Analog Devices has a model for their AD8033, as AD8033.cir. http://www.analog.com/Analog_Root/static/techSupport/designTools/spiceModels/license/spice_general.html?cir=AD8033.cir How do I get this into LT Spice? -- John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom timing and laser controllers Photonics and fiberoptic TTL data links VME analog, thermocouple, LVDT, synchro, tachometer Multichannel arbitrary waveform generators
another LT Spice question
Started by ●September 15, 2013
Reply by ●September 15, 20132013-09-15
On Sun, 15 Sep 2013 17:06:47 -0700, John Larkin <jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:> > >Analog Devices has a model for their AD8033, as AD8033.cir. > >http://www.analog.com/Analog_Root/static/techSupport/designTools/spiceModels/license/spice_general.html?cir=AD8033.cir > >How do I get this into LT Spice?First save the file wherever you want, but change the suffix such that it's... AD8033.lib Then follow Fred Abse' cute trick... "Open the subckt file in LTspice. Right click on the "subckt" line. A symbol is automatically generated, and the symbol editor opens. You can then edit the symbol as much as you like. Saving the symbol creates a new symbol category, "Auto Generated", if it doesn't already exist. No need for an .include, or .lib statement. The file name is automatically inserted into the symbol "model file" attribute." The symbol will just be a block... who cares. But you can fancy it up by redrawing the outline to suit your own tastes. There's probably also a way to import existing graphics, but I don't know that gimmick yet. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.
Reply by ●September 15, 20132013-09-15
Jim Thompson <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:> On Sun, 15 Sep 2013 17:06:47 -0700, John Larkin > <jjlarkin@highNOTlandTHIStechnologyPART.com> wrote: > >> >> >>Analog Devices has a model for their AD8033, as AD8033.cir. >> >>http://www.analog.com/Analog_Root/static/techSupport/designTools/spiceModels/license/spice_general.html?cir=AD8033.cir >> >>How do I get this into LT Spice? > > First save the file wherever you want, but change the suffix such that > it's... > > AD8033.lib > > Then follow Fred Abse' cute trick... > > "Open the subckt file in LTspice. > > Right click on the "subckt" line. > > A symbol is automatically generated, and the symbol editor opens. You > can then edit the symbol as much as you like. > > Saving the symbol creates a new symbol category, "Auto Generated", if > it doesn't already exist. > > No need for an .include, or .lib statement. The file name is > automatically inserted into the symbol "model file" attribute." > > The symbol will just be a block... who cares. But you can fancy it up > by redrawing the outline to suit your own tastes. > > There's probably also a way to import existing graphics, but I don't > know that gimmick yet.This is perfect! I need those very instructions to use Duncan's model http://www.duncanamps.com/spice/miscsemi/2n2646.sub in tonight's home school class in UJT modeling. ;) -- Don Kuenz
Reply by ●September 16, 20132013-09-16
On Sun, 15 Sep 2013 17:20:25 -0700, Jim Thompson <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:>> >> >> Analog Devices has a model for their AD8033, as AD8033.cir. >> >> http://www.analog.com/Analog_Root/static/techSupport/designTools/spiceModels/license/spice_general.html?cir=AD8033.cir >> >> How do I get this into LT Spice? > First save the file wherever you want, but change the suffix such that > it's... > AD8033.lib > Then follow Fred Abse' cute trick... > "Open the subckt file in LTspice. > Right click on the "subckt" line. > A symbol is automatically generated, and the symbol editor opens. You > can then edit the symbol as much as you like. > Saving the symbol creates a new symbol category, "Auto Generated", if > it doesn't already exist. > No need for an .include, or .lib statement. The file name is > automatically inserted into the symbol "model file" attribute." > The symbol will just be a block... who cares. But you can fancy it up > by redrawing the outline to suit your own tastes. > There's probably also a way to import existing graphics, but I don't > know that gimmick yet. > > ...Jim ThompsonNever knew about that feature. I always placed some similar symbol part on the schematic, then changed its reference to include the text from vendor, then put the whole thing back into Linear's Library - for future retrievals. Only to discover once that the 'update' removes things without telling you, so...had to put in another location, but still easy to find. Also, just noticed I have July, 2013 ver 4.19i and it contains a myriad of LT1028 OpAmps, including LT1028N with the extra pin connection.
