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ISO7331C: Review of circuit

Sahil Berde
Intellectual 730 points
Part Number: ISO7331C
Other Parts Discussed in Thread: ISO7731,

Hi,

Can you please review the below circuit?

  • 0
    TI__Guru 52080 points

    Hi Sahol,

    Thanks for sharing the schematic for review. The schematic looks good, please see below a couple suggestions.

    1. Please make sure the 0.1µF decaps are placed close to device VCC/GND pins in the PCB layout, preferably within 2mm of distance on the same layer as device.
    2. ISO7331c is an older digital isolator family, I would recommend using ISO7731 instead. ISO7731 is one of our latest family of digital isolators that offer significantly higher performance and still competitively priced. ISO7331C is only available in DW package while ISO7731 is available in both DW and a smaller DBQ package.

    Regards,
    Koteshwar Rao