Agilent Technologies N2792A User manual

N2792A and N2793A
Differential Probes
User’s Guide

2
Manual Part Number
N2792-97002
December 2013
Notices
© Agilent Technologies, Inc. 2009 - 2013
Agilent Technologies, Inc
Oscilloscope Products Division
This product complies with the WEEE Directive
(2002/96/EC) marking requirements. The affixed
label indicates that you must not discard this elec-
trical/electronic product in domestic household
waste. Product Category: With reference to the
equipment types in the WEEE Directive Annex I, this product is
classed as a “Monitoring and Control instrumentation” product.
Do not dispose in domestic household. To return unwanted prod-
ucts, contact your local Agilent office, or refer to www.agi-
lent.com for more information.
This symbol indicates the Environmental Pro-
tection Use Period (EPUP) for the product’s
toxic substances for the China RoHS require-
ments.
Restricted Rights Legend
If software is for use in the performance of a U.S. Government
prime contract or subcontract, Software is delivered and
licensed as "Commercial computer software" as defined in DFAR
252.227-7014 (June 1995), or as a "commercial item" as
defined in FAR 2.101(a) or as "Restricted computer software" as
defined in FAR 52.227-19 (June 1987) or any equivalent
agency regulation or contract clause. Use, duplication or disclo-
sure of Software is subject to Agilent Technologies’ standard
commercial license terms, and non-DOD Departments and
Agencies of the U.S. Government will receive no greater than
Restricted Rights as defined in FAR 52.227-19(c)(1-2) (June
1987). U.S. Government users will receive no greater than Lim-
ited Rights as defined in FAR 52.227-14 (June 1987) or DFAR
252.227-7015 (b)(2) (November 1995), as applicable in any
technical data.
Warranty
The material contained in this document is provided “as is,” and
is subject to being changed, without notice, in future editions.
Further, to the maximum extent permitted by applicable law,
Agilent disclaims all warranties, either express or implied, with
regard to this manual and any information contained herein,
including but not limited to the implied warranties of merchant-
ability and fitness for a particular purpose. Agilent shall not be
liable for errors or for incidental or consequential damages in
connection with the furnishing, use, or performance of this docu-
ment or of any information contained herein. Should Agilent and
the user have a separate written agreement with warranty terms
covering the material in this document that conflict with these
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trol.
Safety Notices
CAUTION. A CAUTION notice denotes a hazard.
It calls attention to an operating procedure, prac-
tice, or the like that, if not correctly performed or
adhered to, could result in damage to the product
or loss of important data. Do not proceed beyond a
CAUTION notice until the indicated conditions are
fully understood and met.
WARNING. A WARNING notice denotes a haz-
ard. It calls attention to an operating procedure,
practice, or the like that, if not correctly per-
formed or adhered to, could result in personal
injury or death. Do not proceed beyond a WARN-
ING notice until the indicated conditions are fully
understood and met.

3
Contents
Introduction 4
Accessories 6
Using the N2792A Probe 9
Using N2793A Probe 11
Safety Information 15
Specifications and Characteristics 16
Performance Plots (N2792A Probe) 19
Performance Plots (N2793A Probe) 23
N2792A Performance Verification Procedures 27
N2793A Performance Verification Procedures 31

4
Introduction
The N2792A 200 MHz and N2793A 800 MHz differential probes provide the
superior high- speed differential signal probing required by today’s
high- speed power measurements, automotive bus measurements, and
high- speed digital system designs. The N2792A and N2793A probes offer a
10:1 attenuation ratio, allowing them to be used for a broad range of
applications. These differential probes have an input resistance of 1 MW
(N2792A) and 200 kW (N2793A) and both feature low input capacitance to
minimize circuit loading (7 pF for N2792A and 2 pF for N2793A). The
N2792A and N2793A probes are compatible with any oscilloscope equipped
with 50W BNC inputs. They can be powered by any USB port on your
oscilloscope or computer, or by an internal battery (one 9V battery
included with each probe).
Figure 1 Probes (Accessories Not Shown)
Oscilloscope Compatibility
To be compatible with the N2792A and N2793A probes, the oscilloscope
must have a 50Ωinput and be ground referenced.

