Agilent N8700 Series
System DC Power Supplies
Models: N8731A-42A (3.3 kW), N8754A-62A (5 kW)
Data Sheet
• 21 Models: 3300 W and 5000 W output power
• Up to 600 V and up to 400 A
• Small, high density 2 U package
• Built-in voltage and current measurement
• Full protection from over-voltage and over-current
• Flexible AC input voltage options
• LAN, USB, and GPIB interfaces standard
• Fully compliant to LXI Class C specification
®
Family of Affordable
Basic System DC
Power Supplies
The Agilent Technologies N8700 series
system DC power supplies give you
just the right performance — at just
the right price — in a compact (2 U)
package. This family of affordable
3300 W and 5000 W single-output
programmable DC power supplies
consists of 21 models for simple
DC power applications.
They provide stable output power,
built-in voltage and current measurement, and output voltage and current
from 8 V to 600 V and 5.5 A to 400 A.
These economical supplies offer many
system-ready features like multiple
standard I/O interfaces to simplify
and accelerate test-system development for R&D, design validation,
and manufacturing engineers in the
aerospace/defense, automotive,
component and communications
industries.
Small, high-density package
saves you rack space
The N8700 provides up to 5200 W in
a small space-saving 2 U-high, 19inch-wide package. Its air vents are
in the front and rear (not on the top
or bottom), so you can stack other
instruments directly above or below it
to save valuable rack space.
Easy front-panel operation
You can quickly and easily operate
the power supply with its rotary
knobs and buttons. Using the frontpanel controls, you can make coarse
or fine adjustments of output voltage
and current, protection settings, and
set power-on states (last setting
memory or factory default setting).
The output voltage and current are
displayed simultaneously, and LED
indicators show power supply status
and operating modes. You can lock
the front panel controls to protect
against accidental power-supply
parameter changes.
Extensive device protection
To safeguard your device from
damage, the N8700 Series power
supplies provide over-temperature,
over-current and over-voltage protection (OVP) to shut down the power
supply output when a fault condition
occurs. They also offer an undervoltage limit (UVL) that prevents
adjustment of the output voltage
below a certain limit. The combination of UVL and OVP capabilities
lets you create a protection window
for sensitive load circuitry.
Figure 1. Front panel control knobs and buttons make the N8700 easy to use
in a system and on the bench
Figure 2. The N8700's standard LAN (LXI C), USB 2.0 and GPIB interfaces enable simple
system connections
Simplify system connections
The N8700 Series power supplies
comes standard with GPIB,
Ethernet/LAN, and USB 2.0
interfaces giving you the flexibility
to use your I/O interface of choice
today and safeguard your test setup
for the future. The N8700 is fully
compliant with the LXI Class C
specification.
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Remote access and control
The built-in Web server provides
remote access and control of the
instrument via a standard browser
such as Microsoft® Internet
Explorer or Mozilla Firefox®. This
control goes above and beyond the
LXI specification, giving user's the
ability to monitor and control the
instrument from anywhere. Using
the Web browser, you can set up,
monitor and operate the N8700
remotely.
Easy system integration
and confi guration
To simplify system development,
the N8700 comes standard with
IVI-COM drivers. The N8700
supports the easy-to-use SCPI
(Standard Commands for
Programmable Instruments).
Flexible confi guration:
connect multiple units in
parallel or series
Should you need greater output
power, the N8700 series power
supplies give you the flexibility to
connect in parallel up to four identical units (same model number) for
greater output current or connect
two identical units (same model
number) in series for greater output
voltage (see output terminal isolation information).
Figure 3. N8700 series web graphical user interface for remote access and control
of the power supply
Analog programming
and monitoring
The output voltage and current can
be programmed from zero to full
scale by either an analog voltage
0 to 5 V or 0 to 10 V or by resistance
of 0 to 5 kΩ or 0 to 10 kΩ.
