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Good Evening!
I was going through the data sheet for DAC81416, and I have a couple of questions on powering the device.
The document indicates that the minimum voltage supplied to the Vcc pin is 9V (which would correspond to the lowest output range of 0-5V, I assume).
For the Vss pin, negative voltage would have to be supplied to produce a bipolar signal, and the absolute difference between voltages supplied to the power pins would have to fall in the range of 9V < Vcc - Vss < 40V.
In this case, would it be acceptable to supply +5V to Vcc and -5V to Vss (for producing output in the -2.5V - 2.5V range), as it would produce a net difference of 10 V, or is it still absolutely necessary for the voltage supplied to Vcc to stay above 9V?
Thank you!
Hi Amina,
Welcome to E2E and thank you for your query. The VCC to GND voltage needs to be minimum 9V as recommended in the datasheet. This is independent of the output range. There is a possibility that the device might work at lower VCC values but that is not a guaranteed condition.
Hope that answers your question.
Regards,
Uttam Sahu
Applications Engineer, Precision DAC