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DAC8718: Power up sequence

Guru 11170 points
Part Number: DAC8718

Hello E2E,

Our customer is testing a new circuit board. The board is using DAC8718.
The output mode changes according to the power supply sequence.
· AVDD → REF-A / REF-B → AVSS → DVDD · IOVDD
⇒ Unipolar
· DVDD · IOVDD → AVDD → REF-A / REF-B → AVSS
⇒ Bipolar

Question;
- Does DAC8718 have regulation for power-up sequence?
- Please let us know how to set the output mode correctly?

Regards,
ACGUY