Tektronix TAP2500, TAP4000 Primary User
x
TAP2500, TAP3500, and TAP4000
2.5 GHz, 3.5 GHz, and 4 GHz Probes
ZZZ
Instruction Manual
*P071183602*
071-1836-02
xx
TAP2500, TAP3500, and TAP4000
2.5 GHz, 3.5 GHz, and 4 GHz Probes
ZZZ
Instruction Manual
www.tek.com
071-1836-02
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.
14150 SW Karl Braun Drive
P.O . Bo x 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.tek.com to find contacts in your area.
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. 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. T ektronix
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.
[W2 – 15AUG04]
Table of Contents
General safetysummary .................................................................................................................... v
Service safety summary.................................................................................................................... ix
Environmental Considerations .............................................................................................................. x
Preface...................................................................................................................................... xi
Documentation........................................................................................................................ xi
Conventionsused in this manual.....................................................................................................xi
Returning the probefor servicing.................................................................................................... xii
Keyfeatures ................................................................................................................................ 1
Installation .................................................................................................................................. 2
Connecting to the host instrument.................................................................................................... 2
Probe controlsand indicators......................................................................................................... 3
Functional check. .. ......................................................................................................................... 6
Required equipment .................................................................................................................. 6
Calibration .................................................................................................................................. 8
Prerequisites . ......................................................................................................................... 8
Required equipment .................................................................................................................. 8
Test procedure........................................................................................................................ 9
Table of Contents
Basic operation ............................................................................................................................ 12
Probe head assembly................................................................................................................ 12
TAP2500, TAP3500, and TAP4000 Instruction Manual i
Table of Contents
Accessoriesand options .................................................................................................................. 17
Probing principles.......................................................................................................................... 30
Ground lead inductance ................................................................................................................... 31
Low-inductance grounding ................................................................................................................ 32
SureFoot™ Grounding . ................................................................................................................... 33
Probe tip test points ....................................................................................................................... 34
Probe tip stabilization...................................................................................................................... 35
Specifications.............................................................................................................................. 36
Performance verification................................................................................................................... 45
Probe input........................................................................................................................... 13
Probe offset .......................................................................................................................... 15
Using standard accessories . .. ...................................................................................................... 17
Optional accessories. . ............................................................................................................... 27
Options ............................................................................................................................... 29
Ground lead length .. . ............................................................................................................... 30
Warranted characteristics............................................................................................................ 37
Typicalcharacteristics ............................................................................................................... 38
Nominal characteristics.............................................................................................................. 44
Equipment required .. . ............................................................................................................... 45
Equipment setup ..................................................................................................................... 47
DC gain accuracy.................................................................................................................... 48
ii TAP2500, TAP3500, and TAP4000 Instruction Manual
Table of Contents
Rise time ............................................................................................................................. 51
Test record ........................................................................................................................... 59
Maintenance . .. ............................................................................................................................ 60
Error condition ....................................................................................................................... 60
Replacementparts................................................................................................................... 60
Cleaning.............................................................................................................................. 61
Index
TAP2500, TAP3500, and TAP4000 Instruction Manual iii
Table of Contents
iv TAP2500, TAP3500, and TAP4000 Instruction Manual
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
General safety summary
Connect and disconnect properly.
source.
Connect and disconnect properly.
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.
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.
This product is indirectly grounded through the grounding conductor of the mainframe power cord. To avoid
Observe all terminal ratings.
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, TAP3500, and TAP4000 Instruction Manual v
Do not connect or disconnect probes or test leads while they are connected to a voltage
Connect the probe output to the measurement instrument before connecting the probe to the
To avoid fire or shock hazard, observe all ratings and markings on the product. Consult the product
General safety summary
Do not operate without covers.
Do not operate with suspected failures.
service personnel.
Avoid exposed circuitry.
Do not operate this product with covers or panels removed.
If you suspect that there is damage to this product, have it inspected by qualified
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, TAP3500, and TAP4000 Instruction Manual
Terms in this manual
These terms may appear in this manual:
General safety summary
WARNING.
CAUTION.
Warning statements identify conditions or practices that could result in injury or loss of life.
Caution statements identify conditions or practices that could result in damage to this product or other property.
Symbols and 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.
TAP2500, TAP3500, and TAP4000 Instruction Manual vii
General safety summary
The following symbol(s) may appear on the product:
viii TAP2500, TAP3500, and TAP4000 Instruction Manual
Service safety summary
Service safety summary
Only qualified personnel should perform service procedures. Read this
before performing any service procedures.
Do not service alone.
first aid and resuscitation is present.
Disconnect power.
power.
Use care when servicing with power on.
battery (if applicable), and disconnect test leads before removing protective panels, soldering, or replacing components.
To avoid electric shock, do not touch exposed connections.
Do not perform internal service or adjustments of this product unless another person capable of rendering
To avoid electric shock, switch off the instrument power, then disconnect the power cord from the mains
Dangerous voltages or currents may exist in this product. Disconnect power, remove
Service safety summary
General safety summary
and the
TAP2500, TAP3500, and TAP4000 Instruction Manual ix
Environmental Considerations
Environmental Considerations
This section provides information about the environmental impact of the product.
Restriction of hazardous substances
Complies with RoHS2 Directive 2011/65/EU.
Product End-of-Life Handling
Observe the following guidelines when recycling an instrument or component:
Equipment Recycling.
contain substances that could be harmful to the environment or human health if improperly handled at the product’s end of life. To
avoid release of such substances into the environment and to reduce the use of natural resources, we encourage you to recycle this
product in an appropriate system that will ensure that most of the materials are reused or recycled appropriately.
