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AD8317 operation at 10GHz & impedance matching

Question asked by thuss on Dec 3, 2014
Latest reply on Dec 3, 2014 by bkamak



I am interested in using the AD8317 log amplifier at 10GHz.  The AD8317 is specified for operation up to 8GHz, but can be used up to 10GHz with a reduced dynamic range.


The datasheet (page 15) states that implementing an impedance match for frequencies beyond 8GHz can improve the sensitivity and measurement range.


The input impedance is only given up to 8GHz (page 4 of datasheet).  Can anyone provide me some advice on how to create matching network at 10GHz for AD8317?


Thanks for the help.