电子与封装
• 电路与系统 • 下一篇
庞立鹏，潘福跃，苏小波
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PANG Lipeng, PAN Fuyue, SU Xiaobo
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摘要： 提出了一种用于高速电荷域流水线模数转换器（Analog-to-Digital Converter，ADC）中的高精度大摆幅电荷传输电路，采用栅压自举技术，克服了现有电荷传输电路中信号摆幅受限的问题。基于该技术，采用0.18 μm CMOS工艺，设计并实现了一款14位200 MSample/s电荷域流水线ADC。在189.9 MHz信号输入和全采样率条件下，信噪比为61.7 dBFS，无杂散动态范围为72.6 dBc；在1.8 V供电下，ADC整体功耗仅为102 mW。
关键词: 电荷域模数转换器, 电荷传输电路, 栅压自举技术, 信号摆幅
Abstract: A high-precision large-swing charge transfer circuit for high-speed charge-domain pipelined analog-to-digital converter (ADC) is proposed. The bootstrapped technology is adopted to overcome the limitation of the signal-swing in the existing charge transfer circuit. With the proposed charge transfer circuit，a 14-bit 200 MSample/s charge-domain pipelined ADC is designed and implemented in 0.18 μm CMOS process. The implemented ADC achieves 61.7 dBFS signal to noise ratio and 72.6 dBc spurious free dynamic range for a 189.9 MHz input signal at full sampling rate. It consumes a total power of 102 mW from a 1.8 V supply.
Key words: charge-domain analog-to-digital converter, charge transfer circuit, bootstrapped technology, signal-swing
庞立鹏, 潘福跃, 苏小波. 用于电荷域ADC的大摆幅电荷传输电路设计[J]. 电子与封装, doi: 10.16257/j.cnki.1681-1070.2022.0601.
PANG Lipeng, PAN Fuyue, SU Xiaobo. Design of a Large-Swing Charge Transfer Circuit for Charge-Domain Analog-to-Digital Converter[J]. Electronics and Packaging, doi: 10.16257/j.cnki.1681-1070.2022.0601.
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链接本文: http://ep.org.cn/CN/10.16257/j.cnki.1681-1070.2022.0601
