AnsweredAssumed Answered

Sample rates and setting time of AD9747?

Question asked by Newpp on Feb 3, 2017
Latest reply on Feb 3, 2017 by larrywelchusa

I am looking for a High Speed DAC. I want the DAC updates output at 30-40Mhz level. the output setting time has to be 30-50ns. 


Q1: What is the relationship between sample rate and output setting time of high speed DAC? Is it normally in reverse relation, that is setting time = 1 / sample rate???


I want to use AD9747, the sample rate of this chip is up 250MSPS.

Q2: Is it fast enough to generate setting time what I need? Cause I can't find the setting time in datasheet. 

Q3: I need a voltage from the DAC. The output of this DAC is a differential current. How can I convert this current to voltage?


Sorry, I am new to current mode DAC and high speed DAC.

Looking forward to your answers!