There is a good new that we could DIN REF3440 !
And there have one thing need your support!
1. What the low frequency noise(f=0.1Hz to 10Hz) test equipment which we used. In REF3440 DS, it used below waveform to do the measurement and is 2uV/div. I assume is a high accuracy oscilloscope.
2.Please also help share the high frequency noise(f=10Hz to 10kHz) test equipment which we used, thanks.