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[FAQ] How Do the TINA Models for Comparators Work?

Intellectual 2115 points

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TI is continuing to release new models for the latest comparators as well as refresh old models. Read to find out more as to what has changed with the models. 

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  • TI has been working to release new TINA models for our new comparators as well as refreshing old TINA models to improve convergence. Our new models will function in the same way, but we've added some features to help make it more intuitive for users. Be sure to check the Design and Development tab on the product page to see the latest model!

     

    If the user double clicks on the comparator symbol inside TINA and enters the macro, the specs that are modeled will be outlined in the header. The comparators will be modeled based on a chosen supply voltage (e.g. 12V or 5V), so double click on the model to see which supply is chosen. Any deviations to the generic specs outlined below will be mentioned in the header.

     

    1. Our latest updates will let users known when they are violating the specifications outlined in the datasheet. If the absolute max is violated for the supply and/or input pins or both input pins are outside the common mode range, then the output will float to mid supply. If only one input pin out of the two input pins is outside the common mode range or both input pins are inside the common mode range , then the output will reflect state of the input pins.

    2. Rise and fall time will be modeled as having the same value and the higher rise/fall time will be chosen as that value.

    3.When modeling propagation delay, the 100 mV overdrive value will be the default modeled value.

    4. Models will only cover the typical values at room temperature.

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