N6745B Datasheet, PDF (48/57 Pages) Keysight Technologies – DC Power Modules

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.
N6785A and N6786A
NPLC @ 60 Hz: 0.0003
Time: 5.1E-6
Averaged points:
1
20V range noise: 2.9E-3
Resolution (bits): 12.7
8A range noise: 1.2E-3
Resolution (bits): 12.7
100mA range noise: 13.5E-6
Resolution (bits): 12.8
1mA range noise: 1.4E-6
Resolution (bits): 9.4
0.003
51.2E-6
10
1.3E-3
13.9
552.2E-6
13.8
7.1E-6
13.7
594.3E-9
10.7
0.006
102.4E-6
20
1.0E-3
14.2
409.7E-6
14.2
5.4E-6
14.1
306.2E-9
11.6
0.010
169E-6
33
1.0E-3
14.2
313.8E-6
14.6
4.1E-6
14.5
191.0E-9
12.3
0.031
512E-6
100
394.2E-6
15.6
198.9E-6
15.2
2.5E-6
15.2
67.7E-9
13.8
0.06
998.4E-6
195
298.5E-6
16
138.0E-6
15.8
1.7E-6
15.8
38.8E-9
14.6
0.1
1.7E-3
325
260.6E-6
16.2
94.4E-6
16.3
1.3E-6
16.2
23.8E-9
15.3
0.6
10E-3
1953
98.1E-6
17.6
45.6E-6
17.4
644.2E-9
17.2
8.2E-9
16.8
1
16.7E-3
3255
69.8E-6
18.1
43.5E-6
17.4
471.5E-9
17.6
6.9E-9
17.1
N6781A, N6782A and N6784A
NPLC @ 60 Hz: 0.0003
0.003
Time: 5.1E-6 51.2E-6
Averaged points:
1
10
20V range noise: 2.3E-3
1.2E-3
Resolution (bits): 13
14
1V range noise: 186.6E-6 90.3E-6
Resolution (bits): 12.3
13.4
100mV range noise: 38.9E-6 20.7E-6
Resolution (bits): 11.3
12.2
3A range noise: 480.3E-6 206.4E-6
Resolution (bits): 12.6
13.8
100mA range noise: 14.1E-6 8.7E-6
Resolution (bits): 12.8
13.4
1mA range noise: 1.8E-6 798.7E-9
Resolution (bits): 9.1
10uA range noise: 15.9E-9
10.2
18.0E-9
Resolution (bits): 9.2
9.1
0.006
102.4E-6
20
993.7E-6
14.2
57.0E-6
14
12.5E-6
12.9
159.7E-6
14.2
6.4E-6
13.9
363.1E-9
11.4
20.3E-9
8.9
0.010
169E-6
33
894.8E-6
14.4
45.5E-6
14.4
10.5E-6
13.2
120.5E-6
14.6
4.4E-6
14.4
248.5E-9
11.9
15.4E-9
9.3
0.031
512E-6
100
533.4E-6
15.1
26.7E-6
15.1
5.9E-6
14
71.0E-6
15.3
2.5E-6
15.2
74.1E-9
13.7
11.0E-9
9.8
0.06
998.4E-6
195
297.5E-6
16
22.1E-6
15.4
5.1E-6
14.2
48.3E-6
15.9
2.2E-6
15.4
44.8E-9
14.4
4.8E-9
11
0.1
0.6
1
1.7E-3 10E-3 16.7E-3
325
1953
3255
276.6E-6 87.4E-6 69.6E-6
16.1
17.7
18.1
19.8E-6 7.1E-6 4.8E-6
15.6
17.1
17.6
5.0E-6 3.9E-6 3.4E-6
14.2
14.6
14.8
41.4E-6 16.8E-6 18.5E-6
16.1
17.4
17.2
1.5E-6 858.1E-9 573.3E-9
16
16.8
17.4
27.3E-9 8.5E-9 6.8E-9
15.1
16.8
17.1
3.3E-9 752.2E-12 456.3E-12
11.5
13.7
14.4
N6731B-N6786A DC Power Modules
N6700B-N6705B Mainframes
48
Specifications Guide