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DAC8571: Output error

Part Number: DAC8571

Hi All,

I asked a similar question before, but I haven't solved it yet.
Please support me again.

Oscillation of the output was confirmed when the following data was written using the DAC8571.

After sending 0010 data, I sent 5000 data and confirmed the transient response of the output.
A waveform oscillating under the above conditions was observed.

Why does this happen? The output is no load.

In addition, the following does not oscillate, but overshoot occurs under the same conditions for all samples.
What is this overshoot?

If necessary, I will send you the schematic, so please give me a private message.

Best Regards,