Tutorials, news, snippets, and other various musings about the electrical engineering industry.

What's Good About PSpice IBIS Model Support? It’s in the 16.6 Release!

PSpice 16.6 now provides IBIS model simulation capability. This often requested feature supports:


  • SPICE circuit generation for all IBIS versions
  • Support for V-T curves
  • Analog simulation of XNets (use Advanced Analysis tools for smoke analysis on bypass components)



Converting IBIS to PSpice

The Model Editor now supports all versions of IBIS for V-T curves.



Invoke Modeled.exe.

Invoke the IBIS converter from the menu Model > IBIS Translator.

Browse to Database\IBISImport\epcs64.ibs:

Click OK to generate PSpice Model.


Simulate Nets with SI Models

PSpice allows you to simulate nets with SI Model assignments in PSpice. Consider the following example circuit:

Select a design from Project Manager and invoke the library setup. Ensure the library setup is correct:


Select pins U1A.16 and U1B.11 and select RMB > Signal Integrity >Assign SI Model:

Assign any output model to the pin:

Open a TCL Command Window in Capture from the menu View > Command Window.

Type in the following TCL command to activate the IBIS netlisting -SetOptionString IBIS_PINS_NETLIST TRUE

Next, source a TCL file from your hierarchy -
source {$CDSROOT\pspice\tclscripts\IbisToPSpice\tcl\ibisnetlist.tcl}

Create a transient simulation profile Tran.


Generate the PSpice Netlist from IBIS by executing the following command -

Run the PSpice Simulation.

Plot V(Mynet).

Create new measurement:

Launch AA for Sensitivity analysis from Capture.

Import measurement.

In the AA TCL Window, enter the following command -
source { \database\SimulatingSI\PspAAProcessDesign.tcl}


Run Sensitivity Analysis.

I look forward to your comments about how you’re using these new capabilities!

Jerry “GenPart” Grzenia