Peak to Peak Ripple

Taking the lowest and highest values

cat output_fast.txt | sort | sed -n '1p;$p'

We take the difference and then convert it to a voltage

( (211776 - 207842) * 4.092 ) / (2^24) * 1000 * 1000 = 959.51128 uV = ~1mV

Captures

A_in

LDO 5V

V_ref

12V