| ??? 01/07/05 13:10 Read: times |
#84520 - digital - analog -digital Responding to: ???'s previous message |
And regarding the Eagle's eye - it is very true that nobody ( maybe except an Eagle ) can spot a 0.1% difference on an analog meter! But the display IS digital and hence the concern.
Raghu, Going from digital (pulses) to analog (LM331) to digital (a/d) will introduce drift as an issue. For the precision of 0.1% I would abandon all analog. If such precision is required, you should be able to charge enough to do the right thing with a CPLD and a '51. Erik |
| Topic | Author | Date |
| LM331 Vs MCU | 01/01/70 00:00 | |
| Accuracy ? | 01/01/70 00:00 | |
| Re | 01/01/70 00:00 | |
| Accuracy | 01/01/70 00:00 | |
| ReRe | 01/01/70 00:00 | |
| HUH ? | 01/01/70 00:00 | |
| V->F->V | 01/01/70 00:00 | |
| Pitfalls | 01/01/70 00:00 | |
| What I wanted - Rob Klein | 01/01/70 00:00 | |
| You're welcome Raghu :o) | 01/01/70 00:00 | |
| digital - analog -digital | 01/01/70 00:00 | |
| eagleeyes | 01/01/70 00:00 | |
| Re | 01/01/70 00:00 | |
| LM331 can well be used | 01/01/70 00:00 | |
Reassuring....Kai | 01/01/70 00:00 |