臺灣博碩士論文加值系統

本論文提出三種具有低功率消耗之CMOS參考電壓電路。第一種電路為單端輸出電壓；而第二種與第三種電路則可提供不同的輸出電壓。電路利用MOS電晶體操作於弱反轉區時低功率消耗特性，適當的組合具有正、負溫度係數的電壓，以實現低功率消耗零溫度係數之參考電壓。相較於已知電路，本論文提出之電路具有低功率消耗、架構簡單，與較少晶片面積等優點。本論文使用HSPICE電路模擬軟體以0.18微米及0.35微米製程參數進行佈局前、後模擬，並進行下線製作，模擬與量測結果皆與理論推導相符合，證明了電路的可行性。本論文所提出之低功率CMOS參考電壓設計可適用於植入式醫療儀器與各種攜帶式電子裝置。

In this thesis, three Low-Power CMOS Reference Voltage circuits have been presented. The first circuit is with single-ended output voltage, and the second and third circuit provides multiple output voltages. In the proposed circuits, MOS transistors are biased to operate in the weak inversion region to achieve the low-power consumption characteristics. Appropriate combination of the positive and the negative temperature coefficients of the voltages, the zero-temperature coefficient reference voltage can be achieved. As compared with the existed circuits, the proposed circuits benefits from its low power consumption, simple structure, and less wafer area. In this thesis, both the pre/post layout simulation and measurement results with 0.18m and 0.35m process parameters are given to show the validity of the proposed circuits. The proposed circuits can be applied to embedded medical instruments and portable electronic devices.

摘要...i
Abstract...ii
誌謝...iii
目錄...iv
表目錄...vii
圖目錄...viii
符號說明...x
第一章 緒論...1
1.1研究動機與目的...1
1.2積體電路的發展沿革...1
1.3設計流程...2
1.4研究重點...4
1.5論文架構...4
第二章 能隙參考電壓回顧...5
2.1簡介 ...5
2.2啟動電路與弱反轉區(Sub-threshold region)特性...5
2.2.1啟動電路...5
2.2.2弱反轉區...6
2.3正溫度係數與復溫度係數特性...8
2.3.1正溫度係數...8
2.3.2負溫度係數...9
2.4傳統之參考電壓電路...10
2.5傳統之MOSFET參考電壓電路...11
第三章 改良式參考電壓設計...14
3.1二階溫度係數補償單端參考電壓電路之工作原理...15
3.2二階溫度係數補償參考電壓電路之佈局前模擬結果...17
第四章 低功率參考電壓設計...19
4.1低功率參考電壓單端電路...19
4.1.1低功率參考電壓單端電路之工作原理...19
4.1.2低功率參考電壓單端電路之佈局前模擬結果...22
4.2低功率參考電壓差動電路...23
4.2.1低功率參考電壓差動電路之工作原理...23
4.2.2低功率參考電壓差動電路之佈局前模擬結果...26
第五章 佈局後模擬與量測結果...28
5.1設計流程...28
5.2電路佈局後模擬結果...30
5.2.1二階溫度係數補償單端參考電壓...30
5.2.2低功率參考電壓單端電路...33
5.2.3低功率參考電壓差動電路...35
5.3電路晶片實現與晶片量測結果...39
5.3.1二階溫度係數補償單端參考電壓...39
5.3.2低功率參考電壓單端電路...45
第六章 結論...50
參考文獻...51
Extended Abstract...54
簡歷(CV)...59

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