I am looking for a PSPICE model of ADG5419. Is there a comparable part that can be used instead?
Unfortunately, the ADG5419 is not available SPICE model. You may try to use the ADG1236's SPICE model as a substitute and start from there.
Please note that the ADG1236 switch parameter values are not identical to that of the ADG5419.
Let me know if this helps.