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combining DAC outputs


JamesJennings
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Would it be safe for the acc59e to combine multiple unipolar DAC outputs together in parallel so as to avoid the expence/ complexity of a switching matrix?

The idea is that normally only one dac channel at a time would be commanded with the others set to zero. I don't want the combined output added just the value of the highest Dac output at any given moment.

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I would not recommend joining DAC outputs together. You'll end up with multiple output stages fighting to regulate to a single voltage (usually results in smoke), which you seem to recognize with your comment about a 'switching matrix'.

Is there a reason you can't select the highest value in software and write that to a single DAC?

Sounds like you aren't concerned about which output gets used at any given time, so putting the 'switching matrix' on the software side might be suitable?

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