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Drive DAC out with AMP and maintian high SFDR

Question asked by hoo on Mar 8, 2017
Latest reply on Mar 23, 2017 by JinoL


Output frequency is DC-200MHz, output voltage is 3Vpp at 50 Ohm load and spur below 60dBc !

I need a high performance amp with high voltage supply,it seem to be an impossible task: the requirement HD2/HD3 < -60dBc up to 200MHz is quite high, any suggestion about AMP selection?

I have little experience of op amp Design,and i was told that a single amp can't do this,i should have multiple amp cascaded in pararrel??

best regards!