Tektronix P6247 User manual

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Instructions
P6246 400 MHz & P6247 1 GHz
Differential Probes
070-9898-04
*P070989804*
070989804
1

Copyright ©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 privileges reserved.
Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077
TEKTRONIX, TEK, and TEKPROBE are registered trademarks of
Tektronix, Inc.
KlipChip, TwinFoot, and TwinTip are trademarks of Tektronix, Inc.

WARRANTY
Tektronix warrants that the products that it manufactures and sells will be free from defects
in materials and workmanship for a period of one (1) year from the date of shipment. If a
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; c) to repair any
damage or malfunction caused by the use of non-Tektronix supplies; or d) 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 IN LIEU OF ANY OTHER
WARRANTIES, EXPRESS 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 PRODUCTS IS THE SOLE AND
EXCLUSIVE REMEDY PROVIDED TO THE 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.

P6246 & P6247 Instructions 1
Table of Contents
General Safety Summary 3............................
Preface 5............................................
Related Manuals 5....................................
Contacting Tektronix 6.................................
Getting Started 7.....................................
Features and Accessories 7..............................
Installation 12.........................................
Instruments with the TekProbe II Interface (Tektronix TDS 400,
500, 600, and 700 Series Oscilloscopes) 13............
Instruments without the TekProbe II Interface 13..........
Operating Basics 14...................................
Input Voltage Limits 14.................................
Maximum Input Voltage 14...........................
Common-Mode Signal Range 14.......................
Differential-Mode Signal Range 15.....................
Attenuation Settings 15.................................
DC Reject 15..........................................
Probe Grounding 16....................................
Input Impedance and Probe Loading 17.....................
Common-Mode Rejection 18.............................
Probing Techniques to Maximize CMRR 19.................
Reference 20.........................................
Problems with Single-Ended Measurements 20...............
Differential Measurements 20............................
Common-Mode Rejection Ratio 21.....................
Assessing CMRR Error 21............................
Input Impedance Effects on CMRR 22...................
Extending the Input Leads 22.............................
Extending the Ground Lead 23............................
Extending the Probe Output 23...........................
Terminating the Probe 23.............................
Effect of Extending the Output Cable 24.................
Using the Probe with Other Instruments 24..................

Table of Contents
2P6246 & P6247 Instructions
Specifications 25......................................
Warranted Characteristics 25.............................
Typical Characteristics 27...............................
Nominal Characteristics 30..............................

P6246 & P6247 Instructions 3
Preface
This manual contains instructions and specifications for using the
P6246 and P6247 differential probes.
Related Manuals
For performance verification procedures, adjustment procedures, list
of replaceable parts, and other service information, refer to the
P6246 & P6247 Service Manual (070-9899-XX).

Preface
4P6246 & P6247 Instructions
Contacting Tektronix
Product
support
For questions about using Tektronix measurement
products, call toll free in North America:
1-800-833--9200
6:00 a.m. -- 5:00 p.m. Pacific time
Or contact us by e-mail:
[e-mail]
For product support outside of North America,
contact your local Tektronix distributor or sales
office.
Service
support
Tektronix offers extended warranty and calibration
programs as options on many products. Contact
your local Tektronix distributor or sales office.
For a listing of worldwide service centers, visit our
web site.
For other
information
In North America:
1-800--833--9200
An operator can direct your call.
To write us
Web site
Tektronix, Inc.
P.O. Box 500
Beaverton, OR 97077-1000
USA
www.Tektronix.com

P6246 & P6247 Instructions 5
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.
To Avoid Fire or Personal Injury
Ground the Product. This product is grounded through the grounding
conductor of the power cord. To avoid electric shock, the grounding
conductor must be connected to earth ground. Before making
connections to the input or output terminals of the product, ensure
that the product is properly grounded.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all
ratings and marking on the product. Consult the product manual for
further ratings information before making connections to the
product.
Do not apply a potential to any terminal, including the common
terminal, that exceeds the maximum rating of that terminal.
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.