Reply by ●September 16, 20132013-09-16
On Mon, 16 Sep 2013 06:55:01 -0700, RobertMacy <robert.a.macy@gmail.com> wrote:>On Sun, 15 Sep 2013 17:20:25 -0700, Jim Thompson ><To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote: > >>> >>> >>> Analog Devices has a model for their AD8033, as AD8033.cir. >>> >>> http://www.analog.com/Analog_Root/static/techSupport/designTools/spiceModels/license/spice_general.html?cir=AD8033.cir >>> >>> How do I get this into LT Spice? >> First save the file wherever you want, but change the suffix such that >> it's... >> AD8033.lib >> Then follow Fred Abse' cute trick... >> "Open the subckt file in LTspice. >> Right click on the "subckt" line. >> A symbol is automatically generated, and the symbol editor opens. You >> can then edit the symbol as much as you like. >> Saving the symbol creates a new symbol category, "Auto Generated", if >> it doesn't already exist. >> No need for an .include, or .lib statement. The file name is >> automatically inserted into the symbol "model file" attribute." >> The symbol will just be a block... who cares. But you can fancy it up >> by redrawing the outline to suit your own tastes. >> There's probably also a way to import existing graphics, but I don't >> know that gimmick yet. >> >> ...Jim Thompson > > >Never knew about that feature. > >I always placed some similar symbol part on the schematic, then changed >its reference to include the text from vendor, then put the whole thing >back into Linear's Library - for future retrievals. Only to discover once >that the 'update' removes things without telling you, so...had to put in >another location, but still easy to find. > >Also, just noticed I have July, 2013 ver 4.19i and it contains a myriad of >LT1028 OpAmps, including LT1028N with the extra pin connection.Could you post those models and associated asy's, or E-mail to me? I want to see what the model looked like before the recent revision. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.
Reply by ●September 16, 20132013-09-16
On Sun, 15 Sep 2013 17:20:25 -0700, Jim Thompson wrote:> On Sun, 15 Sep 2013 17:06:47 -0700, John Larkin > <jjlarkin@highNOTlandTHIStechnologyPART.com> wrote: > >> >> >>Analog Devices has a model for their AD8033, as AD8033.cir. >> >>http://www.analog.com/Analog_Root/static/techSupport/designTools/spiceModels/license/spice_general.html?cir=AD8033.cir >> >>How do I get this into LT Spice? > > First save the file wherever you want, but change the suffix such that > it's... > > AD8033.lib > > Then follow Fred Abse' cute trick... > > "Open the subckt file in LTspice. > > Right click on the "subckt" line. > > A symbol is automatically generated, and the symbol editor opens. You > can then edit the symbol as much as you like. > > Saving the symbol creates a new symbol category, "Auto Generated", if > it doesn't already exist. > > No need for an .include, or .lib statement. The file name is > automatically inserted into the symbol "model file" attribute." > > The symbol will just be a block... who cares. But you can fancy it up > by redrawing the outline to suit your own tastes. > > There's probably also a way to import existing graphics, but I don't > know that gimmick yet. >No need to change the file extension, .cir works just as well. -- "Design is the reverse of analysis" (R.D. Middlebrook)
Reply by ●September 16, 20132013-09-16
