Design of band-gap reference for high temperature application

CMOS Band-gap reference circuits were designed in this project. Different approaches for the design are considered. In this project, the designs were simulated using 1.0 μm SOI-CMOS Technology from XFAB. XI10 from XFAB process is used. The sensitivity of thre...

全面介紹

Saved in:
書目詳細資料
主要作者: Su, Zun Mon.
其他作者: Goh Wang Ling
格式: Final Year Project
語言:English
出版: 2012
主題:
在線閱讀:http://hdl.handle.net/10356/50906
標簽: 添加標簽
沒有標簽, 成為第一個標記此記錄!
機構: Nanyang Technological University
語言: English
實物特徵
總結:CMOS Band-gap reference circuits were designed in this project. Different approaches for the design are considered. In this project, the designs were simulated using 1.0 μm SOI-CMOS Technology from XFAB. XI10 from XFAB process is used. The sensitivity of threshold voltages and mobility of the MOSFET transistors had created challenging problems to achieve the good band-gap reference circuit. A voltage reference circuits with a 5-V supply was successfully designed. The designed output voltage at 1.17 V achieved a temperature coefficient (TC) of 16.072 ppm/ᵒC. The reference voltage varies only 2 mV over 300ᵒC. The amplifier and bias generator were designed to meet the requirements of the band-gap reference circuits in order to perform well over a wide range of temperature. Two types of operational amplifiers, folded cascade amplifier and two-stage amplier, were designed for the circuit. Their advantages and disadvantages are discussed in the report. Other different approaches for the better performance of the band-gap reference circuits such as cascade current mirror and using gain enhanced mirror were considered.