement results are presented in wide temperature range. Using by the resistive subdivision method, the reference circuit is operated with low supply. The measured reference voltage is 630 mV and temperature coefficient of bandgap reference is 29 ppm/°C from -10°C to 100°C with 1.2 V supply voltage. The reference current of generator which uses the reference voltage is 50.2 uA in that temperature range.