DocumentCode
1629816
Title
A high order curvature-compensated op-amps-avoided Bandgap Reference
Author
Yu, Qi ; Chen, Zhi ; Ning, Ning ; Liu, Hao ; Chen, Hong ; Zhang, Wandong
Author_Institution
State Key Lab. of Elec. Thin Films & Integrated Devices, UESTC, Chengdu, China
fYear
2010
Firstpage
494
Lastpage
496
Abstract
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 high-order compensation method to realize a low TC and uses an op-amp-avoided feedback loop circuit to save the power dissipation. Implemented in 0.5μm BCD process, the proposed circuit achieves a TC of 1.9 ppm/°C over a temperature range from -40°C to 125°C.
Keywords
operational amplifiers; Brokaw bandgap cell; feedback loop circuit; high order curvature-compensation; op-amps-avoided bandgap reference; power dissipation; temperature -40 degC to 125 degC; temperature compensated circuit; Equations; Feedback loop; MOSFET circuits; Photonic band gap; Temperature dependence; Temperature distribution;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State and Integrated Circuit Technology (ICSICT), 2010 10th IEEE International Conference on
Conference_Location
Shanghai
Print_ISBN
978-1-4244-5797-7
Type
conf
DOI
10.1109/ICSICT.2010.5667368
Filename
5667368
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