AdV-DET (Local controls for all benches)mwas, gouaty - 15:41 Tuesday 16 October 2018 (43098)
Print this reportCheck on SDB1 local controls driving noiseDuring the last intervention inside the SDB1 tower we took a few minutes of data (Sep 14, 07:44 UTC) with the output of the local control driving electronics connected to the ADC.
Figure 1 shows that the noise level is 2e-7 V/rtHz, which is 1.5 factor lower than the DAC noise of 3e-7 V/rtHz. It is a bit surprising, but maybe half of the DAC voltage is actually used by the driving electronic box.
There is also 1/f extra noise, which probably comes from a large offset on the correction (~2V).