Timeline for Temperature drift on volatge divider built with resistors from the same series
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 14, 2020 at 5:19 | vote | accept | diegogmx | ||
| Aug 14, 2020 at 0:51 | comment | added | Kyle B | If you want resistors with close-as-possible temp co's and temperature tracking, use a multi-resistor array such as: cdn.sparkfun.com/assets/9/f/e/3/6/515ddfc0ce395f9a58000000.png This is probably about as good as you can do w/o buying the crazy expensive stuff you mentioned. You'd want to be further careful to do things like make sure they all had similar copper traces coming off the PCB (because they'll sink heat), put it in an insulated box so differing air currents can't cool one side more than the other, etc... | |
| Aug 13, 2020 at 22:12 | answer | added | Spehro 'speff' Pefhany | timeline score: 0 | |
| Aug 13, 2020 at 22:04 | comment | added | diegogmx | exactly, would need 7 resistors for that if im not wrong | |
| Aug 13, 2020 at 21:59 | comment | added | Spehro 'speff' Pefhany | 1.32 = Vin/Vout? | |
| Aug 13, 2020 at 21:58 | comment | added | diegogmx | yet i could probably change the reference so that 1/2 can do | |
| Aug 13, 2020 at 21:56 | comment | added | diegogmx | was thinking in 1.32 | |
| Aug 13, 2020 at 21:55 | comment | added | Spehro 'speff' Pefhany | What ratio do you actually need? Series/parallel combinations for each resistor can do just about any ratio. And once you get down to 99% of the way there, you can use some other kind of resistor without much fear. | |
| Aug 13, 2020 at 21:54 | comment | added | diegogmx | the only problem of that is that in that way you can only do 1/n dividers where n is an integer bigger than 2 | |
| Aug 13, 2020 at 21:51 | comment | added | Spehro 'speff' Pefhany | Same series isn't as good a bet as a combination of the same value resistors off the same reel, but they're both bets. | |
| Aug 13, 2020 at 21:42 | history | asked | diegogmx | CC BY-SA 4.0 |
