| ??? 10/17/05 12:24 Read: times |
#102485 - sigma/delta instead of succsessive-appr. Responding to: ???'s previous message |
Adam said:
How to get the real resolution of a data acquisition card ?
I want to make a 16-bit data acquisition card with MAX195(whoes resolution is 16 bits), but I do not know how to identify the resolution of a DA card! It's extremely difficult to get real 16bit resolution when using a poor anti-aliasing filter at input of ADC, and designing a proper one is highly sophisticated. So, I would highly recommend you to use a conversion scheme which provides huge oversampling, like sigma/delta converters do. Kai |
| Topic | Author | Date |
| the resolution of ADC! | 01/01/70 00:00 | |
| well | 01/01/70 00:00 | |
| thank you sir! | 01/01/70 00:00 | |
| App Notes | 01/01/70 00:00 | |
| sigma/delta instead of succsessive-appr. | 01/01/70 00:00 | |
| Sampling rate is 85k times the signal's | 01/01/70 00:00 | |
oversampling is not enough | 01/01/70 00:00 | |
| the "resolution" is easy, the "precison | 01/01/70 00:00 | |
| Yes, they are different! | 01/01/70 00:00 | |
| Use a known totally noise free stable so | 01/01/70 00:00 |