Tektronix P7350 Manual de usuario

Instruction Manual

P7350

5 GHz Differential Probe

071-1238-00

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

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, SureFoot, and TekConnect are registered trademarks of

Tektronix, Inc., and KlipChip is a trademark 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.

P7350 5 GHz Differential Probe Instruction Manual i

Preface

This is the Instruction Manual for the P7350 differential probe.

This manual provides operating information, specifications, and a

replaceable parts list.

Preface

ii P7350 5 GHz Differential Probe Instruction Manual

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

1-800-833-9200, select option 1*

Service

support

1-800-833-9200, select option 2*

Technical

support

Email: techsupport@tektronix.com

1-800-833-9200, select option 3*

6:00 a.m. -- 5:00 p.m. Pacific time

*This phone number is toll free in North America. After office

hours, please leave a voice mail message.

Outside North America, contact a Tektronix sales office or

distributor; see the Tektronix web site for a list of offices.

P7350 5 GHz Differential Probe Instruction Manual iii

Table of Contents

Preface i............................................

Contacting Tektronix ii.................................

General Safety Summary v..............................

Service Safety Summary vii..............................

Getting Started 1.....................................

TekConnect Interface 1.................................

Functional Check 3....................................

Options 4............................................

Features and Standard Accessories 5......................

Optional Accessories 9.................................

Operating Basics 11...................................

Input Voltage Limits 12.................................

Common-Mode Rejection 12.............................

Probing Techniques to Maximize CMRR 13.................

Input Impedance and Probe Loading 14.....................

Probe Grounding 15....................................

Electrical Effects of Accessories 16........................

Reference 17.........................................

Problems with Single-Ended Measurements 17...............

Differential Measurements 17............................

Extending the Input Leads 19.............................

Extending the Ground Lead 20............................

Appendix A: Specifications 21...........................

Appendix B: Performance Verification 29.................

Appendix C: Maintenance 43...........................

Appendix D: Replaceable Parts 45.......................

Table of Contents

iv P7350 5 GHz Differential Probe Instruction Manual

List of Figures

Figure 1: P7350 differential probe featuring the

TekConnect interface 1..............................

Figure 2: Connecting and disconnecting the probe 2..........

Figure 3: Probe functional check connections 3.............

Figure 4: Protect the probe tips with the protective cover 11....

Figure 5: Using the variable spacing adapter 13..............

Figure 6: Using the TwinFoot adapter 13....................

Figure 7: Typical probe input model 14.....................

Figure 8: Probe ground input 15...........................

Figure 9: Typical effects on a signal using probe tip adapters 16.

Figure 10: Simplified model of a differential amplifier 18......

Figure 11: Twisting the input leads 20......................

Figure 12: Typical common- and differential-mode gain plots 24

Figure 13: Typical differential input impedance vs frequency 25.

Figure 14: Typical bandwidth 25..........................

Figure 15: Probe head and compensation box dimensions 27....

Figure 16: Variable spacing adapter dimensions 28............

Figure 17: Square pin adapter dimensions 28................

Figure 18: TekConnect Interface Calibration Adapter 31.......

Figure 19: Probe Calibration Fixture 33.....................

Figure 20: Probe Calibration Fixture test points 34............

Figure 21: Setup for the output offset voltage test 35..........

Figure 22: DC Gain Accuracy setup 36.....................

Figure 23: Test system rise time setup 38...................

Figure 24: Test system rise time setup with probe 40..........

Figure 25: Verifying both probe pins are contacting the

DM test points 41...................................

Figure 26: P7350 replaceable parts 47......................

Figure 27: P7350 standard accessories 49...................

Figure 28: P7350 optional accessories 51...................

P7350 5 GHz Differential Probe Instruction Manual v

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

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 disconnecting the probe from the measure-

ment 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.

The common terminal is at ground potential. Do not connect the

common terminal to elevated voltages.

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.

General Safety Summary

vi P7350 5 GHz Differential Probe Instruction Manual

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 hazard to property including the product.

Symbols on the Product. These symbols may appear on the product:

CAUTION

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