Title :
A 0.885ppm/°C digitally calibrated bandgap voltage reference with robust start-up circuit
Author :
Ji He ; Long Zhao ; Yuhua Cheng
Author_Institution :
Shanghai Res. Inst. of Microelectron., Peking Univ., Shanghai, China
Abstract :
A low-voltage, low temperature coefficient (TC) bandgap voltage reference (BGR) with robust start-up circuit is designed using a standard CMOS 0.18μm process. The TC is adjusted by a digitally-controlled calibration scheme. A novel and robust start-up circuit is proposed for both successful start-up behavior and TC calibration according to the operation state of the BGR. The simulation results show that a reference voltage of 604mV is obtained with a quite low TC of 0.885ppm/°C, while its power consumption is only 303μW under 1.8V supply voltage.
Keywords :
CMOS integrated circuits; calibration; digital control; reference circuits; TC BGR; digitally calibrated bandgap voltage reference; digitally-controlled calibration scheme; low-voltage low temperature coefficient; power 303 muW; robust start-up circuit; size 0.18 mum; standard CMOS process; voltage 1.8 V; voltage 604 mV; Abstracts; BiCMOS integrated circuits; CMOS integrated circuits; CMOS technology; Photonic band gap; Robustness;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2014 12th IEEE International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4799-3296-2
DOI :
10.1109/ICSICT.2014.7021552
