RF diode is recommended to keep the forward voltage of the system above 500mV.In this case, we are referring to the capacitance which is 1pF.A valid conversion result requires a reverse test voltage within 1V.There is a current rating of 1A for this part.
HSMS-2827-TR2G Features
1pF capacitance
HSMS-2827-TR2G Applications
There are a lot of Broadcom Limited HSMS-2827-TR2G applications of RF diodes.