A Novel 3.63–V 6.73-ppm/°C CMOS Bandgap Reference

This paper presents a novel bandgap reference (BGR). Nine pairs of bipolar transistors are used to produce a voltage that is proportional to absolute temperature (PTAT), and three base-emitter voltages of bipolar transistors are used to produce a voltage that is complementary to absolute temperature (CTAT). The BGR of this structure can obtain a lower temper-ature coefficient with first-order temperature compensation. In the simulation, a voltage reference of 3.63 V with a temperature coefficient of 6.73 ppm/vC is achieved for a temperature range of - 45°C to 125°C at a 5 V supply voltage.