Specifications

39
Autoranging output – does the job
of multiple power supplies
The N8900 power supplies’
autoranging output characteristic
makes it much more flexible than
rectangular, or traditional, output
characteristic power supplies
because they expand the power
curve, giving the user more voltage
and current combinations in one
power supply. It’s like having
many rectangular power supplies
in one. For example, the 1000 V,
30 A, 10 kW model is capable of
1000 V and 10 A at 10 kW as well
as 333.3 V and 30 A at 10 kW. If
it were a rectangular output, the
specifications would be 1000 V,
10 A, 10 kW. At 333.3 V it would
only be able to output 3.3 kW, not
the 10 kW of an autoranging output.
Figures 1 and 2 show a graphical
representation of this example.
Simplify system connections
The N8900 Series power supplies
comesstandardwithGPIB,
Ethernet/LAN,USB2.0,and
analog interfaces giving you the
flexibility to use your I/O interface
of choice today and safeguard your
test setup for the future. There is
no need to worry whether or not
you are choosing the right interface
when they all come standard. The
N8900 is fully compliant with the
LXICorespecification.
Remote access and control
The built-in Web server provides
remote access and control of the
instrument via a standard browser.
This control goes above and beyond
theLXIspecification,givingusers
the ability to monitor and control
the instrument from anywhere.
Using the Web browser, you can set
up, monitor and operate the N8900
remotely.
Single-Output Autoranging 5, 10, 15 KW GPIB, LAN (LXI core), USB
(Continued)
More detailed specifications at www.agilent.com/find/N8900
Basic DC Power Supplies essential features for a tight budget
Notes: All specifications apply to >2% of voltage and >1% of current
1
20 MHz
2
20 Hz to 300 kHz
3
Time for output voltage to recover within 1% of its rated output for a load change from 10% to 90% of its
rated output current
Specifications
(at 0° to 55°C unless
otherwise specified)
N8925A N8926A N8928A N8929A N8930A
N8945A N8946A N8948A N8949A N8950A
Number of outputs 1 1 1 1 1
GPIB, LAN, USB Yes Yes Yes Yes Yes
DC ratings
Voltage 0 to 80 V 0 to 200 V 0 to 500 V 0 to 750 V 0 to 1000 V
Current 0 to 340 A 0 to 140 A 0 to 60 A 0 to 40 A 0 to 30 A
Power 10000 W 10000 W 10000 W 10000 W 10000 W
Output ripple and noise
CV peak to peak
1
320 mV 300 mV 350 mV 800 mV 1600 mV
CV rms
2
25 mV 40 mV 70 mV 120 mV 350 mV
Load effect (change from 0% to 100% of full load)
Voltage 40 mV 100 mV 250 mV 375 mV 500 mV
Current 510 mA 210 mA 90 mA 60 mA 45 mA
Programming accuracy
Voltage ≤ 80 mV ≤ 200 mV ≤ 500 mV ≤ 750 mV ≤ 1 V
Current ≤ 680 mA ≤ 280 mA ≤ 120 mA ≤ 80 mA ≤ 60 mA
Measurement accuracy
Voltage ≤ 80 mV ≤ 200 mV ≤ 500 mV ≤ 750 mV ≤ 1 V
Current ≤ 680 mA ≤ 280 mA ≤ 120 mA ≤ 80 mA ≤ 60 mA
Load transient response
Recovery time
3
≤ 1.5 ms ≤ 1.5 ms ≤ 1.5 ms ≤ 1.5 ms ≤ 1.5 ms
Figure 1. Autoranging output characteristic Figure 2. Rectangular output
characteristic