Noise analysis of correlated double sampling SC integrators with a hold capacitor
Noise analysis of correlated double sampling SC integrators with a hold capacitor
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具有保持电容器的相关双采样 SC 积分器的噪声分析
DOI：
10.1109/tcsi.2003.816314
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发表时间：
2003
影响因子：
5.1
通讯作者：
O. Oliaei
中科院分区：
文献类型：
--
作者：
O. Oliaei
分析了带辅助保持电容的相关双采样开关电容积分器的噪声性能。这些类型的积分器依赖于一个额外的电容来衰减放大器的低频噪声。积分器的输入参考噪声的近似表达式。结果表明，在放大器输入端的大寄生电容可能会严重降低这种结构的低频噪声性能。
Noise performance of the correlated double sampling switched-capacitor integrators incorporating a supplementary hold capacitor is analyzed. These types of integrators rely on an extra capacitor to attenuate the amplifier low-frequency noise. Approximate expressions for the input-referred noise of the integrators are derived. It is shown that a large parasitic capacitance at the amplifier input may seriously degrade the low-frequency noise performance of such structures.