| 电荷再分配DAC级间耦合电容值的优化设计 |
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| 引用本文： | 王娜,王继安,尚晓丹,张佳,李威,龚敏.电荷再分配DAC级间耦合电容值的优化设计[J].微电子学,2006,36(4):437-440,445. |
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| 作者姓名： | 王娜 王继安 尚晓丹 张佳 李威 龚敏 |
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| 作者单位： | 1. 四川大学,微电子学系,微电子技术四川省重点实验室,四川,成都,610064
2. 电子科技大学,微电子与固体电子学院,四川,成都,610054 |
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| 摘 要： | 介绍了多级耦合结构高分辨率电荷再分配DAC级间耦合电容值的设计方法。重点讨论了如何根据寄生电容值,对耦合电容值进行优化。将该方法应用到一个16位电荷再分配逐次逼近A/D转换器的设计中。通过Cadence环境下的Spectre仿真工具进行仿真,验证了该方法的正确性。
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| 关 键 词： | 电荷再分配 D/A转换器 耦合电容 寄生电容 逐次逼近A/D转换器 |
| 文章编号： | 1004-3365（2006）04-0437-04 |
| 收稿时间： | 2005-10-31 |
| 修稿时间： | 2005-10-312005-12-15 |
Optimal Design of Coupling Capacitors in Charge Scaling D/A Converter |
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| WANG Na,WANG Ji-an,SHANG Xiao-dan,ZHANG Jia,LI Wei,GONG Min.Optimal Design of Coupling Capacitors in Charge Scaling D/A Converter[J].Microelectronics,2006,36(4):437-440,445. |
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| Authors: | WANG Na WANG Ji-an SHANG Xiao-dan ZHANG Jia LI Wei GONG Min |
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| Affiliation: | 1. Key Lab of Microelec. of Sichuan Prov. , Dept. of Microelec. , Sichuan Univ. , Chengdu, Sichuan 610064, P. R. China 2. College ofMicroelec, and Sol. Sta. Electronics,Univ. Elec. Sci. and Technol. of China, Chengdu, Sichuan 610054, P. R. China |
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| Abstract: | A method to design the value of coupling capacitors in a multistage coupled high-resolution charge-scaling D/A converter is presented.Optimization of values of the coupling capacitors is discussed based on values of the parasitic capacitors.Using this method,a 16-bit charge-redistribution successive approximation A/D converter was designed.Simulation with Spectre in Cadence environment validates the effectiveness of the method. |
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| Keywords: | Charge scaling D/A converter Coupling capacitor Parasitic capacitor Successive approximation ADC |
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