| ??? 04/13/06 13:32 Read: times |
#114207 - in a perfect world Responding to: ???'s previous message |
This looks negligible, but represents an impedance of only 90 Ohm at 100MHz and of only 9 Ohm at 1GHz! So, still very much of the nasty common mode noise is injected into the analog ground!
in a perfect world optoisolators would isolate, ground would have no impedance, there would be no min and max in the datasheets and ...... Ladies and Gentlemen, the world is not perfect, assuming so will lead to faulty designs. Erik |
| Topic | Author | Date |
| analog ground of ADC | 01/01/70 00:00 | |
| Re: analog ground of ADC | 01/01/70 00:00 | |
| Its all black magic! | 01/01/70 00:00 | |
| Adding to the confusion | 01/01/70 00:00 | |
| Think about it.... | 01/01/70 00:00 | |
| Article isn't very helpful... | 01/01/70 00:00 | |
| In a nutshell | 01/01/70 00:00 | |
| what about the old "standard" | 01/01/70 00:00 | |
| Re: what about the old "standard" | 01/01/70 00:00 | |
| often the only viable method | 01/01/70 00:00 | |
| Looks great, but... | 01/01/70 00:00 | |
| in a perfect world | 01/01/70 00:00 | |
| what about ... | 01/01/70 00:00 | |
| Re what about... | 01/01/70 00:00 | |
what about ? | 01/01/70 00:00 | |
| Again, it's not helpful | 01/01/70 00:00 |