2 kW Characteristics
N7970A N7971A N7972A N7973A N7974A
Current programming & measurement
TempCo
2
High range:
Low range:
0.0029%+500µA
0.0040%+160µA
0.0031%+250µA
0.0041%+80µA
0.0035%+120µA
0.0045%+40µA
0.0032%+80µA
0.0042%+24µA
0.0032%+60µA
0.0041%+18µA
Resistance programming
TempCo: 0.0043% 0.0045% 0.0049% 0.0046% 0.0045%
Over-Voltage Protection
Maximum setting:
Response time:
3
Accuracy:
10.8 V
<30 µs
0.03% +1 mV
24 V
<30 µs
0.03% +2 mV
48 V
<30 µs
0.03% +4 mV
72 V
<30 µs
0.03% +6 mV
96 V
<30 µs
0.03% +8 mV
Voltage measurement noise (peak):
4
2 mV 3.5 mV 7 mV 10 mV 14 mV
Current measurement noise (peak)
4
High range:
Low range: 75 mA
50 mA
45 mA
30 mA
18 mA
12 mA
12 mA
6 mA
7 mA
3 mA
Common mode current
5
CC rms:
CC peak-to-peak:
2 mA
15 mA
1 mA
10 mA
1 mA
10 mA
1 mA
10 mA
2 mA
10 mA
Voltage up-
programming time
6
10% to 90%:
Settling time:
8
0.5 ms
1 ms
Voltage down-
programming time
7
90% to 10%:
Settling time:
8
0.35 ms
0.8 ms
Current up- and down-
programming time
9
10% to 90%:
90% to 10%:
2.5 ms
2.5 ms
Output-on delay time
Voltage priority:
with Relay Option on:
Current priority:
with Relay Option on:
12 ms
38 ms
14 ms
46 ms
Line regulation
Voltage:
Current:
< 10 µV
< 10 µA
Small signal bandwidth
Voltage programming:
10
Current programming:
11
Voltage measurement:
Current measurement:
DC to 1 kHz (-1dB);DC to 2 kHz (-3dB)
DC to 70 Hz (-1dB);DC to 120 Hz (-3dB)
DC to 14 kHz (-1dB);DC to 25 kHz (-3dB)
DC to 14 kHz (-1dB);DC to 25 kHz (-3dB)
Keysight N6900/N7900 Series Operating and Service Guide 51
1 Quick Reference