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Question about commnads

Category: Datasheet/Specs
Product Number: AD5686

Dear  Forum

Im using the AD5686 as wavefor generator. I need some confirm about commands use.

I would like:  - Load all 4 ch with 4 different data

                     -Assert the LDAC low ,so, all out are generated at same moment.

If I undersood good, i need to:

1) Senda data   with command 0001,and address DAC A. This will fill the shift reg A

2) Same for other   just change the data and address.This will fill the shift register ..address..

3)Now, Setting LDAC Low, for minimimum 15ns ;  will   transfer data from Shift Reg x to Data Reg x (the out) at same time.

4)The distance beetwen 2 SPI transfer is circa 870ns; this means i can fill DAC B after >circa 870ns +15ns I filled DAC A.

Is this correct ?

Thanks for your time.


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Top Replies

  • Hi  ,

    We are currently checking this query and will get back to you soon.

    Best Regards,


  • Hi  ,

    Your understanding of the process is mostly correct. The time it takes to transfer data is all about how the DAC is designed and the tech used to make it. If you want to speed up the data transfer…