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LM324 - Tina TI

Alex52381
Intellectual 810 points
Other Parts Discussed in Thread: LM324, TINA-TI

Hello,

I'd like to simulate the LM324 from TINA TI. I see that it only has a PSPICE file. Is it possible to convert this to work in TINA TI? If not, how could I get around this?

Thank you,

Alex

  • 0
    TI__Mastermind 40295 points

    Alex,

    I am a modeling engineer in the Analog eLab team.

    It is possible to import many of our Pspice netlists (*.lib) directly into TINA, and use the Pspice netlists to create dedicated TINA macromodels (*.TSM). A step-by-step procedure for importing a Pspice netlist is given in an applications note which is available on the TI web site and has also been uploaded to this page. The searchable document number is SLVA424.

    That being said, there are many older Pspice models that cannot be imported directly into TINA-TI, and I'm afraid the LM324 is one of them. I will convert the model and post it to this forum page later today or tomorrow.

    Please let me know if you have any questions or concerns.

    Regards,

    John Miller

    7144.slva424[1].pdf

  • 0
    TI__Mastermind 40295 points

    Alex,

    A TINA model for the LM324 and a TINA test circuit have been uploaded to this page.

    Please let me know if you have any more questions or concerns.

    Regards,

    John Miller

    5270.TI_LM324.TSM

    6735.LM324_TestCircuit.TSC

  • 0 in reply to John Miller - Sensing
    Prodigy 10 points

    John,

    Thank you for your contribution. Can I use this model for noise Analysis? or do I need another model?

    Regards,

    Juan Camilo

  • 0 in reply to Juan Castellanos
    TI__Mastermind 40295 points

    Juan,

    The device data sheet lists the input-referred noise as 35nV/rt(Hz) at 1kHz.

    A quick TINA noise sim using the model  results in about 24nV/rt(Hz) of input-referred noise if you use the circuit shown in Figure 2 of the device data sheet.

    So the model does seem to capture some noise performance, even though it is lower than what is quoted in the data sheet.

    The model and data sheet don't seem to capture 1/f noise: all the noise is flat until about 100kHz where it starts to fall off. 
    I don't know if this reflects noise performance of an actual device.

    Hope this helps.

    Regards,

    John