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AD7656 refer

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


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  i need you help, am i right?  if not ,could you give me a correct design?