On 18/07/2017 16:24, Jim Thompson wrote:> On Tue, 18 Jul 2017 09:48:18 +0100, piglet <erichpwagner@hotmail.com> > wrote: > >> On 17/07/2017 22:59, Jim Thompson wrote: >>> On Mon, 17 Jul 2017 13:22:48 -0700, Jim Thompson >>> >>> One embellishment method... >>> >>> <http://www.analog-innovations.com/SED/LogicTranslator_Classic_2017-07-17.png> >>> >>> Done by ignoring the pin-out restrictions of the CD4007 but no >>> optimizing size scaling. >>> >>> ...Jim Thompson >>> >> >> Thanks Jim. That embellishment is too subtle for me: MN1 and MN2 have >> their gates at +15V and their substrates at 0V so both will be fully >> enhanced and basically just two pieces of wire. Is that a monolithic way >> of making a low resistance? >> >> piglet > > At the low end of the output swing they're low resistances, at the > high end of the output swing they're high resistances. Thus the low > current required to 'upset' the latch. > > ...Jim Thompson >Thanks. I see now. piglet
Good Find, CD4007 Spice Model Library....
Started by ●July 15, 2017
Reply by ●July 18, 20172017-07-18
Reply by ●July 18, 20172017-07-18
On Tue, 18 Jul 2017 22:20:37 +0100, piglet <erichpwagner@hotmail.com> wrote:>On 18/07/2017 16:24, Jim Thompson wrote: >> On Tue, 18 Jul 2017 09:48:18 +0100, piglet <erichpwagner@hotmail.com> >> wrote: >> >>> On 17/07/2017 22:59, Jim Thompson wrote: >>>> On Mon, 17 Jul 2017 13:22:48 -0700, Jim Thompson >>>> >>>> One embellishment method... >>>> >>>> <http://www.analog-innovations.com/SED/LogicTranslator_Classic_2017-07-17.png> >>>> >>>> Done by ignoring the pin-out restrictions of the CD4007 but no >>>> optimizing size scaling. >>>> >>>> ...Jim Thompson >>>> >>> >>> Thanks Jim. That embellishment is too subtle for me: MN1 and MN2 have >>> their gates at +15V and their substrates at 0V so both will be fully >>> enhanced and basically just two pieces of wire. Is that a monolithic way >>> of making a low resistance? >>> >>> piglet >> >> At the low end of the output swing they're low resistances, at the >> high end of the output swing they're high resistances. Thus the low >> current required to 'upset' the latch. >> >> ...Jim Thompson >> > >Thanks. I see now. > >pigletThere are far snazzier ways, but can't be done with CD4007 devices... plus the device count would offend Larkin's sensibilities ;-) (Did you note that low power even at a 10MHz rate?) ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | STV, Queen Creek, AZ 85142 Skype: skypeanalog | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I'm looking for work... see my website. Thinking outside the box...producing elegant & economic solutions.
