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TINA/Spice/OPA695: NF estimation

Part Number: OPA695

Tool/software: TINA-TI or Spice Models

Hello,

I have schematic as follows: OpAmp_NF_estimation.TSC

Is it correct way to estimate NF of the diff-to-single Op-Amp circuit?

Thank you!

tsa

  • Tsa,
    I will move your post to the High Speed Amplifier Forum.
    The product experts that monitor that forum would be better able to help with your question.
    Regards,
    John
  • Hi Tsa,

    Taking the difference between the input SNR and the output SNR is one way of estimating Noise Figure of the Diff-to-single op-amp circuit. 

    Best Regards,

    Rohit

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