sweep test - op filter

emosms · 02:11 AM

Hi,
I just learned there is software to simulate op amp circuits. But honestly I am lost.
---
Which software to use
//prefferably free, or capable to do that in demo mode
to simulate a circuit:
http://oi44.tinypic.com/xfugaw.jpg
//this is going to be a shelving filter
to sweep through the circuit f.ex. 30-10 000Hz and plot the frequency response as a graph?
//frequency vs db level

Best Regards
p.s.
could it be done in 5spice?
have installed it and have drawn the circuit but don't really get it.
not even sure if it is possible to be done in this application
also, I use some generic symbol for OP, can i load a model for LM833 instead???

emosms · 31st January 2012, 02:03 AM

almost got it

Ouroboros · 2nd February 2012, 11:16 AM

Many here use the free powerful (but VERY user hostile) LT SPICE.

As a new user, you might find the free version of TINA available as a download from TI, to be much easier to use, and will do all you need.

Ouroboros · 2nd February 2012, 11:39 AM

You can use an 'ideal' op-amp in many versiions of SPICe (as in the attached TINA circuit) to check the basic operation, then replace it with the real op-amp model later.

29th January 2012, 12:06 AM	#1
emosms diyAudio Member Join Date: Sep 2010	sweep test - op filter Hi, I just learned there is software to simulate op amp circuits. But honestly I am lost. --- Which software to use //prefferably free, or capable to do that in demo mode to simulate a circuit: http://oi44.tinypic.com/xfugaw.jpg //this is going to be a shelving filter to sweep through the circuit f.ex. 30-10 000Hz and plot the frequency response as a graph? //frequency vs db level Best Regards p.s. could it be done in 5spice? have installed it and have drawn the circuit but don't really get it. not even sure if it is possible to be done in this application also, I use some generic symbol for OP, can i load a model for LM833 instead??? Last edited by emosms; 29th January 2012 at 02:11 AM.

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31st January 2012, 02:03 AM	#2
emosms diyAudio Member Join Date: Sep 2010	almost got it

2nd February 2012, 11:16 AM	#3
Ouroboros diyAudio Member Join Date: Dec 2003 Location: Nottingham UK	Many here use the free powerful (but VERY user hostile) LT SPICE. As a new user, you might find the free version of TINA available as a download from TI, to be much easier to use, and will do all you need.

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