| ??? 10/31/06 17:09 Read: times |
#127140 - final solution? Responding to: ???'s previous message |
After some more research, I think I'm going to use the method described in the Microchip App Note.
If I use a (total) gain of 100 over the two op-amp stages, and run it into a 12bit ADC, I'll have roughly 30bits for a 10*C span. That will also allow me to measure up to the 1250*C max temperature for a Type K TC. If I can be accurate to 5*C, I'll be happy. Thanks for all the suggestions, -Dave |
| Topic | Author | Date |
| Anyone know of 0v - +15v IIC ADC? | 01/01/70 00:00 | |
| an op amp will do nicely | 01/01/70 00:00 | |
| how so? | 01/01/70 00:00 | |
| Two temp sensors enough? | 01/01/70 00:00 | |
| probably | 01/01/70 00:00 | |
| Link | 01/01/70 00:00 | |
| interesting | 01/01/70 00:00 | |
| Tradeoffs | 01/01/70 00:00 | |
| re: tradeoffs | 01/01/70 00:00 | |
| tradeoffs | 01/01/70 00:00 | |
| Where would you mount them? | 01/01/70 00:00 | |
| Where are they mounted | 01/01/70 00:00 | |
| Thanks | 01/01/70 00:00 | |
| Is that True | 01/01/70 00:00 | |
| Three thermocouples, actually | 01/01/70 00:00 | |
| final solution? | 01/01/70 00:00 | |
| Take care! | 01/01/70 00:00 | |
| good catch! | 01/01/70 00:00 | |
Curing caps... | 01/01/70 00:00 |