Hi,
I'm connecting the ADS1256 using REF1933AIDDCT as the reference (VREFP) at 3.3v and AINCOM at 1.65v. VREFN is connected to AGND. AVDD is 5v (feeding from RaspberryPi 5v pin) all ground is connected eventually to RaspberryPi ground pins.
Settings for ADS1256 are PGA=2, SPS=2000. I use only 3 single ended channels, cycling through them as described on page 21 (fig 19) in the manual.
Status register is ACAL=Enabled, Bufen=Disabled.
1. Is there a way to estimate the ENOB for that configuration?
Cheers,
Ran