Tektronix IsoVu TIVM Series User manual

xx
TIVM Series
IsoVu™ Measurement System
ZZZ
User Manual
*P071349500*
071-3495-00

TIVM Series
IsoVu™ Measurement System
ZZZ
User Manual
xx
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071-3495-00

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.
ISOVU is a trademark of Tektronix Inc.
TEKVPI is a registered trademark of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14150 SW Karl Braun Drive
P.O. Box 500
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. 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.
[W2 – 15AUG04]

Table of Contents
Important safety information...................................................................................... v
General safety summary ...................................................................................... v
Service safety summary..................................................................................... vii
Terms in this manual ........................................................................................ viii
Symbols and terms on the product......................................................................... viii
Preface.............................................................................................................. ix
Key features ................................................................................................... ix
Laser certification............................................................................................. ix
Product description ............................................................................................ x
Models ......................................................................................................... xi
Supported oscilloscopes...................................................................................... xi
Operating information.............................................................................................. 1
Accessories..................................................................................................... 1
Operating considerations...................................................................................... 2
Controls and indicators........................................................................................ 7
Connecting to a circuit ....................................................................................... 10
Self calibration................................................................................................ 12
AutoZero....................................................................................................... 14
Menu button................................................................................................... 14
Offset correction .............................................................................................. 15
1X/2X Range.................................................................................................. 17
Auto Range.................................................................................................... 18
Selecting a sensor tip cable .................................................................................. 19
Output clamping .............................................................................................. 20
Sensor tip loading............................................................................................. 20
Probe compensation .......................................................................................... 21
Deskew......................................................................................................... 21
Input offset .................................................................................................... 21
Application examples ............................................................................................. 23
Example 1: High-side VGS measurement................................................................... 23
Example 2: High-side drain current measurement........................................................ 25
Example 3: ESD troubleshooting........................................................................... 26
Reference information ............................................................................................ 29
Specifications.................................................................................................. 29
Dimensional drawings........................................................................................ 33
IsoVu measurement system block diagram ................................................................ 36
Tripods......................................................................................................... 37
Installing the probe tip adapters ............. ................................ ................................ 39
Installing the square pins on the circuit board ............. ................................................ 42
TIVM Series Measurement System User Manual i

Table of Contents
User service ........................................................................................................ 45
Service offerings.............................................................................................. 45
Preventive maintenance...................................................................................... 45
Performance verification procedures ....................................................................... 46
Propagation delay............................................................................................. 47
Troubleshooting and error conditions ...................................................................... 50
Repack the measurement system for shipment............................................................ 52
Test record..................................................................................................... 53
Appendix A: Remote programming............................................................................. 55
CH<n>:PRObe?............................................................................................... 55
CH<n>:PRObe:AUTOZero EXECute ..................................................................... 55
CH<n>:PRObe:COMMAND “CLAMP”, {“ON” | “OFF”}............................................. 55
CH<n>:PRObe:SET {“CLAMP ON” | “CLAMP OFF”}................................................ 55
CH<n>:PRObe:FORCEDRange <NR3> .................................................................. 56
CH<n>:PRObe:GAIN? ...................................................................................... 56
CH<n>:PRObe:ID {:SERnumber | :TYPe}? .............................................................. 56
CH<n>:PRObe:PROPDELay?.............................................................................. 57
CH<n>:PRObe:RECDESkew?.............................................................................. 57
CH<n>:PRObe:RESistance? ................................................................................ 57
CH<n>:PRObe:UNIts?....................................................................................... 57
CH<n>:PROBECOntrol {AUTO | MAN}................................................................. 57
CH<n>:PROBEFunc:EXTAtten <NR3>................................................................... 57
CH<n>:PROBEFunc:EXTDBatten? ....................................................................... 57
CH<n>:PROBEFunc:EXTUnits {“UU” | “None”}....................................................... 58
Appendix B: Compliance information .......................................................................... 59
Safety compliance ............................................................................................ 59
Environmental considerations............................................................................... 61
Index
ii TIVM Series Measurement System User Manual

