Datasheet

N6731B-N6792A DC Power & Load Modules
N6700C-N6705C Mainframes
46 Specifications Guide
Supplemental Characteristics (continued)
N6781A / N6782A
N6784A
N6785A / N6786A
Current Measurement Small Signal Bandwidth
(continued)
–3 dB typical with seamless ranging On
8 A range
3 A range
100 mA range
1 mA range
-
DC to 26 kHz
DC to 26 kHz
DC to 10 kHz
-
-
-
-
DC to 26 kHz
-
DC to 27 kHz
DC to 10 kHz
–1 dB typical with seamless ranging Off
8 A range
3 A range
100 mA range
1 mA range
10 μA range
-
DC to 16 kHz
DC to 16 kHz
DC to 6 kHz
DC to 400 Hz
-
DC to 16 kHz
DC to 16 kHz
DC to 6.5 kHz
DC to 400 Hz
DC to 16 kHz
-
DC to 17 kHz
DC to 6 kHz
-
–1 dB typical with seamless ranging On
8 A range
3 A range
100 mA range
1 mA range
-
DC to 14 kHz
DC to 14 kHz
DC to 6 kHz
-
-
-
-
DC to 15 kHz
-
DC to 15 kHz
DC to 16 kHz
Current Priority Transient Characteristic:
(with 4.25' twisted pair load leads)
8 A range with a 5-15 V step
Current settling band
Recovery time
-
-
-
-
40 mA
5 μs
3 A range with a 1-4 V step
Current settling band
Recovery time
5 mA
12 μs
5 mA
12 μs
-
-
1 A range with a 0.5-0 V step
Current settling band
Recovery time
10 mA
12 μs
10 mA
12 μs
-
-
Common Mode Current from 20 Hz – 20 MHz:
(with negative output connected to chassis)
CC peak-to-peak < 1 mA < 1 mA < 1.5 mA
CC rms < 100 μA < 100 μA < 150 μA
Remote Sense Capability:
Outputs can maintain specifications with up to a 1-volt drop per load lead.
The load lead drop reduces the maximum available voltage at the load.
Parallel Operation:
NOTE 4
Identically rated outputs can be operated directly in parallel in Current Priority mode only.
Operating units in series is not available.
Minimum Output Turn-on Delay:
(Time from when any Output On command is received until the output starts turning on.)
Turn-off mode set to Low impedance 25.6 ms 25.6 ms 25.6 ms
Turn-off mode set to High impedance 24.7 ms 24.7 ms 24.7 ms
1
Applies to N6781A and N6785A only
2
For N6785A and N6786A applies with a 0 - 4 V step.
3
Response time applies from the occurrence of the over-voltage condition to the start of output shutdown.
4
In CV priority mode, uneven current sharing while paralleling prevents using the lower current measurement ranges
and will also cause degradation in transient response performance.