In: 21st IEEE international conference on electronics, circuits and systems (ICECS), pp 92–95 Shrimali H, Liberali V (2014) The start-up circuit for a low voltage bandgap reference. Osaki Y, Hirose T, Kuroki N, Numa M (2013) 1.2-V supply, 100-nW, 1.09-V bandgap and 0.7-V supply, 52.5-nW, 0.55-V subbandgap reference circuits for nanowatt CMOS LSIs. IEEE Trans Circuits Syst-II: Express Briefs 62(10):937–941 Yu C, Siek L (2015) An area-efficient current-mode bandgap reference with intrinsic robust start-up behaviour. In: IEEE Asian solid-state circuits conference, Beijing, China, pp 1–4 Hirose T, Ueno K, Kuroki N, Numa M (2010) A CMOS bandgap and sub-bandgap voltage reference circuits for nanowatt power LSIs. Proportional to absolute temperature (PTAT).Complementary to absolute temperature (CTAT).In proposed work, variety of start-up circuits such as start-up circuits with feedback mechanism, op-amp-based start-up circuits, inverter-based start-up circuits, switch-based start-up circuits, etc., are discussed. Majorly, small-sized start-up circuits are designed for low voltage applications because these circuits tend to reduced total power consumed by the circuit. These circuits are used alongside the bandgap reference voltage generator circuit for its proper operation. ![]() Further, it includes study of various start-up circuits such as their role, working, applications, advantages, and limitations. The proposed bandgap reference circuit is operating at the supply voltage of 1.8 V with power consumption of 1.74 µW. This paper presents a bandgap reference circuit which produces a reference voltage of 685 mV with the temperature coefficient of 7.835 ppm/☌ for the temperature range of −40 to 150 ☌.
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