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ISO1450: ISO1450 power assumption

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Part Number: ISO1450

Dear team,

Customer will use 24 channel ISO1450 on their data acquisition board. They will add two 5V on each side for power supply, and the RT is 120Ohm. Customer want to know how about the assumption? What customer could do to decrease the assumption? The purpose of this question is because they have came across the assumption issue in their previous solution, it is not a TI solution, customer add 3.3V power supply and the assumption nearly 30mA.

Thanks.

Best regards,

Sammi