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AD8362 Deviation error

Hello,

      We are using AD8362 ,just find for 10% chips the output voltage is 3db lower than real value. For further confirm, the deviation error is 3db under -45dbm input with 900M. From spec the value should under -1.7db. Do you have any idea what's the reason of this big error...

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  • Hi Verti,

    Are you saying the 10% affected population of parts have 3dB error below -45dBm, but no problem above -45dBm?

    Datasheet Figure 18 shows the log conformance error for up to 3*Sigma. Individual room temp calibration of slope and intercept is necessary across the linear portion of the response curve.

    -BruceH

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  • Hi Verti,

    Are you saying the 10% affected population of parts have 3dB error below -45dBm, but no problem above -45dBm?

    Datasheet Figure 18 shows the log conformance error for up to 3*Sigma. Individual room temp calibration of slope and intercept is necessary across the linear portion of the response curve.

    -BruceH

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