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Abstract:
基于65 nm CMOS工艺、1.2V供电电压,设计了一款结合偏移双通道技术的流水线模数转换器( analog-to-digital convertor,ADC).芯片的测试结果表明,该校正方法有效地消除和补偿了电容失配、级间增益误差和放大器谐波失真对流水线ADC综合性能的制约.流水线ADC在125 MS/s采样率、3 MHz正弦波输入信号的情况下,信噪失真比(signal-and-noise distortion ratio,SNDR)从校正前的28 dB提高到61 dB,无杂散动态范围(spurious-free dynamic range,SFDR)从校正前的37 dB提高到62 dB.ADC芯片的功耗为72 mW,面积为1.56 mm2.偏移双通道数字校正技术在计算机软件上实现,数字电路在65 nm CMOS工艺、125 MHz时钟下估计得出的功耗为12 mW,面积为0.21 mm2.
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半导体技术
ISSN: 1003-353X
Year: 2011
Issue: 9
Volume: 36
Page: 701-704
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 1
Chinese Cited Count:
30 Days PV: 5
Affiliated Colleges: