| 一种四象限14位乘法型D/A转换器设计 |
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| 引用本文： | 雷郎成,罗雁心,刘虹宏,杜宇彬,高炜褀,张俊,吴秋霞,付东兵. 一种四象限14位乘法型D/A转换器设计[J]. 微电子学, 2022, 52(4): 572-576 |
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| 作者姓名： | 雷郎成 罗雁心 刘虹宏 杜宇彬 高炜褀 张俊 吴秋霞 付东兵 |
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| 作者单位： | 中国电子科技集团公司 第二十四研究所, 重庆 400060 |
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| 基金项目： | 国家自然科学基金资助项目(60906009)；中国博士后科学基金资助项目(20090451423)；重庆科委基金资助项目(CSTC2010AA2004) |
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| 摘 要： | 设计了一种14位乘法型D/A转换器。采用高3位温度计编码、低11位二进制编码的分段电流模R-2R电阻网络结构，规避了高分辨率二进制电流模R-2R电阻网络开关尺寸大、版图匹配难度大的缺点。基于混合信号CMOS工艺进行了流片，实测DNL在±0.5 LSB以内，INL在±0.8 LSB以内。该D/A转换器适用于工业控制、仪器仪表等领域。
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| 关 键 词： | 乘法型D/A转换器 电流模R-2R电阻网络 薄膜电阻 激光修调 |
| 收稿时间： | 2022-03-30 |
Design of a Four-Quadrant 14-bit Multiplying D/A Converter |
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| LEI Langcheng,LUO Yanxin,LIU Honghong,DU Yubin,GAO Weiqi,ZHANG Jun,WU Qiuxi,FU Dongbing. Design of a Four-Quadrant 14-bit Multiplying D/A Converter[J]. Microelectronics, 2022, 52(4): 572-576 |
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| Authors: | LEI Langcheng LUO Yanxin LIU Honghong DU Yubin GAO Weiqi ZHANG Jun WU Qiuxi FU Dongbing |
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| Affiliation: | The 24th Research Institute of China Electronics Technology Group Corp., Chongqing 400060, P. R. China |
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| Abstract: | A 14-bit multiplying D/A converter was designed. A piecewise current mode R-2R resistor network structure with high 3-bit thermometer code and low 11-bit binary code was adopted to avoid the disadvantages of large switch size and difficult layout matching of high resolution binary current mode R-2R resistor network. The circuit was fabricated in a mixed signal CMOS process. The measured DNL was within ±0.5 LSB, and the INL was within ±0.8 LSB, which was suitable for the applications of industrial control and instrumentation. |
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| Keywords: | multiplying D/A converter current-mode R-2R resistance network thin-film resistor laser trim |
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