• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 48 subscribers
  • Views 233 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

OPA2197: Common Mode Distortion in Spice model

TonyMCC
Intellectual 750 points
Part Number: OPA2197

Does the OPA2197 spice model include the ability to simulate common mode distortion performance ?

Thanks.

  • 0
    TI__Guru* 93105 points

    Hi TonyMCC,

    I believe you are referring to the distortion that may occur when a changing common-mode input voltage causes the input common-mode capacitance to change. When I check the OPA2197 modeled parameters which are listed in the model syntax and it does not list common-mode distortion, or any distortion characteristics. Spice based simulation models in general do not model distortion characteristics because it is extremely difficult to replicate the same distortion results from a simplified transistor, or behavioral op amp model, as one might obtain from a real op amp operating under a specific operating condition. 

    Regards, Thomas

    Precision Amplifiers Applications Engineering

  • 0 in reply to Thomas Kuehl
    Intellectual 750 points

    Thanks for the reply Thomas.