On Thursday, November 9, 2017 at 5:31:54 PM UTC-8, Lasse Langwadt Christensen wrote: ...> > Low current, basically need to drive about 100 small capacitors from > > maybe -100 to +200 volts. I might ping you privately about dropping > > your name in a proposal. Long-shot. > > http://ww1.microchip.com/downloads/en/DeviceDoc/20005826A.pdf ?That's a derivative of the HV252 I architected about 16 years ago with Supertex doing the design and fabrication. Part of the deal was that they had the rights to use the design themselves. The original application was for driving the electrostatic MEMS mirror actuators in an optical switch (http://www.calient.net/products/s-series-photonic-switch/). The 12 Meg Sichrome feedback resistors took up about 50% of the die area. kevin
Jim T
Started by ●November 9, 2017
Reply by ●November 9, 20172017-11-09
Reply by ●November 9, 20172017-11-09
On Thu, 09 Nov 2017 17:23:14 -0800, John Larkin <jjlarkin@highland_snip_technology.com> wrote:>On Thu, 09 Nov 2017 17:03:52 -0700, Jim Thompson ><To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote: > >>On Thu, 09 Nov 2017 13:18:05 -0800, John Larkin >><jjlarkin@highland_snip_technology.com> wrote: >> >>>Hey, Jim, >>> >>>Have you worked with any high voltage analog IC processes? Like, say, >>>300 volts swing? >>> >>>I know that APEX used to have a horrible HV cmos process, maybe fabbed >>>by AT&T or IBM or somebody improbable, but they use discretes now >>>mostly. >> >>Couldn't easily discern from the fly sheets, so I sent an inquiry to a >>field engineer I know at X-Fab. >> >>He's quite responsive, even though he's in Germany most of the time. >>Should have an answer in a day or two. >> >>===> What kind of current handling at that voltage? >> >> ...Jim Thompson > >Low current, basically need to drive about 100 small capacitors from >maybe -100 to +200 volts. I might ping you privately about dropping >your name in a proposal. Long-shot.OK. I deal with lots of "long-shots" ;-) ...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 | It's what you learn, after you know it all, that counts.
Reply by ●November 9, 20172017-11-09
On Thu, 9 Nov 2017 17:31:50 -0800 (PST), Lasse Langwadt Christensen <langwadt@fonz.dk> wrote:>Den fredag den 10. november 2017 kl. 02.23.25 UTC+1 skrev John Larkin: >> On Thu, 09 Nov 2017 17:03:52 -0700, Jim Thompson >> <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote: >> >> >On Thu, 09 Nov 2017 13:18:05 -0800, John Larkin >> ><jjlarkin@highland_snip_technology.com> wrote: >> > >> >>Hey, Jim, >> >> >> >>Have you worked with any high voltage analog IC processes? Like, say, >> >>300 volts swing? >> >> >> >>I know that APEX used to have a horrible HV cmos process, maybe fabbed >> >>by AT&T or IBM or somebody improbable, but they use discretes now >> >>mostly. >> > >> >Couldn't easily discern from the fly sheets, so I sent an inquiry to a >> >field engineer I know at X-Fab. >> > >> >He's quite responsive, even though he's in Germany most of the time. >> >Should have an answer in a day or two. >> > >> >===> What kind of current handling at that voltage? >> > >> > ...Jim Thompson >> >> Low current, basically need to drive about 100 small capacitors from >> maybe -100 to +200 volts. I might ping you privately about dropping >> your name in a proposal. Long-shot. > >http://ww1.microchip.com/downloads/en/DeviceDoc/20005826A.pdf ? > >That's cool. We need negative swing, but maybe we can bias up the other sides of the caps. The price is unreasonable for production, but it would be fine for the demos. Thanks. I'll see if we can use it. -- John Larkin Highland Technology, Inc lunatic fringe electronics
