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Since charge injection is due to capacitive coupling, I would add a parasitic capacitor between the Enable pin and the gate itself (perhaps via an inverter, depending on the internal logic). Using a

Dear people, After experimenting with some analog switch models I realized I didn't have the correct charge injection spike or glitch in my simulations. I tried an 74HC4051 (this is actually an

Hello Jerry, I have had success with .options cshunt=3e-17 Higher values like 1e-16 will change the behavior at very high frequencies. I have uploaded the schematic including the model files. Files >

Thank you Helmut. ?I thought maybe I could get turn on performance with minimal tweaking if the model was accurate enough but it seems I am spending too much effort on that. ?I am sure the model has

Hi all, I've uploaded the .asc to the Temp file, under the name "compare LM4562_OPA2134" I've used the basis of two existing files that seemed to work, although the LM4562 .ac analysis stalls. Anyway

I'm sorry for the not so wild goose-chase, I don't know why, but the symbol and the source file(s) gave (and give) different results. I won't go into details, it's been quite the hunt, but the error

Dear James, No insult in any way. If you think so, beg your pardon. Je vous prie d’accepter mes excuses. Sorry for your first computer with your first programs (?). My first one was in wood and

Hello Tim, A high Cshunt of 50fF will often change the intended behavior a model. Some/many users gave up with the Microchip models due to convergence problems in LTspice. They simply use the

In message <laev98+qmgura@...>, dated Mon, 6 Jan 2014, jamespnelson@... writes: Phillipe has probably misunderstood your post. -- OOO - Own Opinions Only. With best wishes. See

Hello Alzie, You are my hero. It is interesting that the Linux filefinder cannot find the file in this location. I found it, replaced it with the one I modified and the problem is solved. Thank you

I have tried setting the Cshunt option, but it does not help until I get to 50fF. ?In fact, when I cascade a couple sections I have found it needs to be as high as 70fF. ?I have also tried 700fF,

Dear Philippe, Unless you were born before 1964, I wrote my first computer programs before you were even born. So, why are you insulting me? Lewis

Hi James I run lts on wine on (x)ubuntu, (M$ free zone!) and heres what i found doing a file search: Theyre in a few places. /home/alzie/.wine/drive_c/Program Files/LTC/LTspiceIV/lib/cmp/standard.dio

Hello M. Lewis or James, You have to make some basic, simple learning about how to use a computer. On the first: How to use a text editor. How to make a simple save of your file in your best choosen

By the time I write this I had a stroke of luck and found out that the problem resides in a completely different location: rrc(x). The cause: As it is now, LTspice allows if(x>1,1,bogus) where, if

I have been working privately with Yonggang over the past week and have to conclude that somewhere there are differences in his libraries. Doing all the standard changes: dots <=> dashes (PSpice

Hi Andy, OK, after playing around and rebooting Windoze about a dozen times, it finally finds the new file. Now, under WINE, I copied the standard.dio file onto a thumb-drive and deleted the file from

In message <lae3ns+13fkh80@...>, dated Mon, 6 Jan 2014, sulpher94@... writes: This mailing list doesn't work like that. You have to do some work first. By studying textbooks and

In message <CALBs-TjWn+VgRqb3JsZ9kHGV7q0bnn9h6QRrej4kkCfkHxjAqg@...>, dated Mon, 6 Jan 2014, Andy <Andrew.Ingraham@...> writes: How dull! I would add an amusing or insulting message

sulpher94 wrote: "Can anybody help me to write simulation for adjustable power supply " Yes, I am sure people can help with that. Andy