AnsweredAssumed Answered

AD9858 DAC IOUT circuit design

Question asked by bill1989914 on Mar 31, 2017
Latest reply on Apr 4, 2017 by bill1989914

Hi  

I am using AD9858  DDS chip.  I feel confused about the   2 pins  of IOUT , and also the 2 pins of ~IOUT(complementary).

 

Are the 2 pins  IOUT are internal connected or I should connected them extenally. Or , they do not need to be connected. 

 

I also do not know how to design the DAC output circuit.   The DAC output compliance range is (AVDD − 1.5 V) to (AVDD + 0.5 V). So I can I convert the current output to voltage output?     The outputs are differential open collector, so how to design it?ad9858

 ad9858_schematic

ad9858 ad9858_startupAD9858 - Still need help on my schematicadminanalog-adminstevebkaushalJohannesH

Thank you 

Outcomes