Tektronix P7260 User manual

xx

P7260

6 GHz 5X/25X Active Probe

User Manual

*P07109 2203*

071-0922-03

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P7260

6 GHz 5X/25X Active Prob

e

ZZZ

User Manual

xx

www.tektronix.com

071-0922-03

ts reserved.

Tektronix products are covered by U.S. and foreign patents, issued and pendin g.

Informati on in this pu blicatio

n supersedes that in all previously p ublished

material. Speciﬁcations and price change privileges reserved.

Tektronix, Inc., P.O. Box 500,

Beaverton, OR 97077

TEKTRONIX

, TEK, and TekConnect are registered trademarks of Tektronix, Inc.

Contacting Tektronix

Tektronix, Inc.

14200 SW Karl Braun Drive

P.O. Box 500

Beaverton, OR 97077

USA

For p ro duct information, sales, service, and tech nical support:

In North America, call 1-800-83 3-9200.

Worldwide, visit www.tektronix.com to ﬁnd contacts in your area.

Warranty

Tektronix warrants that this produ

ct will be free from defe cts in materials and

workmanship for a period of one (1) year from the date of shipment. If any such product

proves defective during this w

arranty 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. Parts, modules and replacement products used by

Tektronix for warranty work may be new or reconditioned to like new performance. All

replaced parts, modules and

products become the property of Tektronix.

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 c harges

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 e ffect of such

modiﬁcation or integration increases the time or difﬁculty of s ervicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE

PRODUCT I

N LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED.

TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF

MERCHAN

TABILITY OR FITNES S FOR A PARTICULAR PURPOSE. TEKTRONIX’

RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE

SOLE AN

D EXCLUSIVE REMEDY PROVIDED TO T HE CUSTOMER FO R

BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE

LIABL

E FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL

DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS

ADV

ANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

[W2 – 15AUG04]

P7260 6 GHz 5X/25X Active Probe User Manual

i

Table of Contents

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

Preface vii............................................

Related Manuals vii....................................

Manual Structure vii....................................

Manual Conventions viii.................................

Product Description 1.................................

Options 2............................................

TekConnect Interface 2.................................

Installation 3.........................................

Firmware Requirements 3..............................

Probe Installation 3....................................

LED Flashes 4........................................

Changing Probe Attenuation 5.........................

Cleaning 6...........................................

Features and Accessories 7.............................

Host Instrument-to-Probe Calibration 19.................

Functional Check 21...................................

Configuration 23......................................

Probe Offset 23........................................

Operating Basics 25...................................

Handling the Probe 25..................................

Maximum Nondestructive Input Voltage 25.................

Input Linear Dynamic Range 26..........................

Electrical Effects of Ground Lead Length 26................

Ground Lead Induct ance 27..............................

Electrical Effects of Adapters 29..........................

Troubleshooting 31....................................

Nontypical LED Flash Pattern When You Install the Probe 31...

Nontypical LED Response When You Press

the SELECT Button 32...............................

Table of Contents

ii

P7260 6 GHz 5X/25X Active Probe User Manual

Specifications 33......................................

Warranted Characteristics 33.............................

Typical Characteristics 34...............................

Replaceable Parts 41...................................

Parts Ordering Information 41............................

Using the Replaceable Parts List 42........................

Item Names 42........................................

Indentation System 42..................................

Abbreviations 42.......................................

Table of Contents

P7260 6 GHz 5X/25X Active Probe User Manual

iii

List of Figures

Figure 1: P7260 Probe featuring the TekConnect interface 1

Figure 2: Connecting and disconnecting the probe 4.......

Figure 3: Probe functional check connections 20...........

Figure 4: Dynamic and offset limitations 24...............

Figure 5: Waveform distortion from ground lead length 27..

Figure 6: Ground lead equivalent circuit 28...............

Figure 7: Typical effects of using the probe tip adapters 29...

Figure 8: Typical input impedance and phase versus

frequency 35.......................................

Figure 9: Typical bandwidth at 5X attenuation 36..........

Figure 10: Typical bandwidth at 25X attenuation 37........

Figure 11: Probe head and compensation box dimensions 38.

Figure 12: P7260 replaceable parts 43....................

Figure 13: P7260 standard accessories 44.................

Figure 14: P7260 optional accessories 46..................

