INA270

Ant Scranney

Other Parts Discussed in Thread: INA270, TLV2772

Hi,

I am looking to use the INA270 in a design and wanted to carry out some simulations, the IC seems fairly straight forward to use, but the simulations will help show the process of design for my course work.

I downloaded a large spice model zip from the TI website a few weeks ago and had some success simulating a TLV2772 opamp, as this had a sloj019.txt file which was the spice file I required, then simply changed the extension and it worked perfectly. But looking through the TI zip file I can find 3 entries for the INA270, but none of these appear to contain spice models. I am using Altium Designer but at this stage just browsing the files in a text editor and they don't appear to be a recognisable spice model format (to me that is). I also downloaded the Pspice files from the INA270 page and this has the same information. The flies I have found are as follows:

INA270.obj

INA270.OLB

INA270.LIB

INA270.DSN

INA270-PspiceFiles/ contains a DC.sim, DC.mrk and DC.prb

Can someone advise what I am missing, as suspect these are OrCad models?

Best regards,

Ant

over 9 years ago

0 Rabab Itarsiwala over 9 years ago

TI__Expert 4595 points

Hello Ant,

Let me look into this and get back to you.

0 Ant Scranney over 9 years ago in reply to Rabab Itarsiwala

Expert 1275 points

Hi Rabab,

Thanks for looking into this I now suspect these are for the Tina simulation, so it maybe possible to convert them? If not I can download and use Tina, but it would be nice to keep all my design work in one program as makes the prototyping process much easier.

Best regards,
Ant

0 Rabab Itarsiwala over 9 years ago in reply to Ant Scranney

TI__Expert 4595 points

Hi Anthony,
Can you try using INA270.LIB. It is a library file. You may be able to apply it directly, or just change the extension to .MOD, or whatever PSpice requires. Inside the model listing it makes reference to PSpice so it should be usable with the simulator.

0 Ant Scranney over 9 years ago in reply to Rabab Itarsiwala

Expert 1275 points

Hi Rahab,

Sorry for not getting back sooner, I opened this file in a text editor and can confirm this is the Pspice model. I just need to rename the file extension and it should be useable.

Thanks for your help :-)
Regards,
Ant

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