An improved CMOS bandgap reference with self-biased cascoded current mirrors

被引：0
|
作者：
Wu, Wen [1 ]
Wen Zhiping [1 ]
Zhang Yongxue [1 ]
机构：
[1] Beijing Microelect Tech Inst, Coll Microelect & Solid Elect, Beijing, Peoples R China
来源：
EDSSC: 2007 IEEE INTERNATIONAL CONFERENCE ON ELECTRON DEVICES AND SOLID-STATE CIRCUITS, VOLS 1 AND 2, PROCEEDINGS | 2007年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
n this paper, an improved cascoding CMOS bandgap reference(BGR) without opamp is presented. By incorporating a simple feedback transistor and several resistors into conventional cascoding circuit, the power-supply rejection and 2(nd)-order curvature compensation circuit is formed. With Spectre tool and 0.35 mu m CMOS model, the simulation has been carried out and the results show that the PSRR and temperature performance are both improved evidently. PSRR of the improved BGR is 93dB at DC and TC is 7ppm/ degrees C over the temperature range of -40 similar to+125 degrees C.
引用
收藏
页码：945 / 948
页数：4
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