Tektronix P7240 User Manual
User Manual
P7240
4 GHz 5X Active Probe
071-0759-03
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.
www.tektronix.com
CopyrightE Tektronix, Inc. All rights reserved.
Tektronix products are covered by U.S. and foreign patents, issued and
pending. Information in this publication supercedes that in all previously
published material. Specifications and price change priviledges reserved.
Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077
TEKTRONIX, TEK, and SureFoot are registered trademarks, and TekConnect,
SureToe, and KlipChip are trademarks of Tektronix, Inc.
WARRANTY
Tektronix warrants that this product will be free from defects in materials and
workmanship for a period of one (1) year from the date of shipment. If any such
product proves defective during this warranty period, Tektronix, at its option,
either will repair the defective product without charge for parts and labor, or will
provide a replacement in exchange for the defective product.
In order to obtain service under this warranty, Customer must notify Tektronix of
the defect before the expiration of the warranty period and make suitable
arrangements for the performance of service. Customer shall be responsible for
packaging and shipping the defective product to the service center designated
by Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of
the product to Customer if the shipment is to a location within the country in
which the Tektronix service center is located. Customer shall be responsible for
paying all shipping charges, duties, taxes, and any other charges for products
returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate maintenance and care. Tektronix shall not
be obligated to furnish service under this warranty a) to repair damage resulting
from attempts by personnel other than Tektronix representatives to install, repair
or service the product; b) to repair damage resulting from improper use or
connection to incompatible equipment; or c) to service a product that has been
modified or integrated with other products when the effect of such modification
or integration increases the time or difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS
PRODUCT IN LIEU OF ANY OTHER WARRANTIES, EXPRESSED OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE
PRODUCTSISTHESOLEANDEXCLUSIVEREMEDYPROVIDEDTOTHE
CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS
VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER
TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
General Safety Summary
Review the following safety precautions to avoid injury and prevent
damage to this product or any products connected to it. To avoid
potential hazards, use this product only as specified.
Only qualified personnel should perform service procedure s.
To Avoid Fire or Personal Injury
Connect and Disconnect Properly. Connect the probe output to the
measurement instrument before connecting the probe to the circuit
under test. Disconnect the probe input and the probe ground from the
circuit under test before disconne cting the probe from the measurement instrument.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe
all ratings and markings on the product. Consult the product manual
for further ratings information before making connections to the
product.
Connect the ground lead of the probe to earth ground only.
Do Not Operate Without Covers. Do not operate this product with
covers or panels removed.
Do Not Operate With Suspected Failures. If you suspect there is
damage to this product, have it inspected by qualified service
personnel.
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive Atmosphere.
Keep Product Surfaces Clean and Dry.
P7240 4 GHz 5X Active Probe User Manual
i
General Safety Summary
Safety Terms and Symbols
Terms in This Manual. These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that
could result in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that
could result in damage to this product or other property.
Terms on the Product. These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you
read the marking.
WARNING indicates an injury hazard not immediately accessible as
you read the marking.
CAUTION indicates a ha zard to property including the product.
Symbols on the Product. These symbols may appear on the product:
CAUTION
Refer to Manual
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P7240 4 GHz 5X Active Probe User Manual
Table of Contents
General Safety Summary iii............................
Preface v............................................
Related Manuals v....................................
Contacting Tektronix vi.................................
Product Description 1.................................
TekConnect Interface 1.................................
Installation 2.........................................
Options 3............................................
Features and Accessories 5.............................
Functional Check 13...................................
Configuration 15......................................
Probe Offset 15........................................
Operating Basics 17...................................
Handling the Probe 17..................................
Maximum Nondestructive Input Voltage 17.................
Input Linear Dynamic Range 17..........................
Ground Lead Length 18.................................
Ground Lead Inductance 18..............................
Helpful Hints 21......................................
Low-inductance Grounding 21............................
SureFoot Grounding 22.................................
Appendix A: Specifications 23...........................
Specifications 23.......................................
Appendix B: User Service 27............................
Inspection and Cleaning 27..............................
Calibration 27.........................................
Replacement Parts 27...................................
Preparation for Shipment 28..............................
Appendix C: Replaceable Parts 29.......................
Parts Ordering Information 29............................
Using the Replaceable Parts List 30........................
