Channel voltage changes with programming another channel

Hi ramunist ,

The issue seems to be that updating one channel affects other channels due to some interaction. This could be due to reference or power supply noise. Recommend checking reference/power supply decoupling and ensuring channels are updated sequentially not simultaneously. With that:

1. What is the intended application and how are you interfacing with the AD5391?

2. Are you updating one channel at a time or multiple channels simultaneously, how so?

3. What do the reference and power supply connections look like?

Best Regards,

Den

Hi ramunist ,

The issue seems to be that updating one channel affects other channels due to some interaction. This could be due to reference or power supply noise. Recommend checking reference/power supply decoupling and ensuring channels are updated sequentially not simultaneously. With that:

1. What is the intended application and how are you interfacing with the AD5391?

2. Are you updating one channel at a time or multiple channels simultaneously, how so?

3. What do the reference and power supply connections look like?

Best Regards,

Den