| ??? 11/29/07 14:56 Read: times |
#147565 - go relative Responding to: ???'s previous message |
Erik Malund said:
use the internal reference for the A/D and measure both the voltage on top of your bridge or whatever and the 'metered result'. then calculate the percentage of the 'top voltage' the 'metered result' is. That way you can, wile maintaining ultimate precision, use a reference of any precision (cheap) just as long as it gives the same result twice in a millisecond.
Erik Thanks ,please elucidate how you suggest to measure the %error , I would use REF03 due to low cost which is 0.2% accurate , I dont feel thats too bad. APC |
| Topic | Author | Date |
| Cygnal/Silabs MCU Adc reference | 01/01/70 00:00 | |
| WHICH? | 01/01/70 00:00 | |
| WHICH? | 01/01/70 00:00 | |
| Research? | 01/01/70 00:00 | |
| Research? , yes you are right | 01/01/70 00:00 | |
| Maxim, AD, LT | 01/01/70 00:00 | |
| thanks | 01/01/70 00:00 | |
| Tall order | 01/01/70 00:00 | |
| REF3225 == The price of F206 :( | 01/01/70 00:00 | |
| What kind of sensor? | 01/01/70 00:00 | |
| go relative | 01/01/70 00:00 | |
| go relative | 01/01/70 00:00 | |
| ok, let me try | 01/01/70 00:00 | |
| ok, let me ... | 01/01/70 00:00 | |
| explaining | 01/01/70 00:00 | |
vsomething | 01/01/70 00:00 |