A 90-dB-SNDR Calibration-Free Fully Passive Noise-Shaping SAR ADC With 4× Passive Gain and Second-Order DAC Mismatch Error Shaping
IEEE Journal of Solid-State Circuits(2021)
摘要
Noise-shaping (NS) successive approximation register (SAR) analog-to-digital converters (ADCs) using passive loop filters have drawn the increasing attentions owing to their simplicity, low power, zero static current, and PVT robustness. However, prior works show the limited resolution because of two main challenges: the thermal noise and the digital-to-analog converter (DAC) mismatch. This articl...
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关键词
Capacitors,Robustness,Calibration,Signal resolution,Prototypes,Noise reduction,Energy resolution
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