I've had problems running a sim of a circuit using the LM324NS.mod file.
The attached circuit has two op-amps. If both are LM324NS I find the sim crashes with a 'singular matrix' error message. If one (or both) is replaced by an LT1006 opamp the sim runs ok .
I'm wondering if there's a bug with the LM324NS model (more likely I'm not doing something right, though). I'd be grateful if someone else could run this sim to see if the results can be replicated.
The attached circuit has two op-amps. If both are LM324NS I find the sim crashes with a 'singular matrix' error message. If one (or both) is replaced by an LT1006 opamp the sim runs ok .
I'm wondering if there's a bug with the LM324NS model (more likely I'm not doing something right, though). I'd be grateful if someone else could run this sim to see if the results can be replicated.