A CMOS Referenced Circuit with Low-power Consumption
Tong Qiao-ling · Microelectronics & Computer · 2006
Based on the principle of the bandgap reference, this paper designs a referenced circuit with low-power consumption working on the subthreshold region, which is used in a Li-lon and Li-polymer battery charge protection monolithic. With 0.6μm, N well CMOS technology, Hspice simulation shows that this circuit can operate with temperature coefficient ±10ppm/℃(ambient temperature -40℃~80℃), the maximum consumptive current less than 0.15μA(power 1.8V~8V), when the referenced voltage is 1.068V. The whole charge protection IC's silicon result shows that the power consumption is less than 0.6μW.