Flexible AC input
voltage options
The N8700 models offer flexible AC
input voltage options. Every N8700
model can be purchased with either
a 208 V 3-phase or 400 V 3-phase
voltage input option. The 3.3 kW
models have the additional option
of a 230 V single-phase AC input
voltage. Choose the one that best
fits your operating environment. They
also provide power factor correction.
Please choose carefully the AC input
voltage option for your N8700 power
supply. The AC input voltage cannot
be changed without returning the
unit to Agilent and placing a new order.
Rack mounting
The rack mount ears and handles
are provided standard with every
unit. In addition, the N5740A rack
mount slide kit makes it easy to
integrate an N8700 into a test rack by
providing all the necessary hardware
to rack mount an N8700 series power
supply in only 2 U of rack space. The
N5740A rack mount slide kit is the
same kit used with the N5700 series.
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Performance Specifi cations
N8731A N8732A N8733A N8734A N8735A N8736A
DC output ratings
1
Voltage
2
Current
Power 3200 W 3300 W 3300 W 3300 W 3300 W 3400 W
Output ripple and noise
3
CV
p-p
4
CV
rms
Load effect
CV load regulation
CC load regulation
5
6
Source effect
CV line regulation
CC line regulation
7
7
Programming accuracy
1
Voltage
0.05% + 4 mV 5 mV 7.5 mV 10 mV 15 mV 20 mV
Current
2, 8
0.1% +
Measurement accuracy
Voltage
8
Current
0.1% + 8 mV 10 mV 15 mV 20 mV 30 mV 40 mV
0.1% +
Load transient recovery time
9
Time
8 V 10 V 15 V 20 V 30 V 40 V
400 A 330 A 220 A 165 A 110 A 85 A
60 mV 60 mV 60 mV 60 mV 60 mV 60 mV
8 mV 8 mV 8 mV 8 mV 8 mV 8 mV
6.2 mV 6.5 mV 7.25 mV 8 mV 9.5 mV 11 mV
85 mA 71 mA 49 mA 38 mA 27 mA 22 mA
2.8 mV 3 mV 3.5 mV 4 mV 5 mV 6 mV
42 mA 35 mA 24 mA 18.5 mA 13 mA 10.5 mA
800 mA 660 mA 440 mA 330 mA 220 mA 170 mA
1200 mA 990 mA 660 mA 495 mA 330 mA 255 mA
<1 ms <1 ms <1 ms <1 ms <1 ms <1 ms
Notes:
1. Minimum voltage is guaranteed to maximum 0.2% of rated output voltage.
2. Minimum current is guaranteed to maximum 0.4% of rated output current.
3. 20 MHz
4. 5 Hz - 1 MHz
5. From no-load to full-load, constant input voltage. Maximum drop in remote sense.
6. For load voltage change equal to the unit voltage rating, constant input voltage
7. Single-phase and 3-Phase 208 V models: 170~265 VAC, constant load. 3-Phase 400 V models: 342~460 VAC, constant load.
8. The constant current programming readback and monitoring accuracy does not include the warm-up and load regulation thermal drift.
9. Time for output voltage to recover within 0.5% of its rated output for a load change 10 - 90% of rated output current, local sense.
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Performance Specifi cations (Continued)
N8737A N8738A N8739A N8740A N8741A N8742A
DC output ratings
1
Voltage
2
Current
Power 3300 W 3360 W 3300 W 3300 W 3300 W 3300 W
Output ripple and noise
3
CV
p-p
4
CV
rms
Load effect
CV load regulation
CC load regulation
5
6
Source effect
CV line regulation
CC line regulation
7
7
Programming accuracy
1
Voltage
0.05% + 30 mV 40 mV 50 mV 75 mV 150 mV 300 mV
Current
2, 8
0.1% +
Measurement accuracy
Voltage
8
Current
0.1% + 60 mV 80 mV 100 mV 150 mV 300 mV 600 mV
0.1% +
Load transient recovery time
9
Time
60 V 80 V 100 V 150 V 300 V 600 V
55 A 42 A 33 A 22 A 11 A 5.5 A
60 mV 80 mV 100 mV 100 mV 300 mV 500 mV
8 mV 25 mV 25 mV 25 mV 100 mV 120 mV
14 mV 17 mV 20 mV 27.5 mV 50 mV 95 mV
16 mA 13.4 mA 11.6 mA 9.4 mA 7.2 mA 6.1 mA
8 mV 10 mV 12 mV 17 mV 32 mV 62 mV
7.5 mA 6.2 mA 5.3 mA 4.2 mA 3.1 mA 2.6 mA
110 mA 84 mA 66 mA 44 mA 22 mA 11 mA
165 mA 126 mA 99 mA 66 mA 33 mA 16.5 mA
<1 ms <1 ms <1 ms <2 ms <2 ms <2 ms
Notes:
