ads5474-sp ibis model

Hi Steve,

Please use the IBIS model for the ADS5463 which appears on the product page of the ADS5474.

As described by apps engineer supporting these devices:

"The ADS5474 and ADS5463 are essentially the same device for purposes of the ibis model.   The ADS5474 has an extra two LVDS outputs which may not be listed in the pin list.   The main differences between the ADS5463 and ADS5474 are that the analog input circuit is tweaked between them to optimize for their respective sampling rates, but the analog inputs are not ibis-modeled.  So not an issue.  Also, one of the devices has a VCM pin and the other doesn’t – but again not part of an ibis model which is meant for the digital IO."

Regards,

Christian

Thanks.

To be sure, as this is targeted toward space application, the IBIS model for the plastic HTQFP package (ADS5463) is applicable for the ADS5474-SP in the ceramic CFP package. Please verify & advise of any limitations or cautions in using the same model for the different packages (if any).

Steve

Steve, the parasitics for the ceramic package will be larger they will play a role in the signal integrity results.
We have recently improved the ability to extract parasitics from our ceramic packages for ibis modeling. I have requested that the ADS5474 package get extracted. This will take some time. Possibly up to 1 month.
However, the models for the plastic package can be used in the mean time.
Regards,
Wade

Wade -

Have we updated the IBIS model to account for the ceramic package yet? Please advise

It appears this has fallen into a crack. I am following up, and hopefully can get an estimate of completion shortly.
Regards,
Wade