Tektronix TAP2500 User manual

TAP2500 and TAP3500
2.5 GHz and 3.5 GHz Probes
Instruction Manual
www.tektronix.com
071-1836-01

Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by
national copyright laws and international treaty provisions.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously
published material. Specifications and price change privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
TekVPI is a trademark of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14200 SW Karl Braun Drive
P.O. Box 5 0 0
Beaverton, OR 97077
USA
For product information, sales, service, and technical support:
In North America, call 1-800-833-9200.
Worldwide, visit www.tektronix.com to find contacts in your area.

Warranty 2
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. 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 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 WITH RESPECT TO THE PRODUCT 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.

Table of Contents
Table of Contents
General Safety Summary .. ................................................................................................................. v
Environmental Considerations ............................................................................................................. ix
Preface...................................................................................................................................... xi
Documentation........................................................................................................................ xi
Conventions Used in this Manual .................................................................................................... xi
Returning the Probe for Servicing...................................................................................................xii
Key Features ............................................................................................................................... 1
Installation .................................................................................................................................. 2
Connecting to the Host Instrument ................................................................................................... 2
Probe Controls and Indicators........................................................................................................ 3
Functional Check ........................................................................................................................... 6
Required Equipment.................................................................................................................. 6
Calibration .................................................................................................................................. 8
Prerequisites.......................................................................................................................... 8
Required Equipment.................................................................................................................. 8
Test Procedure........................................................................................................................ 9
Basic Operation............................................................................................................................ 13
Probe Head Assembly...............................................................................................................13
Probe Input........................................................................................................................... 14
TAP2500 and TAP3500 Instruction Manual i

Table of Contents
Probe Offset.......................................................................................................................... 16
Accessories and Options.................................................................................................................. 19
Using Standard Accessories . .. ..................................................................................................... 19
Optional Accessories ................................................................................................................ 29
Options............................................................................................................................... 32
Probing Principles ......................................................................................................................... 33
Ground Lead Length .. ............................................................................................................... 33
Ground Lead Inductance .................................................................................................................. 34
Low-inductance Grounding. ............................................................................................................... 35
SureFoot™ Grounding . ................................................................................................................... 36
Probe Tip Test Points...................................................................................................................... 37
Probe Tip Stabilization..................................................................................................................... 38
Specifications.............................................................................................................................. 39
Warranted Characteristics........................................................................................................... 40
Typical Characteristics............................................................................................................... 41
Nominal Characteristics ............................................................................................................. 46
Performance Verification .................................................................................................................. 47
Equipment Required................................................................................................................. 47
Equipment Setup..................................................................................................................... 49
DC Gain Accuracy ................................................................................................................... 50
Rise Time ............................................................................................................................ 53
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Table of Contents
Test Record .......................................................................................................................... 61
Maintenance............................................................................................................................... 63
Error Condition....................................................................................................................... 63
Replacement Parts .................................................................................................................. 63
Cleaning.............................................................................................................................. 64
Index
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Table of Contents
iv TAP2500 and TAP3500 Instruction Manual

General Safety Summary
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 procedures.
While using this product, you may need to access other parts of a larger system. Read the safety sections of the other component
manuals for warnings and cautions related to operating the system.
To Avoid Fire or Personal Injury
Connect and Disconnect Properly. Do not connect or disconnect probes or test leads while they are connected to a voltage
source.
Connect and Disconnect Properly. Connect the probe output to the measurement instrument before connecting the probe to the
circuit under test. Connect the probe reference lead to the circuit under test before connecting the probe input. Disconnect the probe
input and the probe reference lead from the circuit under test before disconnecting the probe from the measurement instrument.
Ground the Product. This product is indirectly grounded through the grounding conductor of the mainframe 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 markings on the product. Consult the
product manual for further ratings information before making connections to the product.
Connect the probe reference lead to earth ground only.
Do not apply a potential to any terminal, including the common terminal, that exceeds the maximum rating of that terminal.
TAP2500 and TAP3500 Instruction Manual v

General Safety Summary
Do Not Operate Without Covers. Do not operate this product with covers or panels removed.
Do Not Operate With Suspected Failures. If you suspect that there is damage to this product, have it inspected by qualified
service personnel.
Avoid Exposed Circuitry. Do not touch exposed connections and components when power is present.
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive Atmosphere.
Keep Product Surfaces Clean and Dry.
vi TAP2500 and TAP3500 Instruction Manual