| ??? 11/16/07 09:40 Read: times |
#147058 - Then again Responding to: ???'s previous message |
Steve M. Taylor said:
....and very high crosstalk etc etc. There is a reason why you must use decent Mux chips. For AC signals above audio frequencies, yes. But if you need to switch DC only, crosstalk is not an issue anyway and the higher leakage currents of the HC muxes can be dealt with by suitable design. Rob. |
| Topic | Author | Date |
| LPC936 with External A/D | 01/01/70 00:00 | |
| Another ADC or a multiplexer | 01/01/70 00:00 | |
| Every 2 seconds | 01/01/70 00:00 | |
| what type of analog signal you are talking about? | 01/01/70 00:00 | |
| I would not, but | 01/01/70 00:00 | |
| Easy | 01/01/70 00:00 | |
| a corrective addition | 01/01/70 00:00 | |
| 74HC4051/74HC4052/74HC4053 | 01/01/70 00:00 | |
| BUT | 01/01/70 00:00 | |
| Then again | 01/01/70 00:00 | |
| Negative readings | 01/01/70 00:00 | |
| Datasheet! | 01/01/70 00:00 | |
| can you please be specific | 01/01/70 00:00 | |
| negative readings? | 01/01/70 00:00 | |
| Not allowed? | 01/01/70 00:00 | |
| Negative ADC readings - again | 01/01/70 00:00 | |
| Like this | 01/01/70 00:00 | |
| I do not understand | 01/01/70 00:00 | |
| BANG!! | 01/01/70 00:00 | |
| In General | 01/01/70 00:00 | |
| Another BANG! | 01/01/70 00:00 | |
| I assumed | 01/01/70 00:00 | |
| Looks like it cannot be done. | 01/01/70 00:00 | |
| you can | 01/01/70 00:00 | |
| Exlain | 01/01/70 00:00 | |
| OK, like this | 01/01/70 00:00 | |
| Thanks | 01/01/70 00:00 | |
or you can use opamp as non inverting summing amp. | 01/01/70 00:00 |