I want to use AD6655 EVB with a 130 MHz clock signal for sampling a 15MHz bandwidth signal centered around 400MHz. As I have read in the AD6655 datasheet (page nº30) several input configurations are recommended depending on the frequency input range. What input signal configuration is implemented in the evaluation board? Could it be used with the input signal I described above?
Thank you and kind regards
I would look into using one of our ADI Driver amps that can provide some additional gain while providing the output bandwidth required to maintain 400 MHz. I attached links to two candidates as well as an application note.Since the AD6655 does not have a buffer, the capacitive input of the SHA network makes it difficult to achieve sufficient BW such that loss at 400 MHz is less than 1 dB roll-off.