The datasheet of the AD9364 specifies -18dBm IP3 at maximum gain.
How does the IP3 change at lower gain?
What external LNA/schematic is recommended to improve the IP3?
IP3 will depend on how the measurement is performed. It depends on where the blockers are placed like shown in the plot (in-band or out-of-band).
You can use this as a guideline, but to get accurate numbers for your application I would suggest measuring IP3 using our evaluation platform.
If there is the need for a higher IP3, our list of RF/IF/LNA might help.
Note: the higher the linearity, the higher the power dissipation. Higher linearity = higher IP3.
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