SC5 Signal Conversion Performance Measurements
70
DMM
Measured output: FAST AO Mode of operation: Digitizer, AC volts
Output amplitude: 0 V Range: 100 mV
Sample rate: 1.8 MS/s
Resolution: 10 bit
The following graph shows a typical trace for the output noise in the 10 Hz to 300 kHz range:
Figure 53: SC5 fast output noise 10 Hz - 300 kHz. The vertical axis is identical to that of the measurement for the analog
outputs above.
Typical RMS and peak-to-peak noise values in the 10 Hz to 300 kHz range are listed below:
RMS noise p-p noise
< 12 µV < 105 µV
Offset and gain error
The offset of the SC5 fast output when set to 0 V is measured with the output connected directly to a National
Instruments 4071 PXI digital multimeter operated in DMM mode (7.5 digits). The maximum absolute offset
compared to the DMM is shown in the table below.
Output voltage Max. absolute offset
0 V ± 800 µV
Table 21: Maximum absolute offset of the SC5 fast analog output.
Gain error is measured at output voltages on -10 V and +10 V.
0 0.02 0.04 0.06 0.08 0.10.01 0.03 0.05 0.07 0.09
50
40
30
20
10
0
-10
-20
-30
-40
-50
Time [s]
Output Noise Voltage [μV]
Output range: ±10 V
To Next Page
Loading...
Need help?
General