When reviewing the ADA4505 datasheet there are many different noise specifications (peak-to-peak voltage noise, voltage noise density), what is the best way to review /simulate these in LTspice?
When reviewing the ADA4505 datasheet there are many different noise specifications (peak-to-peak voltage noise, voltage noise density), what is the best way to review /simulate these in LTspice?
From a datasheet, you can usually get information about different types of noise, the terminology spectral noise density, RMS noise or peak to peak noise can usually be found.
Lets use the following schematic to work through this in ltspice.
Run a '.noise' simulation using the following command .noise V(VOUT) V1 dec 100 1 1MEG
The datasheet for the ADA4505 provides the following information:
To capture the 'voltage noise density' from ltspice
To capture the 'p-p voltage noise' you first need to capture the 'RMS noise'
For more details on different types of noise, read the article https://www.analog.com/en/analog-dialogue/articles/step-by-step-noise-analysis-guide-for-your-signal-chain.html, or check out these videos Calculating Spectral Noise Density to RMS Noise - YouTube & Calculating RMS Noise to Peak-to-Peak Noise - YouTube
When should noise simulations be carried out?
If you want to learn more or get some additional insights why not check this video out LTspice IV: Noise Simulations - YouTube
From a datasheet, you can usually get information about different types of noise, the terminology spectral noise density, RMS noise or peak to peak noise can usually be found.
Lets use the following schematic to work through this in ltspice.
Run a '.noise' simulation using the following command .noise V(VOUT) V1 dec 100 1 1MEG
The datasheet for the ADA4505 provides the following information:
To capture the 'voltage noise density' from ltspice
To capture the 'p-p voltage noise' you first need to capture the 'RMS noise'
For more details on different types of noise, read the article https://www.analog.com/en/analog-dialogue/articles/step-by-step-noise-analysis-guide-for-your-signal-chain.html, or check out these videos Calculating Spectral Noise Density to RMS Noise - YouTube & Calculating RMS Noise to Peak-to-Peak Noise - YouTube
When should noise simulations be carried out?
If you want to learn more or get some additional insights why not check this video out LTspice IV: Noise Simulations - YouTube