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OPA857: Input Current/Voltage Noise Density

Part Number: OPA857

Hi,

A TIA circuit was designed using OPA857, and Input Voltage Noise Density and Input Current Noise Density values are required for noise analysis.
What are the Input Voltage Noise Density and Input Current Noise Density values of OPA857?

Thanks,

MS

  • Hi MS,

    The input-referred current noise density graphs are shown in Section 6.6 of the datasheet as Figures 26 and 27.

    This E2E (link) walks through what the input referred voltage noise is and how to convert that value for any frequency.

    Please let me know if you have any further questions.

    Thanks,

    Nick