Thermal noise in track-and-hold circuits analysis and simulation techniques

et2234 · 发表于 2014-6-24 22:57:29

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As a vehicle that lets us explore the main ideas of this article, we will utilize the commonly used charge-redistribution track-and-hold amplifier (THA) circuit (shown in Figure 1) and evaluate this circuit in terms of its thermal noise performance. Of course, it is well know that the thermal noise of this circuit is somehow related to “kT/C.” What we accomplish in this article is to precisely track down the proper proportionally constants so that we can validate the results of a circuit simulation with good precision. After all, as you have learned from your experienced analog guru, you will never trust a circuit simulation blindly, right?

Published in:Solid-State Circuits Magazine, IEEE (Volume:4 , Issue: 2)

waveguides · 发表于 2014-6-25 05:35:12

murmann很不错，不是那种只折腾simulation的

gaojun927 · 发表于 2014-6-25 09:09:47

sc noise的分析论文，我看到的最早的是80年代前后，其实已经讲的很准确了。05年Schreier他们的文章等于把这个方向又重新描述了一下，重点在于让designer更善于理解。其实这个东西理论已经没有太多新的内容（computer的pnoise分析和人手工计算已经走上了两条不同的道路），但关键就在于这个理论。噪声理论对大多数人来说远难于普通的电路分析，如果再是一个离散与连续混合的系统，更需要仔细区分两者的边界，我猜绝大多数人就会只记结论了。