Problem at op amp shematic orcad

[Tom2]

I tried to build a simple inverting amplifier in orcad as present in the figure bellow.The problem appear when i tried to simulate the circuit.
the error in capture is :

WARNING: [NET0093]
No PSpiceTemplate for U1A, ignoring


and at the ps spice :
ERROR -- Less than 2 connections at node N15618




Is anyone who know what is the problem and how to fix it ????????????????????????????


Thanks in advance.

 

[FvM]

Select components from the simulation library that have SPICE models.

 

[bigdogguru]

As FvM noted the model you have used in the design is missing the PSpice Template which is required for simulation.

When performing a Part Search or adding an additional library ensure the search path is set for the PSpice library:

C:\CADENCE\SPB_16.3\TOOLS\CAPTURE\library\pspice

It should also be noted the green circle next to the component indicates the lack of a PSpice Template as well.

BigDog

 

[skydiverc]

Your Bias voltage to the + input should be Vin/2 not ground if using a single ended supply as shown.
If you use the circuit as shown you will only get 1/2 waveform out.
either change the bias voltage or use a +v and -V supply.

 

[Tom2]

I solved the problem and now i find a new problem. I try to simulate an AC sweep (frequency respond) in orcad (with the above circuit). The problem is that i can see any graph. The graph is present only the axis (empty graph).

 

[bigdogguru]

You need to specify a trace/output point.

Either place a Net Alias, for example "out" and then add the Trace to the plot by utilizing the "Add Traces" window with the expression "V(out)".

Or place a Marker at the point of interest, which can be found at the PSpice->Markers menu and then rerun the simulation.




BigDog

 

[Tom2]

And how to convert the schematic and the graph to pdf ????

 

[bigdogguru]

I have Adobe Acrobat Professional installed on all my systems, therefore I not sure if the capability to print to an Adobe PDF is possible with your current system. I use this technique to to convert both the schematic and plots to PDFs. You can also use a utility like PicPick to grab a screen shot of either image. There maybe other techniques available as well.

BigDog

 

[atripathi]

You can also export the schematic to pdf using Capture> Pdf export utility. Refer tcl Application guide for details. This is available <installdir>\tools\capture\tclscripts\OrCAD_Capture_TclTk_Extensions.pdf

 

[Tom2]

If i would like to built a circuit in which there are micro-controllers/fpga... Is it possible to simulate their output result of the micro-controller/fpga?? if yes how is this possible?