open-source-silicon.dev

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Another interesting variation is to use the ngspice AC/DC resistor: a resistor can have an "AC=val" that overrides normal resistor value for AC analysis. This can be used to open the loop and connect the AC signal source:

Oh the ac resistor sounds great :+1::skin-tone-2:, I'm going to give that a try! Thank you both for these suggestions <@U01819B63HP> <@U028BEUFG2V>. I've tried the filter technique before actually but I don't like the fact that it's frequency dependant, albeit very large. The ac resistor sounds great. I didn't realize that was an option

<@U01819B63HP> what does the netlist entry look like for those resistors? I can't get it to work...
```  r2 vo net7 dc=0.1 ac=1g
  unknown parameter (dc) 
    Simulation interrupted due to error!```

<@U01H2JMLFLL> are you using Xfce or ngspice? for ngspice the syntax i this `R2 net1 net2 10G ac=0.1 m=1` the dc value does not need "DC="

I'm using ngspice. That syntax is working for me now, thanks, <@U01819B63HP>