Timeline for Mapping different resolution ADC to DAC
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
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| Apr 20, 2022 at 14:09 | answer | added | Andy aka | timeline score: 2 | |
| Apr 20, 2022 at 11:57 | comment | added | user16324 | It all depends on your needs, which you know and we don't. If you are handling large signals, ignore the LSBs. If you are handling small signals, ignore the MSBs. If you are handling both ... your choice (which you can dynamically change, if necessary) | |
| Apr 20, 2022 at 9:02 | history | edited | JRE | CC BY-SA 4.0 |
added 2 characters in body
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| Apr 20, 2022 at 8:06 | answer | added | Neil_UK | timeline score: 2 | |
| Apr 20, 2022 at 6:52 | comment | added | Shannon | I see, my DAC has a Vref of +/-18V while the ADC has +/-2.5V. This means I would have to multiply the ADC value to be mapped to the DAC range, correct? | |
| Apr 20, 2022 at 6:01 | comment | added | user57037 | Assuming there is no change of VREF (ADC and DAC have same VREF) then discarding the LSB is exactly what you want to do. Full scale on the DAC is VREF, and full scale on the ADC is VREF. 2^24 - 1 is VREF on the ADC, and 2^16-1 is VREF on the DAC. | |
| Apr 20, 2022 at 5:49 | comment | added | D.A.S. | Decimation = truncating , what dynamic range, rate of change, SNR and sampling rate might determine if a better algorithm like sigma-delta conversion or logarithmic compression or something else is needed. Or not. | |
| Apr 20, 2022 at 5:26 | answer | added | Justme | timeline score: 2 | |
| Apr 20, 2022 at 5:09 | history | asked | Shannon | CC BY-SA 4.0 |