Design of 5×10~-6/℃ Bandgap Voltage Reference
Xiao Ben · Dianzi qijian · 2006
In order to reduce the temperature drift characteristics of the voltage reference,and furthermore develop the whole performance of the Pipline/ADC,we achieve a voltage reference with temperature coefficient lower than 5×10~-6/℃,by adopting the tempereature compensation of quadratic coefficient to improve the traditional circuits with temperature compensation of one order.The total circuit which is simulated by Hspice is designed with the mature and advanced CMOS technics of Chrt0.35 μm.The result of the simulation is shown that this kind of voltage reference has much lower temperature coefficient.The average value is smaller than 5×10~-6/℃.