Table of Contents

iv

P7260 6 GHz 5X/25X Active Probe User Manual

List of Tables

Table 1: P7260 features and standard accessories 7........

Table 2: P7260 optional accessories 16...................

Table 3: Nontypical LED flash patterns 31...............

Table 4: End states following nontypical LED flash

patterns 32........................................

Table 5: Warranted electrical specifications 33............

Table 6: Typical electrical characteristics 34..............

Table 7: Typical mechanical characte ristics 39............

Table 8: Environmental characteristics 39................

Table 9: Certifications and compliances 40................

P7260 6 GHz 5X/25X Active Probe User Manual

v

General Safety Summ ary

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 procedures.

To Avoid Fire or Personal Injury

Connect and Disconnect Properly. Connect the probe output to the

measurement instrument before connecting the probe to the circui t

under test. Disconnect the probe input and the probe ground from the

circuit under test before disconnecting the probe from the me asure-

ment instrument.

Observe A ll 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 operat e this product with

covers or panel s 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

P7260 6 GHz 5X/25X Active Probe User 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 c onditi ons or practice s that

could result in damage to this product or other property.

Terms on the Product. These terms m ay 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

Refer to Manual

P7260 6 GHz 5X/25X Active Probe User Manual

vii

Preface

This is the instruction manual for the P7260 6 GHz 5X/25X Active

Probe. Read this preface to learn how this manual is structured and

what conventions it uses. Before using this manual or the P7260

probe, read the General Safety Summary sec tion at the beginning of

this manual for safety and other important background information.

Related Manuals

If you need to do a performance verification for your probe refer to

the P7260 6 GHz 5X/25X Active Probe Service Manual. T he manual

is available as a printable .pdf file on the Application Software CD

(Tektronix part number 063-3376-XX) that accompanies your host

instrument, or on the Tektronix website.

Manual S tructure

This manual is divided into sections that contain related section

topics:

H Product Description includes a product de scription, and

instructions for i nstallation and changing probe attenuation.

H Features and Accessories introduces the standard and optional

accessories for the probe.

H Operating Basics include s information about handling the probe,

dynamic range, and grounding.

H Specifications includes warranted electrical specifications,

Typical electrical characteristics, and graphs for typical input

impedance and typical bandwidth.

Be sure to read the introductory text for each procedure. T hese

introductions provide important i nformation needed to use the P7260

correctly, safely, and efficiently.

Preface

viii

P7260 6 GHz 5X/25X Active Probe User Manual

Manual Conventions

This manual uses certain conventions that you should become

familiar with before using the P7260 probe.

Safety

Symbols and terms related to safety appear in the General Safety

Summary found at the beginning of t his manual.

P7260 6 GHz 5X/25X Active Probe User Manual

1

Product Description

The Tektronix P7260 is a 6 GHz active probe. It has a low input

capacitance (<0.5 pF) and high input resistance (20 kΩ at DC),

which minimize circuit loading over a wide bandwidth range.

The P7260 probe features selec table at tenuation to maximize

dynamic range and sensitivity. The 5X setting provides 1.5 V

p--p

dynamic range and <75 ps risetime, and the 25X setting provides

6V

p--p

dynamic range and <85 ps risetime.

Designed for use with the TDS6604 TekConnect host instrument, the

P7260 system bandwidth is typically 6 GHz at the probe tip. The

TekConnect interface extends useful bandwidth and signal fidelity to

18 GHz.

Figure 1: P7260 Probe featuring the TekConnect interface

Product Description

2

P7260 6 GHz 5X/25X Active Probe User Manual

The small profile and low-mass head of the P7260 m ake probing

dense circuitry by hand fast and easy. Complimentary accessory tips

and adapters help you connect with a wide variety of circuit

architectures. For hands-free probing, the square-pin adapter

(standard accessory), and the PPM100, a multi

-axis probe positione r

(optional accessory) are provided. For details, refer to the Features

and Accessories sect ion of t his manual.

Options

The following options are available when ordering the P7260 probe:

H D1 Calibration data report

H C3 Additional 2 years of calibration

H D3 Calibration data report for Option C3

H R3 Additional 2 years of re pair

H C5 Additional 4 years of calibration

H D5 Calibration data report for Option C5

H R5 Additional 4 years of re pair

TekConnect Interface

The P7260 is powered through a TekConnect interface between the

probe compensation box and the host instrument. The TekConnect

interface provides a communication path through contact pins on the

host instrument. Power, signal, offset, and probe charact eristic dat a

transfer through the interface.

