| ??? 07/08/06 01:45 Read: times |
#119840 - Delta sigma adcs Responding to: ???'s previous message |
Because the adc in the analog devices part is sigmadelta converter, it takes a few conversion cycles to aquire the new value when you change channels. This is a design feature that they dont exactly tell you as you`re supposed to know this. In my application I scan 4 loadcells, I wait 3 cycles after each multiplexer change before using the value as read. This may explain what you are seeing. Such is life with averaging type a to d conversion! This is not limited to these AD parts either.
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| Topic | Author | Date |
| ADuC845: Changing ADC Channel slows down | 01/01/70 00:00 | |
| Delta sigma adcs | 01/01/70 00:00 | |
| Somewhat related question | 01/01/70 00:00 | |
| AD parts | 01/01/70 00:00 | |
| DMA can affect precision? | 01/01/70 00:00 | |
| Even _code_ can affect precision ... | 01/01/70 00:00 | |
Exactly! | 01/01/70 00:00 | |
| Gotcha | 01/01/70 00:00 | |
| The answer you seek ... | 01/01/70 00:00 | |
| Thanks! | 01/01/70 00:00 |