A High Order Curvature-Compensated Op-Amps-Avoided Bandgap Reference
Based on Brokaw bandgap cell, an improved implementation of BGR which consists of a temperature compensated circuit and a simple feedback loop circuit is presented. The circuit exploits a highorder compensation method to realize a low TC and uses an op-amp-avoided feedback loop circuit to save the power dissipation. Implemented in 0.5um BCD process, the proposed circuit achieves a TC of 1.9 pprn/℃ over a temperature range from -40℃ to 125℃.
Qi Yu Zhi Chen Ning Ning Hao Liu Hong Chen Wandong Zhang
State Key Lab. of Elec. Thin Films and Integrated Devices, UESTC, Chengdu, China
国际会议
上海
英文
494-496
2010-11-01(万方平台首次上网日期,不代表论文的发表时间)