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

Sally Cheung95
Expert 5480 points

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. 

  • TI__Expert 5480 points

    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, all features and specifications that are modeled will be outlined in the model notes of the header. If there are multiple EC tables in the datasheet, the comparator 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. 

    1. Our latest updates will let users know when they are violating the specifications outlined in the datasheet. If the recommended operating conditions are violated for the supply voltage range and/or the input common mode voltage range, then the output will float to mid supply. If both input pins are inside the common mode range , then the output will reflect state of the input pins.

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

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

    *Note: For best results in transient analysis, be sure to change the max time step (Analysis > Set Analysis Parameters) to simulation runtime/1000 (eg, for 2s simulation, set to 2ms)