LTSpiceIV beginner. Opamp model question.

[hazuki]

Hi all. A quick question. I want to simulate an LT1494 opamp for a circuit I'm designing. Basically it's just a differential amplifier used in a rail to rail application. My question is: to what length does the simulation model go to match the performance of an actual device? You can see in my schematic (attached) that I have a +12v supply powering the opamp, but the opamp input goes up to 24V. According to the simulation, there isn't an issue but there would be in real life.

Also if anyone has any good recommendations on learning LTSpice, I'd appreciate it!

Thank you.

[Bored@Work]

Good SPICE models match the real behavior of a component with regards to certain aspects within the component's safe operating conditions (maximum specifications). Outside the maximum specifications, or for others than the modeled aspects you get rubbish.

Bad SPICE models always produce rubbish.

Good SPICE models in a bad-for-SPICE circuit can also produce rubbish.

Also if anyone has any good recommendations on learning LTSpice, I'd appreciate it!

Don't learn SPICE. Learn the trade, starting from the basics like Ohm's law onwards. SPICE requires to have more than a clue what you are doing. If you don't happen to have a clue you can't detect if SPICE is producing rubbish.