Reply by ●July 19, 20172017-07-19
"Jim Thompson" wrote in message news:jdinmc5tvkl0kbcv9em0q2c2ta3lv6v0tf@4ax.com... On Sun, 16 Jul 2017 20:09:11 -0000 (UTC), Cursitor Doom <curd@notformail.com> wrote:>On Sun, 16 Jul 2017 09:26:30 -0700, Jim Thompson wrote: > >> Then it dawned. His "compiling" is going in and replacing every >> recognizable "standard" part in the netlist with idealized equivalents. >> Thus the speed "improvement". >s >>Oh boy. Well, I guess Mike in his own defence would simply say he'd >>refund you every single cent you paid for it. ;-) >>I hope Mike's not reading this, btw, as from the exchanges I've had with >>him from time to time in the past, he doesn't like this kind of thing >>being openly discussed in a public forum (not surprisingly).>Having met him face-to-face over lunch at one of his seminars a few >years back, I'd rank Mike Engelhardt as a first class narcissistic >pompous ass... and I'm being kind >:-}I have to agree. If you recall around 2,000 he posted to this PUBLIC NG that I had applied to LT, and trashed my resume in PUBLIC, and hence told the world that I had applied for a job whilst employed at TI. I made an official complaint to LT HR that Mike had breached a clear confidentiality. 17 years on, I have yet to receive any apology from LT. This also says something about LT. Anyway, at least I now have a superior to Mikes LTSpice VDMOS. To wit, non-linear cgs, cgd, quasi-sat and subthreshold... http://www.anasoft.co.uk/MOS1Model.htm :-) -- Kevin Aylward http://www.anasoft.co.uk - SuperSpice http://www.kevinaylward.co.uk/ee/index.html
Reply by ●July 19, 20172017-07-19
On Wed, 19 Jul 2017 19:46:58 +0100, "Kevin Aylward" <kevinRemovAT@kevinaylward.co.uk> wrote:>"Jim Thompson" wrote in message >news:jdinmc5tvkl0kbcv9em0q2c2ta3lv6v0tf@4ax.com... > >On Sun, 16 Jul 2017 20:09:11 -0000 (UTC), Cursitor Doom ><curd@notformail.com> wrote: > >>On Sun, 16 Jul 2017 09:26:30 -0700, Jim Thompson wrote: >> >>> Then it dawned. His "compiling" is going in and replacing every >>> recognizable "standard" part in the netlist with idealized equivalents. >>> Thus the speed "improvement". >>s >>>Oh boy. Well, I guess Mike in his own defence would simply say he'd >>>refund you every single cent you paid for it. ;-) >>>I hope Mike's not reading this, btw, as from the exchanges I've had with >>>him from time to time in the past, he doesn't like this kind of thing >>>being openly discussed in a public forum (not surprisingly). > >>Having met him face-to-face over lunch at one of his seminars a few >>years back, I'd rank Mike Engelhardt as a first class narcissistic >>pompous ass... and I'm being kind >:-} > >I have to agree. If you recall around 2,000 he posted to this PUBLIC NG that >I had applied to LT, and trashed my resume in PUBLIC, and hence told the >world that I had applied for a job whilst employed at TI. I made an >official complaint to LT HR that Mike had breached a clear confidentiality. >17 years on, I have yet to receive any apology from LT. This also says >something about LT. > >Anyway, at least I now have a superior to Mikes LTSpice VDMOS. To wit, >non-linear cgs, cgd, quasi-sat and subthreshold... > >http://www.anasoft.co.uk/MOS1Model.htm :-) > >-- Kevin Aylward >http://www.anasoft.co.uk - SuperSpice >http://www.kevinaylward.co.uk/ee/index.htmlNice! ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | STV, Queen Creek, AZ 85142 Skype: skypeanalog | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I'm looking for work... see my website. Thinking outside the box...producing elegant & economic solutions.
Reply by ●August 7, 20172017-08-07
On Sat, 15 Jul 2017 11:54:10 -0700, Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:>On Sat, 15 Jul 2017 18:36:23 -0000 (UTC), Cursitor Doom ><curd@notformail.com> wrote: > >>On Sat, 15 Jul 2017 11:31:33 -0700, Jim Thompson wrote: >> >>> Good Find, CD4007 Spice Model Library, at Rochester Institute of >>> Technology, actual measurements by Professor Lynn Fuller... >>> >>> <https://people.rit.edu/lffeee/CD4007_SPICE_MODEL.pdf> >>> >>> >>> ...Jim Thompson >> >>You must have an *exceedingly* copious library of spice models by now, >>Jim? > >119 Manufacturers/Foundries, some, like X-Fab, with 12 different >processes. > >Plus all the behavioral models I've rolled myself, probably also in >the hundreds ;-) > > ...Jim ThompsonJust added foundry #120... Vanguard International Semiconductor Corporation ;-) ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | STV, Queen Creek, AZ 85142 Skype: skypeanalog | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I'm looking for work... see my website. Thinking outside the box...producing elegant & economic solutions.