1. Minimum voltage is guaranteed to maximum 0.2% of rated output voltage.
2. Minimum current is guaranteed to maximum 0.4% of rated output current.
3. 20 MHz
4. 5 Hz - 1 MHz
5. From no-load to full-load, constant input voltage. Maximum drop in remote sense.
6. For load voltage change equal to the unit voltage rating, constant input voltage
7. Single-phase and 3-Phase 208 V models: 170~265 VAC, constant load. 3-Phase 400 V models: 342~460 VAC, constant load.
8. The constant current programming readback and monitoring accuracy does not include the warm-up and load regulation thermal drift.
9. Time for output voltage to recover within 0.5% of its rated output for a load change 10 - 90% of rated output current, local sense.
5
Supplemental Characteristics
N8731A N8732A N8733A N8734A N8735A N8736A
Output response time
Up-prog response time
Down-prog response time
10
Full-load
Down-prog response time
11
No-load
Command response time
Remote sense compensation
Over-voltage protection
Range
Output ripple and noise
12
CC rms
1300 mA 1200 mA 880 mA 660 mA 300 mA 200 mA
Programming resolution
Measurement resolution
Voltage
Current
Front panel display accuracy
(4 digits; ± 1 count)
Voltage 40 mV 50 mV 75 mV 100 mV 150 mV 200 mV
Current 2000 mA 1650 mA 1100 mA 825 mA 550 mA 425 mA
Temperature stability
Voltage
Current
Temperature coeffi cient
Voltage from rated output voltage
Current from rated output current
10
(add this to the output response time to obtain the total programming time)
(over 8 hours, after a 30 minute warm-up, with constant line, load, and temperature)
(after a 30 minute warm-up)
80 ms 80 ms 80 ms 80 ms 80 ms 80 ms
20 ms 100 ms 100 ms 100 ms 160 ms 160 ms
500 ms 600 ms 700 ms 800 ms 900 ms 1000 ms
100 ms
(typical)
2 V 2 V 2 V 2 V 5 V 5 V
0.5-10 V 0.5-12 V 1-18 V 1-24 V 2-36 V 2-44 V
0.96 mV 1.2 mV 1.8 mV 2.4 mV 3.6 mV 4.8 mV
48 mA 39.6 mA 26.4 mA 19.8 mA 13.2 mA 10.2 mA
4 mV 5 mV 7.5 mV 10 mV 15 mV 20 mV
200 mA 165 mA 110 mA 82.5 mA 55 mA 42.5 mA
100 PPM/°C 100 PPM/°C 100 PPM/°C 100 PPM/°C 100 PPM/°C 100 PPM/°C
200 PPM/°C 200 PPM/°C 200 PPM/°C 200 PPM/°C 200 PPM/°C 200 PPM/°C
100 ms
(typical)
100 ms
(typical)
100 ms
(typical)
100 ms
(typical)
100 ms
(typical)
Notes:
10. From 10% to 90% or 90% to 10% of rated output voltage, with rated, resistive load.
11. From 90% to 10% of rated output voltage.
12. For 8 V - 15 V models the ripple is measured from 2 V to rated output voltage and rated output current. For other models, the ripple is measured at
10 - 100% of rated output voltage and rated output current.
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