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AD8479 Recommended for New Designs
The AD8479 is a difference amplifier with a very high input common-mode voltage range. The AD8479 is a precision device that allows the user to accurately...
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AD8479 simulation model

LucaFosforo

on Sep 5, 2024

Category: Software

Product Number: AD8479

Software Version: Altium Designer 23.6.0 SPICE simulation

Hi,

I'm having troubles using the simulation model of the AD8479 (the one updated to 6/2020), when I try to simulate even a basic circuit the tool gives me the following error:

The circuit I tried simulating is the following (even if it says INA149 I loaded the AD8479.cir):

Does anyone know what's wrong?

Thanks!

Added note on the image remarking I'm using the AD8479 model (and not the INA149)
[edited by: LucaFosforo at 3:38 PM (GMT -4) on 5 Sep 2024]

Thread Notes

Tags: simulation cir software ad8479 Altium Designer 23.6.0 SPICE simulation Specialty Amplifiers Difference Amplifiers ro31 Show More

0 GLADION

on Sep 10, 2024 9:11 PM
Hi,

Good day. Have you encountered other error log? I think the model is not properly imported into the simulator. Thank you.

Regards,
Gilbeys
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0 LucaFosforo
on Sep 11, 2024 4:41 AM in reply to GLADION
The error log I showed is the only one I've encountered.

Regarding the import of the model into the simulator I did it as follows:

I did it pin-by-pin and for other ADI models in ".cir" extension I had no troubles.

Thank you.

Regards,

Luca Fosforo
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0 GLADION

on Sep 18, 2024 2:10 AM in reply to LucaFosforo
Hi LucaFosforo ,

Good day. It seems that one of the components in the .cir file of AD8479 is not compatible with Altium. I tried running the same setup on LTSpice and it works fine. I would recommend LTSpice to simulate your circuit. Are there any particular function on Altium that you'll be using? Thank you.

Regards,
Gilbeys
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