SC5 Signal Conversion Performance Measurements
69
Noise 0.1 Hz – 10 Hz
The low-frequency noise of the SC5 fast analog output is measured with the same set-up as used for AO1 – AO8.
The following settings were used for the measurement:
DMM
Measured output: FAST AO Mode of operation: Digitizer, AC volts
Output amplitude: 0 V Range: 100 mV
Sample rate: 100 S/s
Resolution: 22 bit
The following graph shows a typical trace for the output noise in the 0.1 to 10 Hz range:
Figure 52: SC5 fast output noise 0.1 - 10 Hz.
Typical RMS and peak-to-peak noise values in the 0.1 Hz to 10 Hz range are listed below:
RMS noise p-p noise
< 590 nV < 2.3 µV
Noise 10 Hz – 300 kHz
The noise of the fast analog output of the SC5 fast output above 10 Hz is measured with the same set-up as used for
AO1 –AO8. The upper frequency limit is given by the analog bandwidth of the multimeter.
The following settings were used for the measurement:
0 2 4 6
8 101
3 5 7 9
Time [s]
Output Noise Voltage [nV]
2000
1600
1200
800
400
0
-400
-800
-1200
-1600
-2000
Output range: ±10 V
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