Use AD5683R to adjust the voltage reference of AD9744

Hi,

I want to build a precision arbitrary waveform generator using AD9744 and AD5683R, where AD5683R is used to adjust the reference voltage of AD9744.

1. I found that AD5683R is buffered DAC with internal precision 2.5V Vref, can the output of AD5683R connect to the VREF port of AD9744 directly without any opamp?

2. And is there any reference schematic for using AD5683R together with High speed DACs ?

Thanks!

PS, VOUT is connect to the Vref port of AD9744 directly.

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