| 一种用于高精度D/A转换器的数字校准技术 |
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| 引用本文： | 朱冬梅,傅东兵,石建刚,杨卫东,刘伦才,李开成.一种用于高精度D/A转换器的数字校准技术[J].微电子学,2010,40(1). |
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| 作者姓名： | 朱冬梅 傅东兵 石建刚 杨卫东 刘伦才 李开成 |
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| 作者单位： | 模拟集成电路国家级重点实验室,中国电子科技集团公司,电子第二十四研究所,重庆,400060 |
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| 摘 要： | 介绍了一种用于400MSPS16位高精度电流舵D/A转换器的数字静态校准技术。该校准技术利用地址产生器、钟控比较器、SAR寄存器和校准DAC,构成逐次逼近式校准环路。利用该校准环路,可以自动完成高7位电流源阵列单元的校准,从而极大地提高电流源的匹配性。采用该校准技术的16位电流舵D/A转换器的DNL大于±0.5LSB,达到了真正的16位精度。
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| 关 键 词： | 数字静态校准 电流舵D/A转换器 逐次逼近寄存器 |
Digital Static Calibration Technology for 16-Bit D/A Converter |
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| ZHU Dongmei,FU Dongbing,SHI Jiangang,YANG Weidong,LIU Luncai,LI Kaicheng.Digital Static Calibration Technology for 16-Bit D/A Converter[J].Microelectronics,2010,40(1). |
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| Authors: | ZHU Dongmei FU Dongbing SHI Jiangang YANG Weidong LIU Luncai LI Kaicheng |
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| Affiliation: | National Laboratory of Analog Integrated Circuits/a>;Sichuan Institute of Solid-State Circuits/a>;CETC/a>;Chongqing 400060/a>;P.R.China |
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| Abstract: | A digital static calibration technique for 400 MSPS 16-bit high-resolution current steering D/A converter was described.In this technique,address generator,clock controlled comparator,SAR register and calibration DAC was used to form a successive approximation calibration loop,with which calibration of current source array units could be automatically accomplished one by one,thus greatly improving matchability of current source.The 16-bit current steering D/A converter using this calibration technology had ... |
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| Keywords: | Digital static calibration Current steering DAC SAR |
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