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Sorry, I meant 0.35/Fc => 4.5ns. -- Regards, Tony

Exactly what do you mean by non-linear? You haven't plotted the response to varying input amplitude. All the information you have is the response to two different input pulse widths. No opamp is going

No, you can see what the node names before simulation are by: View > SPICE Netlist As you say, though, the net names are dynamic unless you explicitly name them. Only explicitly named nets are visible

You always should label nodes if they are being referenced in an equation or within a measure statement. Otherwise, they WILL change. leaving the reference invalid. Those labels are visible on the

You can lable the nets with numbers or letters.? As for them showing up as you mentioned I am not sure about that.

Well, except for net 0, common or ground. That is known as the schematic is built. Jim

Those run-time node and net numbers can vary from run to run, especially after adding a component. AFIK, they are not known until the sim runs. Jim, Oregon Research Electronics

I believe that nodes (or nets) can be user-named, and that curves on an LTSpice plot can also be user-named, but sometimes it would be simplest to use the node numbers assigned by the software during

Thank you Andy. I truly appreciate all of your help. I was able to find an opamp that meets my environmental requirements. However the response seems to be nonlinear. Here is the circuit (

I suspect it was a large data file that slowed mine down. My run times were between 12 and 14 seconds, up from ~200 ms V(B) was what I expected, once I realized what the SIN parameters did! One big

Dave wrote, " Certainly slowed down the entire .TRAN period, though. " That should not have happened.? It should slow it down over only 1 ps of the 10 ms simulation -- so about 0.00000001% of it.

Well, that’s true! My mind didn’t conceive of a PHz burst! Certainly slowed down the entire .TRAN period, though. I would have guessed PSICE would only slow down for the 1000 cycles of the burst.

Thanks Tony, I have reported this to Anolog Devices. Regards, Dan

That's the whole point of V2: it forces LTspice to have a very small timestep indeed. Obviously it takes time to plot lots of cycles of 1 petahertz.

Andy, your model here does work all the way down to 1fs. But: 1. It’s much slower as-is, so 2. I deleted the SIN source, V2/B Now, it runs as fast as before, as far as I could sense (didn’t

Or with a resistor, capacitor, and a 90V “B” battery, for a relaxation oscillator flasher! Sent: Sunday, July 16, 2023 2:08 PM To: [email protected] Subject: EXTERNAL: Re: [LTspice] Neon Neon

Neon pilot lights were always used with a series resistor.

In testing for immunity to transients, the transients are really quite energetic, and are supposed to be representative of transients that occur in real life.

John wrote, "... because it would probably explode due to excessive current if it ever reached striking voltage. " Interesting point. But I think it would depend on the impedance of the source of the

For grins, here is another one to try.? It shows one way to control SPICE's internal timestep while not imposing a harshly small Maximum Timestep across the whole simulation (which would make it