TINA-TI Free Simulator Tool Make Amplifier Sims Easy

TI offers a free analog simulator on ti.com called TINA-TI and while there are definitely other tools out there that may be bigger - this one is fast and packs a punch. I found a great intro to the program (attached below) and spent  some time with TINA-TI today. So far, here is what I liked/disliked about it...


1. Easy to navigate for the first time user - drag and drop interface, intuitive windows type format made getting started with the tool very easy - straightforward analysis prompts 

2. Downloadable starter circuits- Many of the newer amplifier datasheets have downloadable circuits (way cool feature - check out the INA333) and all models have a test circuit that you can click on and start simulating with right out of the box, meaning you don't need to spend too much time building a design before you can start to play with the tools functionality. (If you check out the INA333 datasheet there is a LOG circuit that you can download on page 16!)

Sample of Easy Starter Circuit for the OPA569 - AC, DC and Transient Response

3. Lots of models and the library keeps growing - I asked one of the apps managers how many of the TI amplifiers have models - he said over 300 and the library grows daily. You can find the macros easily with the tabs on the top of the TINA window.

4. Easy to Enter and Read Macro Summary- Duh, right? Well - ever complete a noise analysis only to find out that noise wasn't included in the macro-model? Doh. Click, read and move on if this doesn't model what you want.

Entering the Macromodel Summary (lots of good stuff modeled including input voltage noise...

5. Nifty Little Helpful Tools  - check out the control object function - it doesn't move mountains, but it makes it easy to see three cap value results at once

Control Object makes it easy to do multiple variables at one time

6.Easy to Compare Outputs - try this: run two AC simulations and combine the results onto one output page (yes, they copy and paste). Told you that was easy.

Conventient Labeling and Comparison in Outputs makes info sharing easy

7. The E2E Forum uses TINA-TI all the time - everyone can speak language of design and simulation quickly, meaning faster solutions and better support - check out this example on ECG...

8. FAVORITE THING: FAST FAST FAST convergence engine

Still could be better...

  1. Okay, I said we have lots of models but of course more models and more design examples would be better - something to continue working on...
  2. More design examples
  3. Flexibility between sim programs - not all schematics function across simulators
  4. Still some boolean models - would be nice to see these phased out, some of the older models are not as accurate as the more recent ones.
  5. No pin numbers on the models - not that this is a deal breaker but it would make it easier for actual schematic and layout

I am sure there are more things to like and dislike but so far that is what I have got. I did find this awesome TINA-TI intro from a TI Tech Day presentation put together by Senior Apps Engineer Thomas Kuehl (pronounced KEEL, but I am beginning to think it should be COOL)...this presentation covers just about EVERYTHING from how to set up an AC, DC, and Transient analysis to noise analysis and some of the much more advanced features in TINA-TI. If you can't catch it in person you can download it below. Perhaps after I work through the examples I will have to make an addendum to this post.  Nothing like a FAST tutorial for a FAST engine - enjoy!

And, if you're interested in learning more about TINA-TI's features and benefits, check out my colleague's latest blog post.

Tina_TI 2009.pdf

  • This seems to be interesting.

    Though I haven't tried it yet (comfortable with spice :)), I was wondering if this can provide the overdrive voltages, gate and drain capacitances and such other details.

    One more question, is it compatible with different models that we might want to use from another vendor?



  • I am using TINA right now.  I have breadboarded a circuit (two stages of OPA4820) that is too noisy to use.  I also did some TINA noise analysis.  I don't think the two are in the same ballpark.  Is there a way i can look at the amplitude of the actual output and relate it to some TINA noise analysis.  I'm thinking I have something wrong with my breadboard.



  • Hi Vikas,

    Overdrive voltages, gate and drive capacitances etc are provided for standalone MOSFETs. For other devices, the information is at a macro level so that level of detail is not provided.

    Other sources of spice models may work but it must be human readable and cannot encrypted. TINA does however handle TINA encyrpted,

    Hi Peter,

    Noise analysis is device/model dependent - if it was noise optimized then the information would be accurate. Our modelling team is checking on the OPA4820 - I'll get back to you.



  • hi, i also used TINA. but i cant simulate my required model. for example i need 110volt dc supply. but tina cant do it. also i cant simulate P-type mosfet . can u guide me how can i do it?

  • Ramanathan, I'm not sure why you can't get a 110VDC source - I tried it a couple different ways and it worked for me. There are some PMOS models in TINA-TI which simulate fine as well. If you want to post more details about what you're trying to do, even the TINA schematic if possible, in the Simulation forum (www.ti.com/e2e-simulation), we could look into this further for you.

    Also, you all might be interested to learn that we just updated TINA-TI to version 9.1 - this brings speed improvements and allows for you to import models from any vendor in PSPICE formats. Check it out at www.ti.com/tina-ti.

  • I am attempting to import a spice macro into Tina-TI Version SF-TI, it gives me the following error

    Undefined model: C.(C:\program Files\DesignSoft\Tina 9 - TI\EXAMPLES\SPICE\TSPICE.LIB)

    I did the compile test as shown in the TINA-TI documentation before creating the part and the model passed.

    The model is the BF908 dual gate mosfet from NXP.  The model is available from the following link


    Any assistance would be appreciated.