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首页> 外文期刊>IEEE Journal of Solid-State Circuits >A 3-V 340-mW 14-b 75-Msample/s CMOS ADC with 85-dB SFDR at Nyquistinput
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A 3-V 340-mW 14-b 75-Msample/s CMOS ADC with 85-dB SFDR at Nyquistinput

机译:在Nyquist输入处具有85dB SFDR的3V 340mW 14b 75msample / s CMOS ADC

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This paper describes the design of a 14-b 75-Msample/s pipelinenanalog-to-digital converter (ADC) implemented in a 0.35-Μmndouble-poly triple-metal CMOS process. The ADC uses a 4-b first stage tonrelax capacitor-matching requirements, buffered bootstrapping to reducensignal-dependent charge injection, and a flip-around track-and-holdnamplifier with wide common-mode compliance to reduce noise and powernconsumption. It achieves 14-b accuracy without calibration or dithering.nTypical differential nonlinearity is 0.6 LSB, and integral nonlinearitynis 2 LSB. The ADC also achieves 73-dB signal-to-noise ratio, and 85-dBnspurious-free dynamic range over the first Nyquist band. Then7.8-mm2 ADC operates with a 2.7- to 3.6-V supply, andndissipates 340 mW at 3 V
机译:本文介绍了在0.35μm双双三金属CMOS工艺中实现的14-b 75-Msample / s流水线模拟至数字转换器(ADC)的设计。该ADC使用4位b阶tonrelax电容器匹配要求,缓冲自举以减少依赖于信号的电荷注入,以及具有宽共模一致性的翻转式跟踪和保持放大器以降低噪声和功耗。它无需校准或抖动即可达到14b精度。n典型的差分非线性为0.6 LSB,积分非线性为2 LSB。在第一个奈奎斯特频带上,该ADC还实现了73 dB的信噪比和85 dBn的无杂散动态范围。然后,7.8mm2 ADC在2.7V至3.6V电源下工作,在3V电压下的功耗为340mW

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