Is there any library with new components for download and put into multisim? I need ISO124 and I don't know how to make it...

[leocechet]

People, I am not experient on Multisim and I'd need help to make one component. First, is there any library or something for me to download components that are necessary and are not there? If there isn't, can someone help me to find ISO 124 (isolation amplifier) for simulation and PCI??

Thank You!

[_user32]

Leocechet,

The ISO 124 from Burr Brown (now part of TI) is one of my favorite ICs (although noisy)... I would check on the TI website and if no luck do a general google search to see if there is anything similar out there for SPICE models.

If I remember correctly the ISO124 uses a proprietary capacitive isolation barrier (mod/demod across barrier). The signal chain and performance of the ISO 124 may be difficult to mimic with a standard opamp model, but you can try as a start.

If creating my own I would use a standard opamp model and then use a voltage controlled source to model the isolation barrier (again it wouldn't be that sophisticated but you could possibly add to it).

Hopefully that will get you started. If you find a model and need help in importing it let us know.

Regards,
Pat N

[leocechet]

Thank you, but I still need help, because I don't have this component on Multisim. I would like to know how I can create this kind of component. If there is how. Or if there is a bank of components to download.

thank u!