5
Handling the Probe
Handle the probe with care and refer to the safety notices in this manual.
Note that the probe cable is a sensitive part of the probe and, therefore,
you should be careful not to damage it through excessive bending or
pulling. You should also avoid any mechanical shocks to this product in
order to guarantee accurate performance and protection.
Cleaning the Probe
Disconnect the probe from the oscilloscope and clean the probe with a soft
cloth dampened with a mild soap and water solution. Make sure that the
probe is completely dry before reconnecting it to an oscilloscope. Avoid
using abrasive cleaners and chemicals containing benzene or similar
solvents.
Inspecting the Probe
■Inspect the shipping container for damage.
Keep the damaged shipping container or cushioning material until the
contents of the shipment have been checked for completeness and the
probe has been checked mechanically and electrically.
■Check the accessories.
■If the contents are incomplete or damaged, notify your Agilent
Technologies Sales Office.
■Inspect the instrument.
■If there is mechanical damage or defect, or if the probe does not operate
properly or pass calibration tests, notify the Sales Office.
If the shipping container is damaged, or the cushioning materials show
signs of stress, notify the carrier as well as the Sales Office. Keep the
shipping materials for the carrier’s inspection. The sales office will arrange
for repair or replacement at Agilent Technologies’ option without waiting
for claim settlement.

6
Accessories
N2792A
Table 1 lists the accessories included with the N2792A probes.
Replacements can be ordered with the N2792- 68700 replacement kit. The
quantity of each accessory in the kit is the same as listed in the table and
originally provided with the probe. The battery is not included in the kit.
Figure 2 N2792A Supplied Accessories
Table 1 N2792A Accessories
Accessory
Qty
Supplied
Hook Clip (red) 1
Hook Clip (black) 1
Alligator Clip (red) 1
Alligator Clip (black) 1
USB Power Cord (2m) 1
9V Battery 1

7
N2793A
Table 2 lists the accessories included with the N2793A probes.
Replacements can be ordered with the N2793- 68700 replacement kit. The
quantity of each accessory in the kit is the same as listed in the table and
originally provided with the probe. The battery is not included in the kit.
Figure 3 N2793A Supplied Accessories

8
Table 2 N2793A Accessories
Accessory
Qty
Supplied
Pincer Clip (red) 1
Pincer Clip (black) 1
Micro IC Clip (red) 1
Micro IC Clip (black) 1
Extension Lead, 0.8 mm J-P, 5 cm (red) 1
Extension Lead, 0.8 mm J-P, 5 cm (black) 1
Extension Lead, 0.8 mm J-P, 10 cm (red) 1
Extension Lead, 0.8 mm J-P, 10 cm (black) 1
Dual Signal Pin, 12.8 mm 2
Dual Signal Pin, 16.8 mm 2
Single Signal Pin, 0.8 mm 6
Variable Pitch Signal Pin 2
DC Blocking Capacitor 2
USB Power Cord (2m) 1
9V Battery 1

9
Using the N2792A Probe
Before using the probe, you must either
install the supplied 9V battery or plug in the
supplied USB power cord. The USB power
cord can be connected either to the USB
port on a computer or the oscilloscope. To
install the battery, slide open the battery
compartment located on the back side of the
probe housing.
Figure 4 Location of Battery Compartment and USB Power Input
The probe’s BNC output connector connects to the channel input of the
oscilloscope. The oscilloscope must have a 50Winput and be ground
referenced.
WARNING Must be Grounded. Before making connections to the input leads of this probe,
ensure that the output BNC connector is attached to the BNC channel input of the
oscilloscope and the oscilloscope is properly grounded.
CAUTION To protect against electrical shock, use only the accessories supplied with this probe or in
the accessory kit.
CAUTION This probe is to carry out differential measurements between two points on the circuit under
test. This probe is not for electrically insulating the circuit under test and the measuring
instrument.

10
NOTE When battery life has expired, remove the battery. Observe the WEEE label on the battery
and dispose of properly.
Hook and Alligator Clips
Before you can use the N2792A probe, gently push the supplied hook clips
or alligator clips onto the probe leads as shown in Figure 5. Use the hook
clips to clamp onto smaller components and the alligator clips to clamp
onto thicker gauge devices.
Figure 5 Inserting the Supplied Clips