Specifications

Specifications
(at 0° to 55°C unless
otherwise specified)
N6976A N6977A N7976A N7977A
Number of outputs 1 1 1 1
GPIB, LAN, USB Yes Yes Yes Yes
DC ratings
Voltage source 0 to 120 V 0 to 160 V 0 to 120 V 0 to 160 V
Current source 0 to 16.7 A 0 to 12.5 A 0 to 16.7 A 0 to 12.5 A
Current sink 10% rating -1.67 A -1.25 A -1.67 A -1.25 A
Current sink 100% rating
1
-16.7 A -12.5 A -16.7 A -12.5 A
Power
2
2000 W 2000 W 2000 W 2000 W
Output ripple and noise
3
CV rms 2 mV 3 mV 2 mV 3 mV
CV peak to peak 30 mV 30 mV 30 mV 30 mV
Load regulation
Voltage 4 mV 4 mV 4 mV 4 mV
Current 1 mA 0.8 mA 1 mA 0.8 mA
Voltage programming & measurement accuracy
4, 5, 6
Lead drop ≤1 V max 0.03% + 17 mV 24 mV 11 mV 14 mV
Lead drop ≤25% of V rating 0.03% + 23 mV 32 mV 17 mV 22 mV
Current programming & measurement accuracy
4
0.1% + 5 mA 0.1% + 4 mA 0.04% + 2.5 mA 0.04% + 2 mA
Current measurement low range accuracy
N/A N/A 0.05% + 0.4 mA 0.05% + 0.25 mA
Transient response
7
Recovery time 100 µs 100 µs 100 µs 100 µs
Settling band 300 mV 400 mV 300 mV 400 mV
75
APS N7907A rack mount kit
The N7907A rack mount kit can
be used for all N6900 and N7900
power supplies, regardless if they
are 1 kW or 2 kW form factors. It
can also be used for mounting the
N7909A. N7907A APS rack mount
kit is needed for every APS power
supply or N7909A dissipater that
you would like to mount. The N7907A
is intended for use in a 19-inch EIA
rack cabinet. APS power supplies
and power dissipater units can be
mounted directly above or below
each other without any worry of
heat problems. For installation
instructions refer to the APS
user manual.
APS N7908A black box recorder
Much like a flight data recorder,
theN7908Ablackboxrecorder(BBR)
runs continually in the background,
independent of what the power sup-
ply is doing. When the power supply
ison,theBBRisrecordingpower
events and storing measurements
innon-volatilememory.TheBBRcan
be set for either a 24-hour record or a
10-day record period. In the 24-hour
mode, measurements are made at
a rate of 100 per second, and in the
10-day mode they are made at a rate
of10persecond.TheBBRdatacan
be accessed via the free APS power
assistant software (see Figure 8).
TheBBRisauser-installablehard-
ware option, and it works in all APS
N6900 and N7900 power supplies.
YoucanpurchasetheN7908ABBR
with an APS power supply or buy it
later and install it in your existing
APSpowersupply.TheBBRhard-
ware board plugs into the bottom
of an APS power supply, as shown
in Figure 9.
Single Output: 1 & 2 KW GPIB, LAN (LXI Core), USB
(Continued)
More detailed specifications at www.agilent.com/find/N6900
www.agilent.com/find/N7900
Advanced Power System DC power supplies overcome the toughest power test challenges
Notes:
1
Two power dissipators required to sink up to 100% of rated current; one power dissipator sinks up to
50% of rated current.
2
Maximum continuous power available is derated at 1% of rating per degree C from 40°C to 55°C
3
From 20 Hz to 20 MHz
4
At 23°C ±5°C after a 30 minute warm-up; measurement NPLC=1; valid for 1 year
5
With resistance programming enabled, the voltage programming offset component increases by a factor of 2.1
6
Load lead drop applies to each load lead
7
Time to recover to within the settling band following a load change from 50% to 100% of full load (10 µs rise time)
Figure 8. Black box recorder data displayed
within the N7906A Power Assistant software
Figure 9. Installing the N7908A BBR hardware
option on an APS power supply