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I re-ran it as a DC sweep, keeping I1 sufficiently positive. I get pretty good agreement with the datasheet's plot, noting the polarity inversion of your circuit, up to about 4 or 5 mA. At that point,

Since it is a log amp, shouldn't the input current (I1, I2) be uni-polar? Andy ?

ericsson.sunshine asked about a Log amp from T.I. This is just a very first impression, and may or may not be meaningful. You are doing this as a transient analysis. It's possible you are sweeping the

Hi, : Here is a pure technical problem. I had found a log amp model (TI) LOG112 at the file folder. When I was trying to plot the "Vo vs I1/I2" curve mentioned in the datasheet, I can't work it out.

Gunoiar wrote: "Also, I observe that the logic library contains only the graphical description on certain devices but lacks the simulation definitions." I am confused what you mean by that. Are you

Hello, You could use the basic AND, NAND from the folder [Digital] plus a NMOS and PMOS transistor. See the circuit diagram in the datasheet. https://www.idt.com/document/dst/74cbtlv3253-datasheet

Hello one and all. it's time to bite the bullet. Do some digital simulation on an analog simulator :) I need to design a four channel sequential track and hold. Part of this contains a 2 bit digital

Dear Andy, the Standard Ferrite Bead symbol in LTspice of Wurth is not encrypted. Once you selected a particular P/N and right click on the symbol, you can see the datas used for the simulation model.

Indeed, fine LTspice group, I am, most times, happiest to take the advice that one "learns more with mouth closed" ;-) Thanks to all of you who proffer your experience in both LTspice and electronics,

Hello wms121 You wrote : " Check your primary files in LTSPICEXVII where you should find the "scad.exe" files in LTSPICEIV. " I have XVIIx86.exe on 32 bits system and XVIIx64;exe on 64 bits on 64b

Maybe I didn't read well enough, but what is the purpose of all this? Because if it's about doing sync updates for IV and XVII, all you have to do is fire up the desired version and do a normal sync

theeten, Check your primary files in LTSPICEXVII where you should find the "scad.exe" files in LTSPICEIV. You should see a 64 bit .exe file and a 32bit .exe file listed. Follow the procedures I gave

Hello wms121 I also use W7 32 and W7 64 and W10 64. The LTspiceXVII installation does not let me to choose between 32 or 64 bits. But I always do complete installations. I don't like sync update.

...just Windows 10 and Windows 7, although I have tested LTSPICEIV on WinXP and OpenSuse13 via WINE. If I have any difficulties using Linux, OpenBSD or Solaris* I will post that info here. W. Warren

Hello wms121 What OS are you using ? Regards PhB

..just found this one out. NO I didn't get any help from Mike E., Helmut, or Andy. Just sort of "smelled my way around" using what I know about Windows Applications. To do the sync update: 1. Start

riscy00 wrote: "Was is possible for user to choose default file location for library collection elsewhere other than drive C" That would be a good question to ask the LTspice team. (That's not us!)

It's a good point, but 'few' is probably an underestimate, judging by the number of people requiring approval to post who joined the group several years ago. The lurkers might even be a majority; it's

Only thing I want to add is I would think there might be a few people who don't have a general need or haven't needed to post anything that lurk, and learn vicariously through others questions. So

Does anyone know what may be useful WINE DLL overrides for LTspiceXVII? I found some years ago looking at error messages and by trial and error, but I don't think they apply anymore.