On Mon, 16 Sep 2013 12:02:10 -0700, Fred Abse <excretatauris@invalid.invalid> wrote:>On Sun, 15 Sep 2013 17:20:25 -0700, Jim Thompson wrote: > >> On Sun, 15 Sep 2013 17:06:47 -0700, John Larkin >> <jjlarkin@highNOTlandTHIStechnologyPART.com> wrote: >> >>> >>> >>>Analog Devices has a model for their AD8033, as AD8033.cir. >>> >>>http://www.analog.com/Analog_Root/static/techSupport/designTools/spiceModels/license/spice_general.html?cir=AD8033.cir >>> >>>How do I get this into LT Spice? >> >> First save the file wherever you want, but change the suffix such that >> it's... >> >> AD8033.lib >> >> Then follow Fred Abse' cute trick... >> >> "Open the subckt file in LTspice. >> >> Right click on the "subckt" line. >> >> A symbol is automatically generated, and the symbol editor opens. You >> can then edit the symbol as much as you like. >> >> Saving the symbol creates a new symbol category, "Auto Generated", if >> it doesn't already exist. >> >> No need for an .include, or .lib statement. The file name is >> automatically inserted into the symbol "model file" attribute." >> >> The symbol will just be a block... who cares. But you can fancy it up >> by redrawing the outline to suit your own tastes. >> >> There's probably also a way to import existing graphics, but I don't >> know that gimmick yet. >> > >No need to change the file extension, .cir works just as well.Certainly, with LTspice. I tend to be a stickler and follow Spice standard conventions, avoiding lots of confusion... .CIR, circuit file, ready for simulation .NET, netlist file, components, but no simulation information .OUT, output file, bias points, etc.; sometimes numerical "listing" of output data in Berkeley Spice format (PSpice, HSpice, SmartSpice do this, LTspice does not :-( .DAT, output data for viewing in a post-processor .RAW, LTspice of conventional Spice .DAT .LIB, the most usual way of conveying models .MOD, .SUB, unconventional, but also used for models .INC, (.INCLUDE), the garbage way to pass libraries, takes much space since all devices listed in library are loaded. .LIB, loads only the devices in your schematic PSpice has other extensions, as well, for passing messages and error notifications. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.
Reply by ●September 16, 20132013-09-16
On Mon, 16 Sep 2013 12:20:36 -0700, Jim Thompson wrote:> .RAW, LTspice of > conventional Spice .DAT"rawfiles" originated in Berkeley Spice. " The standard suffix for rawspice files in VMS is ".raw"" (Spice 3f man page) -- "Design is the reverse of analysis" (R.D. Middlebrook)
Reply by ●September 16, 20132013-09-16
On Mon, 16 Sep 2013 12:29:57 -0700, Fred Abse <excretatauris@invalid.invalid> wrote:>On Mon, 16 Sep 2013 12:20:36 -0700, Jim Thompson wrote: > >> .RAW, LTspice of >> conventional Spice .DAT > >"rawfiles" originated in Berkeley Spice. > >" The standard suffix for rawspice files in VMS is ".raw"" >(Spice 3f man page)Probably why I never saw them. When I last used Berkeley Spice (~1980) I used the .OUT file to drive a tractor printer, outputting a numerical list of voltage versus time and *'s marking a rough waveform ;-) ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.
Reply by ●September 17, 20132013-09-17
On Mon, 16 Sep 2013 13:41:40 -0700, Jim Thompson wrote:> On Mon, 16 Sep 2013 12:29:57 -0700, Fred Abse > <excretatauris@invalid.invalid> wrote: > >>On Mon, 16 Sep 2013 12:20:36 -0700, Jim Thompson wrote: >> >>> .RAW, LTspice of >>> conventional Spice .DAT >> >>"rawfiles" originated in Berkeley Spice. >> >>" The standard suffix for rawspice files in VMS is ".raw"" (Spice 3f man >>page) > > Probably why I never saw them. When I last used Berkeley Spice (~1980) I > used the .OUT file to drive a tractor printer, outputting a numerical list > of voltage versus time and *'s marking a rough waveform ;-) >I can still do ASCII plots (Berkeley 3F). Not that I ever do. 1980 was BG (Before Gnuplot) :-) -- "Design is the reverse of analysis" (R.D. Middlebrook)
