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AD7656 refer

Question asked by chang on Mar 15, 2018
Latest reply on Mar 20, 2018 by chang

hi,all!

in my design ,i use one piece ad7656,it works in spi mode, i chose external reference(connect pin refin to 2.5V),and enable  internal refbuf (connect pin refbuf to gnd),but now i can not get busy signal from ad7656, it always low.so  i need you help, am i right?  if not ,could you give me a correct design?

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