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设计了一种适用于心电信号处理的连续时间LCADC电路。电路去掉了传统电压模式的DAC模块,采用了N-bit电流舵DAC,解决了传统电压模式DAC存在的电容漏电问题。该电路包括一个电压至电流转换器、7-bit电流舵DAC、电平交叉检测模块以及偏移标准补偿模块。电路采用SMIC 0.18μm CMOS工艺设计,电源电压为1 V。仿真结果表明,整体电路功耗为8.1μW@500 Hz。通过MATLAB对数据进行处理,SNDR为53.8 dB@500 Hz, ENOB达到了8.64 bit,输入信号范围内SNDR范围为52.8~63.6 dB,电路功耗范围为7.3~8.5μW。该电路适用于低频心电信号的...
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微电子学
ISSN: 1004-3365
CN: 50-1090/TN
Year: 2022
Issue: 02
Volume: 52
Page: 312-317
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0
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