There is a "newer" surface mount version that is much cheaper ($5-$8 vs $17) - http://www.analog.com/static/imported-files/data_sheets/AD8494_8495_8496_8497.pdf. We don't use surface mount on most of the N8VEM boards though....
On Wednesday, August 13, 2014 10:44:13 AM UTC-7, AltairManRich wrote: > > Wow, that’s super easy. How about the board connector to the probe? > > Rich > > -- > Rich Cini > Collector of Classic Computers > Build Master and lead engineer, Altair32 Emulator > http://www.classiccmp.org/cini > http://www.classiccmp.org/altair32 > > From: Andrew Bingham <[email protected] <javascript:>> > Reply-To: N8VEM-Post <[email protected] <javascript:>> > Date: Wednesday, August 13, 2014 at 1:34 PM > To: N8VEM-Post <[email protected] <javascript:>> > Subject: Re: [N8VEM: 18550] Re: N8VEM Analog/Digital I/O board > > Example of using the AD594/AD595 - > http://hobbybotics.com/projects/hobbybotics-ad595-thermocouple-breakout-v1-0/ > > On Wednesday, August 13, 2014 10:27:21 AM UTC-7, Andrew Bingham wrote: >> >> The only other thing I could think of would be a spot for something like >> http://www.digikey.com/product-detail/en/AD594AQ/AD594AQ-ND/612068 and >> jumpers to connect its 10mv/degC output into the input of one of the ADCs. >> Then if desired, the person building the board could populate in those >> ICs and read out thermocouples. I'd put a couple spots of those if there >> is space. Ideally they would be by the top edge of the card so the >> thermocouple can connect close by. >> >> Andrew >> >> >> On Wednesday, August 13, 2014 10:21:03 AM UTC-7, AltairManRich wrote: >>> >>> There is some spare board real-estate (i.e., the board isn’t >>> particularly dense). Anything else you think I should put on it? >>> >>> >>> Rich >>> >>> -- >>> Rich Cini >>> Collector of Classic Computers >>> Build Master and lead engineer, Altair32 Emulator >>> http://www.classiccmp.org/cini >>> http://www.classiccmp.org/altair32 >>> >>> From: Andrew Bingham <[email protected]> >>> Reply-To: N8VEM-Post <[email protected]> >>> Date: Wednesday, August 13, 2014 at 1:08 PM >>> To: N8VEM-Post <[email protected]> >>> Subject: [N8VEM: 18546] Re: N8VEM Analog/Digital I/O board >>> >>> I've been thinking of doing this for a while. It would be fun to >>> interface the N8VEM hardware with the "real world". You could even make a >>> robot.... >>> >>> Andrew B >>> >>> On Tuesday, August 12, 2014 6:48:08 PM UTC-7, AltairManRich wrote: >>>> >>>> All — >>>> >>>> I’ve designed an analog/digital I/O board for my SBC-188 computer. I’ve >>>> attached a PDF of the schematics for the group to look at and poke holes >>>> in >>>> the design. The specs include an 8-input/8-bit analog input port, a single >>>> 8-bit analog output port and a single 82C55 I/O chip with all three ports >>>> available. >>>> >>>> I’ve attached the schematic PDF. I would greatly appreciate it if >>>> someone could take a look at it and see if there’s anything obviously >>>> wrong >>>> with it. If not, I’ll prototype it and see if it actually works :-) >>>> >>>> Thanks! >>>> >>>> Rich >>>> >>>> -- >>>> Rich Cini >>>> Collector of Classic Computers >>>> Build Master and lead engineer, Altair32 Emulator >>>> http://www.classiccmp.org/cini >>>> http://www.classiccmp.org/altair32 >>>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "N8VEM" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To post to this group, send email to [email protected]. >>> Visit this group at http://groups.google.com/group/n8vem. >>> For more options, visit https://groups.google.com/d/optout. >>> >> -- > You received this message because you are subscribed to the Google Groups > "N8VEM" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:>. > To post to this group, send email to [email protected] <javascript:>. > Visit this group at http://groups.google.com/group/n8vem. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "N8VEM" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/n8vem. For more options, visit https://groups.google.com/d/optout.
