| ??? 10/01/10 19:21 Read: times |
#178842 - two things Responding to: ???'s previous message |
I am using Si-Labs C8051F005. I was trying to save a opamp and PCB space by using inbuilt amplifier before the ADC.
When i selected the gain of 16, 'gain' is false, it is a reference voltage reduction having the same effect i found that the ADC counts are fluctuating by 5-6 counts in aprox 2000 counts. At firts i was doubting on my analogue signal conditioning circuit. but its output is found quite steady. rather typical amount of noise, actually quite good Erik |
| Topic | Author | Date |
| Si-lab MCU ADC : unstable gain? | 01/01/70 00:00 | |
| two things | 01/01/70 00:00 | |
| Re:two things | 01/01/70 00:00 | |
| irrelevant | 01/01/70 00:00 | |
| Thanks! | 01/01/70 00:00 | |
| It will be easier... | 01/01/70 00:00 | |
| Plotted data and checked pattern? | 01/01/70 00:00 | |
| external amplifier working good | 01/01/70 00:00 | |
| Choosing an opamp | 01/01/70 00:00 | |
pretty cool! | 01/01/70 00:00 |