How should the analog output interface be handled for ADI's HS-DACs?
At lower frequencies, an op amp can be used to acheive differential-single ended conversion along with some gain if needed. For example, one recommended configuration for the AD9740 is shown below. Suggested op-amps for the interface are AD8055, AD8057, and for high-speed applications the ADA4857.
At higher frequencies, the use of op-amps becomes difficult and one must resort to baluns and transformers. Shown below are two possible configurations using baluns/transformers.
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