| 一种GSM无线发射系统中的低功耗数模转换器 |
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| 引用本文： | 惠志达,袁宇丹,郭亚炜,程旭,曾晓洋.一种GSM无线发射系统中的低功耗数模转换器[J].固体电子学研究与进展,2011,31(1):90-94,101. |
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| 作者姓名： | 惠志达 袁宇丹 郭亚炜 程旭 曾晓洋 |
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| 作者单位： | 复旦大学专用集成电路与系统国家重点实验室,上海,201203 |
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| 基金项目： | 国家高科技研究与发展863重大专项，复旦大学青年科学基金，专用集成电路与系统国家重点实验室自主课题面上项目 |
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| 摘 要： | 针对GSM标准无线发射系统中数模转换器(DAC)的要求,分析了影响其性能和功耗的限制因素,并在SMIC 0·13μm CMOS工艺1.2 V电源电压下设计了一款10位电流驱动型数模转换器(Current-steering DAC).使用最佳拟合线的算法衡量电流源匹配的随机误差对DAC静态非线性的影响,使得DAC的电流源...
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| 关 键 词： | 无线发射系统 低电压 低功耗 电流驱动型数模转换器 |
A Low-power Digital-to-analog Converter for GSM Wireless Transmitters |
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| HUI Zhida,YUAN Yudan,GUO Yawei,CHENG Xu,ZENG Xiaoyang.A Low-power Digital-to-analog Converter for GSM Wireless Transmitters[J].Research & Progress of Solid State Electronics,2011,31(1):90-94,101. |
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| Authors: | HUI Zhida YUAN Yudan GUO Yawei CHENG Xu ZENG Xiaoyang |
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| Abstract: | This paper focuses on the requirements of the digital-to-analog converters(DACs) for GSM wireless transmitters,and analyzes the limiting factors of the performance and power consumption. A 10 bit current-steering DAC is realized in SMIC 0.13-μm CMOS technology with 1.2 V supply voltage.The influence of current source mismatch on the DAC static linearity is taken into account by means of the Best-Fit line method,which only requires a 0.02 mm2 current source matrix area and a 0.04 mm2 DAC core area.The measured integral nonlinearity(INL) and differential nonlinearity(DNL) are 0.62 LSB and 0.68 LSB,respectively,and the measured spurious free dynamic range(SFDR) is 72 dB for signals in bandwidth at 16 MS/s clock.The DAC total power consumption is below 1.4 mW. |
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| Keywords: | wireless transmitter low voltage low power current-steering DAC |
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