09 | Keysight | M9111A PXIe High-Speed Source/Measure Unit - Data Sheet
Output Quadrant Characteristic
Voltage Priority Mode
Current Priority Mode
Measurement Accuracy and Resolution
(with shorter measurement intervals)
The following table shows changes to the short-term measurement accuracy and resolution with various number of power line cycle
(NPLC) measurement settings. Changes are due to the A-to-D converter’s noise performance. The table’s baseline is 1 NPLC with no
added noise. To determine the measurement accuracy at shorter averaging intervals, simply add the noise value to the fixed accuracy
value in the specification table.
NPLC @ 60 Hz:
Time:
0.0003
5.1E-6
1
0.003
51.2E-6
10
0.006
102.4E-6
20
0.010
169E-6
33
0.031
512E-6
100
0.06
0.1
0.6
1
998.4E-6
195
1.7E-3
325
10E-3
1953
16.7E-3
3255
7.6E-6
18.6
Averaged points:
3A range noise:
Resolution (bits):
1mA range noise:
Resolution (bits):
305.2E-6
13.3
119.5E-6
14.6
73.8E-6
15.3
72.8E-6
15.3
34.8E-6
16.4
30.3E-6
16.6
19.2E-6
17.3
7.8E-6
18.5
1.1E-6
9.8
290.6E-9
11.7
193.0E-9
12.3
191.0E-9
12.4
45.8E-9
14.4
28.7E-9
15.1
18.0E-9
15.8
3.2E-9
18.3
2.9E-9
18.4
100 uA range noise: 25.0E-9
Resolution (bits): 12.0
20.9E-9
12.2
17.0E-9
12.5
10.3E-9
13.2
5.9E-9
14.1
3.2E-9
14.9
2.3E-9
15.4
547.5E-12
17.5
417.9E-12
17.9
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