When the probe is connected, the host instrument reads configurati on

information from the probe, allowing the host instrument to

optimally configure the internal signal path. To protect the preamp

inputs on the host instrument from electrostatic discharge, the input s

remain grounded until a valid TekConnect device is detected.

Product Description

P7260 6 GHz 5X/25X Active Probe User Manual

3

Installation

The P7260 connec ts directly to the TekConnect interface on the

TekConnect host instrument.

Firmware Requirements

To ensure compatibility of your TekConnect host instrument with the

probe, your TDS7000, or CSA7000 series host i nstrument must have

the firmware upgrade V2.1.0 or higher.

Firmware upgrade instructions are available on the Tektronix website

at www.tektronix.com. Select the Sof tware & Drivers linkonthe

home page of the website. The Tektronix website provides up-to-date

software and firmware upgrades for your P7260 and host instrument.

Probe Installation

The TekConnect interface features a spring-loaded latch that

provides audible and tactile confirmation that a reliable connection

has been made to the host instrument. Slide the probe into the

TekConnect receptacle on the host instrument. The probe snaps into

the host instrument when fully engaged. See Figure 2 on page 4.

To release the probe from the host instrument, grasp the compensa-

tion box, depress the latch button, and pull out the probe.

Product Description

4

P7260 6 GHz 5X/25X Active Probe User Manual

Latch

button

5X

SELECT

button

25X

LEDs

Figure 2: Connecting and disconnecting the probe

LED Flashes

Two green LEDs, labeled 5X and 25X, a re visible on the top of the

P7260 compensation box. See Figure 2, above. When you connect

the probe to a channel on the host instrument, the LEDs immediately

show the following information:

H The results of diagnostic tests performed on internal circuitry of

the probe. The tests include signals to the host instrument and a

host response.

H The attenuation setting of the probe. Initially, the host instrument

sets the at tenuation of the probe to 25X.

Reading LED diagnostic flashes

In normal ope ration when you connect the probe, both LEDs flash

once, simultaneously. This flash indicates that the P7260 has

completed internal diagnosti cs and is initiating communication with

the host. Next, the 25X attenuation LED lights and remains lit,

indicating that the host has recognize d the P7260, configured internal

signal paths accordingly, and set the default attenuation to 25X.

Product Description

P7260 6 GHz 5X/25X Active Probe User Manual

5

NOTE. If you see a different set of flashes than described on page 4,

the internal circuitry of the P7260 has failed in some way. To avoid

inaccurate probing, do not use the probe bef ore referring to page 32

of the Troubleshooting section.

Changing Probe Attenuation

Upon installation, the defaul t att enuation of the P7260 is set to 25X.

To manually change attenuation, use the SELECT button located

below the LED lights on the top of the compensation box. To switch

to 5X atte nuation, grasp the compensat ion box a nd depress the

SELECT button. The 25X LED extinguishes and the 5X LED lights.

To return to 25X attenuation, depress the SELECT button again.

You can also change attenuation settings using GPIB commands

available on your host instrument. Refer to the GPIB Programmer

Online Help software provided with your host instrument.

NOTE. After connecting the P7260 to the host instrument, allow the

probe to warm up for at least twenty minutes before probing.

Product Description

6

P7260 6 GHz 5X/25X Active Probe User Manual

Cleaning

Follow these guide lines for cleaning the P7260 probe.

CAUTION. To avoid permanent damage from static or to avoid

damage to the probe tip, do not clean the probe head or probe tip.

While cleaning the compensation box and cable, use only enough

solution to dampen the cloth or swab. No part of the P7260 is

waterproof.

General Care. Do not use chemical cleaning agents. Do not use

chemicals that contain acetone, benzene, toluene, xylene, or similar

solvents because they will damage the plastic.

Clean the exterior surfaces of the compensation box with a dry,

lint-free cloth or a soft-bristle brush. If dirt remains, use a cloth or

swab dampened with a 75% isopropyl alcohol solution. A swab is

useful for cleaning in narrow spaces around the TekConnec t release

button and connectors. Do not use abrasive compounds on any part

of the instrum ent.

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Tektronix P7260 User manual

Tektronix P7260 User manual

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