This symbol indicates that this product complies with the applicable European Union requirements according to
Directives 2012/19/EU and 2006/66/EC on waste electrical and electronic equipment (WEEE) and batteries. For
information about recycling options, check the Tektronix Web site (www.tek.com/productrecycling).
x TAP2500, TAP3500, and TAP4000 Instruction Manual
Production of this equipment required the extraction and use of natural resources. The equipment may
Preface
This manual describes the installation and operation of the TA P2500, TAP3500, and TAP4000 active probes. Basic probe operations
and concepts are presented in this manual. The DPO7000 series oscilloscope and the TAP2500 probe is used in all illustrations in
this manual, unless noted otherwise. You can access this document and other related information from the Tektronix Web site.
Documentation
Preface
To read about Use these documents
TAP2500, TAP3500, and TAP4000 Probes: First Time Operation, Functional
Check, Operating Basics, Specifications, Performance Verification
In-depth oscilloscope operation, user interface help, GPIB commands Access the online help from the Help menu on
*
To access the documentation that is installed on your instrument, click
in the taskbar and select
Start
Read this Instruction Manual.
the host instrument.
Programs > TekApplications
*
.
Conventions used in this manual
The following icon is used throughout this manual to indicate a step sequence.
TAP2500, TAP3500, and TAP4000 Instruction Manual xi
Preface
Returning the probe for servicing
If your probe requires servicing, you must return the probe to Tektronix. If the original packaging is unfit for use or not available, use
the following packaging guidelines:
Preparation for Shipment
Use a corrugated cardboard shipping
1.
carton having inside dimensions at
least one inch greater than the probe
dimensions. The box should have a carton
test strength of at least 200 pounds.
Put the probe into an antistatic bag or wrap
2.
it to protect it from dampness.
Place the probe into the box and stabilize it
3.
with light packing material.
Seal the carton with shipping tape.
4.
Refer to
5.
beginning of this manual for the shipping
address.
xii TAP2500, TAP3500, and TAP4000 Instruction Manual
Contacting Tektronix
at the
Key features
The TAP2500, TAP3500, and TAP4000 active probes enable you to make accurate measurements with minimal circuit loading
from DC to 2.5 GHz, 3.5 GHz, and 4 GHz respectively, using oscilloscopes featuring the new Tektronix TekVPI oscilloscope
interface. Key features include:
Bandwidth
DC to ≥2.5 GHz (TAP2500)
DC to ≥3.5 GHz (TAP3500)
DC to ≥4 GHz (TAP4000)
±4 Volts Dynamic Range with ±10 volt
offset capability
10X Attenuation
40 kΩ Input Resistance
<0.8 pF Input Capacitance
TekVPI Interface
Small, low-mass probe head for probing
dense circuitry
Key features
TAP2500, TAP3500, and TAP4000 Instruction Manual 1
Installation
Installation
Connecting to the host instrument
Slide the probe into the TekVPI receptacle.
1.
The probe snaps when fully engaged.
When the probe is connected, the host
instrument reads information from the
probe and identifies the device.
To disconnect, press the latch release
2.
button and pull away from the instrument.
2 TAP2500, TAP3500, and TAP4000 Instruction Manual
Probe controls and indicators
Status LED
When the probe is powered on, the multicolor
Status LED:
Glows green after successfully completing
the power-on self test routine. The probe is
in normal operating mode.
Glows red if an error condition exists. (See
page 60,
Error condition
.)
Installation
TAP2500, TAP3500, and TAP4000 Instruction Manual 3
Installation
Menu button
Press the probe
1.
Probe Control screen on the oscilloscope.
Use the touch-screen buttons on the
2.
instrument to set the probe parameters.
Press the probe
3.
close the Probe Control screen.
button to display the
Menu
button again to
Menu
4 TAP2500, TAP3500, and TAP4000 Instruction Manual
AutoZero
We recommend that you run the probe
AutoZero routine:
After the 20 minute warm-up period
When the operating temperature of the
probe changes by ±5 °C
Installation
Press the probe
1.
Probe Control screen on the oscilloscope.
Short the probe tip to ground.
2.
Press the
3.
instrument to execute the AutoZero routine.
TAP2500, TAP3500, and TAP4000 Instruction Manual 5
AutoZero
button to display the
Menu
button on the
Functional check
Functional check
Use the following procedure to check that your probe is functioning properly. To verify that your probe meets the warranted
specifications, refer to the
Required equipment
Performance Verification
procedures. (See page 45.)
Description and quantity Performance requirement Recommended example
1
Oscilloscope TekVPI Interface Tektronix DPO7000 Series
Tektronix 5 Series MSO
Tektronix 6 Series MSO
Y-Lead adapter
0.25-in square pins for probe tip
196-3457-XX
2
connections
SMT KlipChip adapters (2)
1
Nine-digit part numbers (xxx-xxxx-xx) are Tektronix part numbers.
2
Standard probe accessory
0.25-in square pins-to-mini clips 206-0569-XX
2
6 TAP2500, TAP3500, and TAP4000 Instruction Manual
Signal
Connect the probe to any channel of the
1.
oscilloscope and set the oscilloscope to
display that channel.
Use the Y-lead Adapter and two SMT
2.
KlipChips to connect the probe tip to
the PROBE COMP terminals on the
oscilloscope.
Functional check
Press
3.
TAP2500, TAP3500, and TAP4000 Instruction Manual 7
AUTOSET
oscilloscope) to display the calibration
waveform. A stable waveform indicates
that your probe is functioning correctly.
(or adjust the
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