This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DAC82002: Crosstalk noise from SDIN to VOUTB

Part Number: DAC82002
Other Parts Discussed in Thread: OPA2328

Tool/software:

Hi all,

I observed a phenomenon in which noise that appears to be SDIN crosstalk was output in the waveform from VOUTB of the DAC82002.

There was no particular noise on VOUTA.
VOUTB is output through the OPA2328 buffer.

Are there any other factors that could be causing this besides crosstalk?

The wiring layout is based on the layout example described in the data sheet and EVM, and there are places where the VOUTB and SDIN wiring are parallel.
I think that the crosstalk would disappear if the wiring was not parallel. Is there anything else I should be careful of with the layout?
It would be helpful if you could recommend a layout pattern.

CH1: Buffer output from VOUTB
CH2: SDIN signal


Regards,
Toshi