AnsweredAssumed Answered

AD5764 Eval board voltage spike

Question asked by zufours on Mar 31, 2016
Latest reply on Apr 19, 2016 by msamera

Hello, I am currently using a AD5764 eval board controlled through J21 with an Arduino Uno. Whenever I send a new 24 bit word to the AD5764, the output voltage drops to -10V before changing to whatever voltage it is supossed to go to. I was wondering what I could possibly do to prevent this -10V spike. Currently I am not using LDAC, it is tied to low while the SDIN is transmitting data, would implementing LDAC remedy the situation. For the SPI communication I am simply using the built in Arduino SPI infrastructure and using SPI.transfer() to send the data.


- Thank you