I tried using the "short" symbol thinking it was a special way to do that, but it still throws an error when creating the spice netlist

@tnt there are various ways to short two nets together. Below image shows 3 cases: A) Add a

short.sym

component. The net to be shorted (the one that goes to the

PLUS

opamp input) must not have a label. Shorting two nets with different attached labels or pins is illegal. B) Add an

ammeter.sym

component. This is a 0V voltage source. The shorted net maintains its name, it will have the same voltage as the other net. C) You can add attribute

spice_ignore=short

to a component. All its ports will be shorted together. As in case A) only one net should have a label/pin attached to it. In all 3 cases the net PANEL is highlighted in yellow. You see short components propagate nodal information.

Thanks, but those don't work for pins as noted.

@tnt I don't know what you exactly need to do. If you want to create a symbol with two shorted pins you can: • create two pins with the same name in the symbol • in the schematic representation of the symbol short the two pins with an ammeter.sym (see image).

Well I'm creating a schematic that represent a design to be taped out. It needs to have a certain number of pins/external ports to be integrated and some of these are basically kelvin sense wires, so they're internally shorted electrically.

If you want to attach different names to the sense wires then you should internally join the nets with 0V voltage sources (this is what the

ammeter.sym

does) Using ports with identical names is a brutal short, it means if node XX is connected on one of the ports the other port will also be XX and you can't name it to YY, since having a piece of wire with different labels on its end is considered an electrical short and in 99.999% of the cases a design mistake. Joining different nets with ammeters allows you to have different aliases of the same net, with identical voltages, adding negligible simulation overhead. You can later replace the ammeters with small resistors without changing the net topology (no change in net names).