| ??? 04/17/06 19:34 Read: times |
#114416 - what about ? Responding to: ???'s previous message |
Ashish Pradhan said:
Hi Andy,
You had previouslly mentioned in a thread about your project on Multiple ADCs and DACs: http://www.8052.com/forum/read.phtml?id=88566 Yeah, and nobody really had an answer. :) I also had a similar project in which I had to use 16 ADCs on a single board. I treated them all as an Analog part and used a common ground plan for all of them. The I/O signals from ADCs were carried to the digital section using the i-couplers. The Analog and Digital planes were not connected on the board, but were connected near the power supply at the Star point. Your concept seems to be what Analog Devices recommends, and I tend to believe it's the right way to go. What scheme did you use in your previous project ? That design I mention was not mine; the boards were done by someone else, and there were many jumpers to configure how the different grounds were connected. The jumpers made things less than ideal, IMHO. -a |
| 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 |