Noise
Voltage noise at different sampling frequency:
Actual reading from Bar graph spectrum and Raw wave power
connect 10 K ohm and 100 K ohm resistance
256 point FFT
120 Hz sampling (0..30 Hz)
10 K ohm -> 0.2 µV par spectrum (raw wave 1.4 µVp-p)
100 K ohm -> 0.35 µV par spectrum (raw wave 2.2 µVp-p)
480 Hz sampling (0..120 Hz)
10 K ohm -> 0.3 µV par spectrum (raw wave 2.4 µVp-p)
100 K ohm -> 0.6 µV par spectrum (raw wave 4.5 µVp-p)
960 Hz sampling (0..240 Hz)
10 K ohm -> 0.45 µV par spectrum (raw wave 3.5 µVp-p)
100 K ohm -> 0.9 µV par spectrum (raw wave 6 µVp-p)
1920 Hz sampling (0..480 Hz)
10 K ohm -> 0.65 µV par spectrum (raw wave 4.5 µVp-p)
100 K ohm -> 1.1 µV par spectrum (raw wave 8 µVp-p)
