"Op Amp Noise Modeling"

Op Amp Noise Modeling

Datasheet with Asymptotes added For Noise Modeling
Figure: OpAmpNoiseAnalysis.svg
Datasheet with Asymptotes added For Noise Modeling

From the Asymptotes of the Voltage noise plots the Noise Floor is:

\begin{equation} S_{v}=0.95\,\left[ \mathrm{\frac{nV}{\sqrt{Hz}}}\right] \end{equation}

From the Asymptotes of the Voltage noise plots the Corner Frequency is:

\begin{equation} S_{v}=4500.0\,\left[ \mathrm{Hz}\right] \end{equation}

The Spectral Noise Density of the current is not so clear, so instead I choose to call the asymptote where there is a large change in the frequency characteristics.

From the Asymptotes of the Current noise plots the Noise Floor is:

\begin{equation} S_{i}=2.5\,\left[ \mathrm{\frac{pA}{\sqrt{Hz}}}\right] \end{equation}

From the Asymptotes of the Current noise plots the Corner Frequency is:

\begin{equation} S_{i}=1.01 \cdot 10^{4}\,\left[ \mathrm{Hz}\right] \end{equation}

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Last project update: 2022-11-20 18:08:04