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DAC81416EVM: Board or any solutions recommended for control board

Part Number: DAC81416EVM
Other Parts Discussed in Thread: DAC81416

In my project, I want to produce as many analog outputs as possible.

In detail, i'm trying to make the system that can read external code (ex. MATLAB) or saved code and produce analog voltage outputs to each pin according to the code.

ex. 

As time steps proceeds,

1 pin : 1V - 2V - 3V - 3V - 1V - ... 

2 pin : 2V - 1V - 3V - 1V - 2V - ... 

3 pin : 1V - 2V - 1V - 3V - 1V - ...

...

Each pin should be controlled independently, but with every pin time synchronized.  I need as many output pins as possible (at least 64, more the better)

From my colleagues, they suggested using many DACs together, but i wonder if those DACs can be controlled all together with time synchronization.

If there are appropriate solutions for this application, I would appreciated it if you could recommend it.

Thank you

  • Hello Kim, 

    DAC outputs could be connected synchronously with LDAC pin (page 23 of DAC81416 data sheet). Outputs of all channels would only be updated if a trigger even happens. This trigger even could be synchronized with all of the additional devices that you use to achieve right number of pins you require. DAC81416 would be a good choice for your application. Page 37 of device data sheet would help you with the correct register and values that need to be written to activate synch mode. 

    Let me know if you have any questions. 

    Thank you, 

    Illia Volkov