Why would you want to? I don't see what you would be gaining by doing that.
It's because of a Matlab script whitch ran with an older daq pad with a 12 bit resolution.
I have to migrate it to a newer daq pad and had also to rewrite parts of it as i needed a new interface in Matlab (session based interface as legacy based interfaced is no longer supported.
Here is a screenshot of a Voltage measurement. The blue curve is from the new daq pad and looks quite erratic. I think the reason might be the adc.
Maybe you have some ideas
This doesn't look like an ADC issue. It looks more like a noise issue. What are you trying to measure? What is your sample rate? Do you have things properly grounded?
I want to measure the voltage of a window motor.
I tried different sample rates, but they all look similar to the screenshot i posted. There the sample rate is 10k S/s.
I hope the everything is properly grounded
Try a smoothing algorithm. You can do it yourself, use a low pass filter, or use Savitsky-Golay smoothing.
If you read the raw binary from the DAQ device, you could manipulate the bits to eliminate the 4 LSB.