P7240 4 GHz 5X Active Probe User Manual
iii
Table of Contents
List of Figures
Figure 1: P7240 Probe featuring the TekConnect interface 1
Figure 2: Connecting and disconnecting the probe 2.......
Figure 3: Probe functional check connections 13...........
Figure 4: Dynamic and offset limitations 16...............
Figure 5: Waveform distortion from ground lead length 18..
Figure 6: Ground Lead Equivalent Circuit 19..............
Figure 7: Low-inductance grounding 21...................
Figure 8: Using a SureFoot adapter for grounding 22.......
Figure 9: Typical input impedance and
phase versus frequency 24...........................
Figure 10: Typical bandwidth 25.........................
Figure 11: Probe head and compensation box dimensions 25.
Figure 12: P7240 replaceable parts 31....................
Figure 13: P7240 standard accessories 32.................
Figure 14: P7240 optional accessories 34..................
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P7240 4 GHz 5X Active Probe User Manual
Preface
This is the User Manual for the P7240 probe. This manual provides
operating information, specifications, and a replaceable parts list.
Related Manuals
If you need to do a performance verificati on o r make inte rnal
adjustments to your probe, refer to the P7240 4 GHz Active Probe
Service Manual, Tektronix pa rt number 071-1056-XX. The manual is
a printable pdf file, and is available on both the Tektronix website
and the Optional Applications CD, Tektronix part number
063-3376-XX. The Optional Applications CD is included with
Tektronix oscilloscopes featuring the TekConnect interface.
P7240 4 GHz 5X Active Probe User Manual
v
Preface
Contacting Tektronix
Phone 1-800-833-9200*
Address Tektronix, Inc.
Department or name (if known)
14200 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
Web site www.tektronix.com
Sales
support
Service
support
Technical
support
* This phone number is toll free in North America. After office
hours, please l eave a voice mail message.
Outside North America, contact a Tektronix sales office or
distributor; see the Tektronix web site for a list of offices.
1-800-833-9200, select option 1*
1-800-833-9200, select option 2*
Email: techsupport@tektronix.com
1-800-833-9200, select option 3*
1-503-627-2400
6:00 a.m. -- 5:00 p.m. Pacific time
vi
P7240 4 GHz 5X Active Probe User Manual
Product Description
The Tektronix P7240 is a 4 GHz (probe only), 5X active FET probe.
The P7240 has a low input capacitance (1 pF) and high input
resistance (20 kΩ), which minimize circuit loading over a wide
bandwidth range. The small profile and low-mass head of the P7240
make probing dense circuitry by hand fast and easy. The accessory
tips and adapters included enable the P7240 to be used on a wide
variety of circuit architectures.
Figure 1: P7240 Probe featuring the TekConnect interface
TekConnect Interface
The P7240 is powered through a TekConnect interface between the
probe compensation box and the oscilloscope. The TekConnect
interface provides a communication path through contact pins on the
host instrument. Power, signal, offset, and probe characteristic data
transfer through the interface.
P7240 4 GHz 5X Active Probe User Manual
1
Product Description
When the probe is connected, the oscilloscope reads EEPROM
information from the probe, identifying the device and allowing the
appropriate power supplies to be powered on. The preamp inputs on
the oscilloscope are electrostatic discharge protected by remaining
grounded until a valid TekConnect device is detected.
Installation
The TekConnect interface features a spring-loaded latch that
provides audible and tactile confirmation that a reliable connec tion
has been made to the oscilloscope. Slide the probe into the
TekConnect receptacle on the oscilloscope. The probe snaps into the
oscilloscope when fully engaged. See Figure 2.
To release the probe from the oscilloscope, grasp the compensation
box, depress the latch button, and pull out the probe.
Latch
button
Figure 2: Connecting and disconnecting the probe
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P7240 4 GHz 5X Active Probe User Manual
Options
Product Description
The following options are available when ordering the P7240 probe:
H Option D1 -- Calibration Data
H Option C3 -- 3 years Calibration Service
H Option D3 -- 3 years Calibration Data (requires Option C3)
H Option R3 -- 3 years Extended Warranty
P7240 4 GHz 5X Active Probe User Manual
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Product Description
4
P7240 4 GHz 5X Active Probe User Manual
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