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TINA/Spice: Differences between a Transient and an Average Model

na yan

Prodigy 20 points

Other Parts Discussed in Thread: TINA-TI

Tool/software: TINA-TI or Spice Models

My understanding is the average model is only suitable for analysing the low-frequency characteristic , isn't it ?
My question is wheather the transient model can be used for analysing the high-frequency characteristic.

over 6 years ago

0 Saket over 6 years ago

TI__Intellectual 2680 points

Hi,

As per my understanding, an average model should able to characterize device till its Unity Gain Bandwidth frequency.

If you are interested in very High frequency (Noise analysis) which is beyond UGB frequency then average model might not give desired results.

For transient and average model differences you can go through below thread.

[FAQ] TINA/Spice: Differences between a Transient and an Average Model - Simulation, hardware & system...

e2e.ti.com

Other Parts Discussed in Thread: TINA-TI Tool/software: TINA-TI or Spice Models I would like to know the differences between a Transient Model and an Average

Thanks & Regards,

Saket

0 Nikhil Gupta (Product Folder Models) over 6 years ago

TI__Mastermind 39210 points

Na,

If you are looking to analyze effects like EMI which need to capture high frequency switch node ringing, then the regular behavioral transient models may not be sufficient for this (these are useful for general behavior of the device and simulating time doing effects).

EMI (and those requiring the capturing of high frequency effects) need more accurate models that capture these high frequency effects at the expense of simulation time.