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How do I use this device in Pspice? (OPA 657, i can't simulate)

Travis345 over 5 years ago

In my project, i have to use OPA 657 OPAMP made by Texas instrument.

So I downloaded the essential files to silmulate it like OLB, lib files at here

https://www.ti.com/product/OPA657

And I added OLB files at C:\Cadence\SPB_17.2\tools\capture\library

And I added the lib files of OPA657 to configuration files as global

I designed a simple inverting amplifier like this

But there was an error like this

what is the problem..?( why 75 nodes exceeded..?)

(other device worked well like this)

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0 oldmouldy over 5 years ago

The problem is with the complexity of the model. I count 127 internal nodes for the model, as the message states, "only 75 nodes are supported" for the entire circuit without having a license for PSpice to increase, or remove, the node limit. You would need a license for PSpice to be able to simulate this model, even in a "trivial" circuit.
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0 Travis345 over 5 years ago in reply to oldmouldy

but sir i did that samely at my university pc room where has license of pspice. there wasn't an error message but it did not show me a simulation graph, only there was a gray sceeen. nothing was there
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0 Travis345 over 5 years ago in reply to oldmouldy

but sir i did that samely at my university pc room where has license of pspice. there wasn't an error message but it did not show me a simulation graph, only there was a gray sceeen. nothing was there
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