I have made modifications recommended in this doc. The changes made are:
- R24: 19.6k to 4.99k Ohms
- R20: 19.6k to 4.99k Ohms
- R23: 787 to 499 Ohms
- Removed C16.
I took transfer function measurements, fitted them with zeros and poles and plotted it against the zero model of the circuit. The zeros and poles we intended to shift are matching well with 3Hz zero and 30 Hz pole. The later pole at 1500 Hz is at a higher value from what is predicted by zero.
I also took noise measurements and they are in good agreement with the noise predicted by zero.
Edit Wed Feb 10 15:14:13 2021 :
THE NOISE MEASUREMENT WAS WRONG HERE. SEE 40m/15799. |