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AD5611 analog output

Category: Hardware
Product Number: ad5611

Hello All,

I am working with AD5611. I wrote a code to adjust output of AD5611. When I try to send 466 decimal to AD5611 the scope screen capture is as follows.

Yellow is SYNC bar, Blue is CLK, Purple is SDIN and Green is out of AD5611. Some how on 8th falling edge DAC updates its output. I could not understand that?

Top Replies

    • in reply to dclm +1 verified

      Hi,

      The new one has same response

      On the same or different board?

      The slow signal transition at the output of the optocoupler can also be a problem. The datasheet says: "All input signals…

    Parents Reply
    • Hi,

      The new one has same response

      On the same or different board?

      The slow signal transition at the output of the optocoupler can also be a problem. The datasheet says: "All input signals are specified with tr = tf = 1 ns/V (10% to 90% of VDD)", although no maximum rise/fall time is specified.

      Check if it works without the optocouplers.

      Zoltan

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