AD5940 High Speed Loop

Question

1) Is it possible to switch the excitation DAC to D5 and D6 at different times to generate two counter electrodes one on CE0 and one on AFE1? 
 2) Can you share an example code with us to see how the switching between these two main loops should be?

RadioSon · Accepted Answer

Dear Akila, 
 Thank you for your response to our inquiry. 
 We tried your code. I am afraid it did not work for us. Here is our follow up questions: 
 1) Why did you connect the P switch to CE0 on your line 8? 
 2) We want to have a separate reference electrode than the counter electrode. How do we set up the P switches to have access to a separate reference electrode? 
 3) Is there a more comprehensive schematic about the DAC for the high speed loop that you can share? There are inputs from the function generator to the DAC. At the same time, there are inputs from N and P switches to the DAC. We want to have a better understanding of what the relationship is between the inputs of the DAC and N and P switches. 
 4) What is the purpose of N switch that connects the input of the DAC to the input of the TIA? 
 5) Just to reiterate, we want to have a separate Counter and reference electrodes. Can you advise how the N and P switches need to be set up? 
 Thank you very much. 
 Payam)

SLA Status	Assignee	Support Status
SLA Closed. Met after 14 hours	DanB mark.ramos Akila RGrau mkhairy	Awaiting Customer Response

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AD5940 High Speed Loop

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