Easier Way to Build Spice Models from Old Data Sheets

Maness is looking for a way to build spice models from old data sheets, which usually requires creating spread sheet tables from curve traces. He asks if there is a program that allows tracing over images and generating data tables or power series. He also asks if there are any lab tools or software that can do this. A possible solution is Datathief, which can trace line graphs. In summary, Chris Maness is looking for a more efficient method for building spice models from old data sheets and is wondering if there is a program or lab tool that can trace lines over images and generate data tables or power series. Datathief may be a helpful solution for this task.
  • #1
kq6up
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I would like to find an easier way to build spice models from old data sheets. Normally one would have to tediously build spread sheet tables from curve traces of these old tubes. However, I was wondering if there is some sort of program that allows one to trace lines over the images, set extremis, and have a program either generate a data table from this line, or directly generate a power series that fits this curve. Is there any lab tools/software that can do something like this?

Thanks,
Chris Maness
 
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  • #3
Sweet thanks.

Chris
 

1. What is the purpose of building spice models from old data sheets?

The purpose of building spice models from old data sheets is to create accurate and reliable circuit simulations for electronic components. These models allow engineers to test and analyze the behavior of the components before physically building the circuit, saving time and resources.

2. What is the process for building spice models from old data sheets?

The process for building spice models from old data sheets involves extracting the necessary parameters and equations from the data sheet, and then using software like LTspice or PSpice to create the model. This may also include curve fitting and adjustments to ensure accuracy.

3. Are there any limitations to using old data sheets for building spice models?

Yes, there can be limitations when using old data sheets for building spice models. The data may not be as accurate or up-to-date compared to newer data sheets. Additionally, some parameters may be missing or incomplete, making it more challenging to create an accurate model.

4. How can I ensure the accuracy of my spice models built from old data sheets?

To ensure the accuracy of spice models built from old data sheets, it is essential to cross-reference the data with other sources and perform thorough testing and validation. It may also be helpful to consult with other engineers or utilize simulation tools to compare the results of the model with real-world measurements.

5. Can I use spice models from old data sheets for all types of electronic components?

While it is possible to build spice models from old data sheets for various electronic components, it may not be suitable for all types. Components with complex or nonlinear behavior may require more advanced modeling techniques, and old data sheets may not provide enough information for an accurate model. It is best to consult with a specialist or utilize more advanced software for these types of components.

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