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DAC81416: DAC81416 Vcc positive power minimum requirements

Part Number: DAC81416


I want to use this DAC in my new design. I have already on board two analog power rails: +7V and -4.5 V. In the data sheet minimum recommended Vcc voltage is +9V. But,  I don't want to introduce new positive rail +9 V. Could I connect DAC's Vcc power to +7 V rail and negative Vss pin to -4.5V rail?

From DAC I need output voltage +-2.5V with current no more then +-1 mA per output.

Thank you in advance.