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ua741 pin details

the ua741 that is there inside the esim_subckt has only 3 pins,the power pins that is needed to run the ic is not there and i want that pins for my model and when i am using lm741 ic then at the time of conversion from kicad to ngspice its showing an error that unknown model..what to do ???

thnks in advance


eSim 13-03-18, 8:49 p.m. ashish

Answers:

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Hello,

LM741 is not recognized in ngspice. The team has created ua741 for the same purpose.
If you need to add external pins, you need to add ports. The other way is you need to create your own subcircuit of LM741 and can add ports to pin 2,3,4,6 and 7. For more information about subcircuit refer eSim user manual: http://esim.fossee.in/resource/book/esimusermanual.pdf
and for more information on the spice model, you can refer here: http://www.ecircuitcenter.com/Circuits/opmodel1/opmodel2.htm

14-03-18, 11:58 a.m. Gloria


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how to add external pins in already created ua741?? and editing lm741 is also giving the same error as unknown model used.

15-03-18, 6:53 p.m. ashish


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