2007•Semiconductor TechnologyRequires access
Design of High Precision CMOS Bandgap Voltage Reference
Zhu Jiabing
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Abstract
A novel super performance CMOS voltage reference circuit was designed based on the theory of bandgap voltage reference.Using SMIC 0.18 μm CMOS process,Hspice simulation shows that the average temperature coefficient is 6.3×10-6/℃ in the rage of-10～120 ℃.The circuit also has a high power supply rejection ratio,about 69 dB when power supply voltage changes from 3.0～3.6 V.It can be used in the high precision driver circuit of phase change memory chip.