| A 12bit 300MHz Current-Steering CMOS D/A Converter |
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| 引用本文： | Ni Weining,Geng Xueyang,and Shi Yin. A 12bit 300MHz Current-Steering CMOS D/A Converter[J]. 半导体学报, 2005, 26(6): 1129-1134 |
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| 作者姓名： | Ni Weining Geng Xueyang and Shi Yin |
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| 作者单位： | 中国科学院半导体研究所 北京100083(倪卫宁，耿学阳)，中国科学院半导体研究所 北京100083(石寅) |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | The proposed DAC consists of a unit current-cell matrix for 8MSBs and a binary-weighted array for 4LSBs,trading-off between the precision,speed,and size of the chip.In order to ensure the linearity of the DAC,a double Centro symmetric current matrix is designed by the Q2 random walk strategy.To achieve better dynamic performance,a latch is added in front of the current switch to change the input signal,such as its optimal crosspoint and voltage level.For a 12bit resolution,the converter reaches an update rate of 300MHz.
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| 关 键 词： | D/A converter current-steering CMOS mixed integrated circuit crosspoint Q2 random walk |
A 12bit 300MHz Current-Steering CMOS D/A Converter |
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| Ni Weining,Geng Xueyang,SHI Yin. A 12bit 300MHz Current-Steering CMOS D/A Converter[J]. Chinese Journal of Semiconductors, 2005, 26(6): 1129-1134 |
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| Authors: | Ni Weining Geng Xueyang SHI Yin |
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| Abstract: | The proposed DAC consists of a unit current-cell matrix for 8MSBs and a binary-weighted array for 4LSBs,trading-off between the precision,speed,and size of the chip.In order to ensure the linearity of the DAC,a double Centro symmetric current matrix is designed by the Q2 random walk strategy.To achieve better dynamic performance,a latch is added in front of the current switch to change the input signal,such as its optimal cross-point and voltage level.For a 12bit resolution,the converter reaches an update rate of 300MHz. |
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| Keywords: | D/A converter current-steering CMOS mixed integrated circuit cross-point Q2 random walk |
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