I have problem simulating this circuit in Multisim:


enter image description here

Here is scheme from Multisim:

enter image description here

When I run transient analysis, I got this:

------ Checking SPICE netlist for Design3 - Saturday, September 26, 2015, 10:58:03 AM ------ ======= SPICE Netlist check completed, 0 error(s), 0 warning(s) ======= Transient time point calculation did not converge Simulation canceled

Any idea what's wrong? Thanks in advance

  • \$\begingroup\$ LTspice and multisim almost certainly have different [default] converge settings. Version 12 of multisim seems to come with a wizard for theese issues. (So what version are you using?) Occasionally I've had to tweak LTspice, but I have no experience with multisim. \$\endgroup\$ Sep 26, 2015 at 10:09
  • \$\begingroup\$ Hi, thanks for reply. I use Multisim Power Pro 14. \$\endgroup\$
    – hari
    Sep 26, 2015 at 10:14
  • \$\begingroup\$ And with previous version I didn't have problems simulating circuits with opamps. It is interesting that if I remove opamp voltage sources, simulation starts without errors. \$\endgroup\$
    – hari
    Sep 26, 2015 at 10:24
  • \$\begingroup\$ Try a different op-amp model and see if it works. \$\endgroup\$
    – Andy aka
    Sep 26, 2015 at 10:30
  • 1
    \$\begingroup\$ Solved. I made stupid mistake, I didn't connect power supplies to opamp correctly. \$\endgroup\$
    – hari
    Sep 26, 2015 at 17:56

1 Answer 1


Power supplies are reversed.

Pin 7 = V+

Pin 4 = V-


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