Hello, I loaded the ADG1412.cir model into LTSpice and created the attached test circuit. With a voltage input of 10 volts at pin2, I expect to see 10 volts at pin three when I enable S1 though pin 1. I only see 4 volts at the output on pin 3.
Yes, the ADG1411 and ADG1412 spice models have the same issue. You may change the values as I have done in the ADG1412 model and start from there.
Thank you for spotting this. I have looked and tried some simulations regarding your concern. According to my evaluation, LT Spice does not distinguish properly the lines highlighted below.
It might be that this complicates the simulation process of LT Spice. And in order to solve this issue, the value 1/1000 must be changed to 0.999/1000. Please see updated ADG1412 spice model in the attached file.
I have raised a request to the update the ADG1412.CIR spice model in the web. This will be ready within a few days. I'll let you know once the updated model has been reflected in the web.
Hope this helps. Let me know if there are other concerns.
Thank you for the prompt response May, my simulation circuit works as expected now.
Thanks for the quick response. Sim model works correctly now.
Glad to have helped you. Let me know if there are other concerns.
Hi May, will the ADG1411 and 1413 models have the same issue? If yes, can they be modified also? Thanks
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