INA159: pspice simulation not converging in the model provided by TI.

Hello Yatin,

I wanted to make sure that our INA159 simulation model runs by itself with a PSpice compatible simulator. I don't have Orcad, but I do have Penzar TopSpice, which is syntax compliant with Orcad. I set up an INA159 test circuit and ran it with TopSpice and it ran without any convergence issues. You can see the result below.

I suggest you set up the INA159 circuit by itself in Orcad and make sure that it runs okay alone. Then add the other components shown into your schematic, piece by piece. You may discover a different issue is resulting in the convergence problem.

Regards, Thomas

Precision Amplifiers Applications Engineering

I could figure out the issue. It was small mistake in circuit. 

Thanks for help !