List of Figures
Figure i: TIVM Series IsoVu Measurement System............................................................ x
Figure 1: Maximum safe handling limits for common mode voltages between the sensor head and earth
ground........................................................................................................... 5
Figure 2: RF burn hazard zone around the sensor head........................................................ 6
Figure 3: Controller indicators and buttons...................................................................... 7
Figure 4: Labels on the sensor head.............................................................................. 9
Figure 5: Sensor tip cable top and bottom labels ............................................................... 9
Figure 6: Connect the Comp box to the oscilloscope........................................ .................. 11
Figure 7: Connecting the sensor tip cable to the sensor head................................................. 11
Figure 8: Connect the sensor head to the flexible tripod...................................................... 12
Figure 9: Probe Setup menu...................................................................................... 14
Figure 10: Digital filter aliasing ................................................................................. 15
Figure 11: Digital filter aberrations (about 2.5% of Vp-p) ..................................................... 16
Figure 12: Digital filter aberrations after disabling offset correction........................................ 17
Figure 13: Top sensor tip labels.................................................................................. 17
Figure 14: Bottom sensor tip labels ............................................................................. 20
Figure 15: Half-bridge circuit showing the gate, source, and drain of the high-side FET............... .. 23
Figure 16: High-side turn-on characteristics ................................................................... 24
Figure 17: High side current shunt .............................................................................. 25
Figure 18: SMT resistor model .................................................................................. 26
Figure 19: ESD discharge test example......................................................................... 27
Figure 20: Sensor head dimensions with probe tip cover..................................................... 33
Figure 21: Sensor head dimensions without probe tip cover ................................................. 34
Figure 22: Controller dimensions................................................................................ 34
Figure 23: Comp box dimensions ............................................................................... 35
Figure 24: Probe tip adapter dimensions........................................................................ 35
Figure 25: Block diagram ........................................................................................ 36
Figure 26: Installing the flexible tripod under the DUT....................................................... 37
Figure 27: Connecting the sensor head to the top of the DUT with the flexible tripod.................... 37
Figure 28: Connecting to an adapter on the circuit board with the probe tip tripod ....................... 38
Figure 29: Lining up the MMCX-to-0.1-inch (2.54 mm) adapter on the circuit board.................... 39
Figure 30: Lining up the MMCX-to-0.062-inch (1.57 mm) adapter on the circuit board ................. 40
Figure 31: Pushing the MMCX-to-0.062-inch (1.57 mm) adapter in place................................. 40
Figure 32: Pushing the MMCX-to-0.1-inch (2.54 mm) adapter in place.................................... 41
Figure 33: Adapter clearance requirements .................................................................... 42
Figure 34: Removing the header from square pins on the circuit board..................................... 43
Figure 35: Using the soldering aide to install the square pins on the circuit board ........................ 44
Figure 36: Propagation delay measurement .................................................................... 50
TIVM Series Measurement System User Manual iii

Table of Contents
List of Tables
Table 1: Standard accessories..................................................................................... 1
Table 2: Optional accessories ..................................................................................... 2
Table 3: Input specifications....................................................................................... 3
Table 4: Environmental considerations .......................................................................... 3
Table 5: Controller indicators and buttons....................................................................... 7
Table 6: Sensor tip selection table............................................................................... 19
Table 7: Input offset............................................................................................... 21
Table 8: Warranted specifications................................................................................ 29
Table 9: Electrical specifications ................................................................................ 29
Table 10: Physical specifications ................................................................................ 33
Table 11: Required equipment for performance verification ................................................. 46
Table 12: Problems and possible solutions ..................................................................... 50
Table 13: Test record.............................................................................................. 53
Table 14: Sensor tip cables and dynamic ranges............................................................... 56
iv TIVM Series Measurement System User Manual

Important safety information
This manual contains information and warnings that must be followed by the user
for safe operation and to keep the product in a safe condition.
To safely perform service on this product, additional information is provided at
the end of this section. (See page vii, Service safety summary.)
General safety summary
Use the product only as specified. Review the following safety precautions to
avoid injury and prevent damage to this product or any products connected to it.
Carefully read all instructions. Retain these instructions for future reference.
Comply with local and national safety codes.
For correct and safe operation of the product, it is essential that you follow
generally accepted safety procedures in addition to the safety precautions specified
in this manual.
The product is designed to be used by trained personnel only.
Only qualified personnel who are aware of the hazards involved should remove
the cover for repair, maintenance, or adjustment.
Before use, always check the product with a known source to be sure it is
operating correctly.
This product is not intended for detection of hazardous voltages.
Use personal protective equipment to prevent shock and arc blast injury where
hazardous live conductors are exposed.
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.
When incorporating this equipment into a system, the safety of that system is the
responsibility of the assembler of the system.
To avoid fire or personal
injury
Connect and disconnect properly. Do not connect or disconnect sensor tip cables,
test leads, or accessories while they are connected to a voltage source. Use only
test leads and accessories supplied with the product, or indicated by Tektronix
to be suitable for the product.
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. Do not exceed the
Measurement Category (CAT) rating and voltage or current rating of the lowest
rated individual component of a product or accessory.
TIVM Series Measurement System User Manual v

Important safety information
Do not apply a potential that exceeds the maximum rating.
Do not operate without covers. Do not operate this product with covers or panels
removed, or with the case open. Hazardous voltage exposure is possible.
Avoid exposed circuitry. Do not touch exposed connections and components
when power is present.
Do not operate with suspected failures. If you suspect that there is damage to this
product, have it inspected by qualified service personnel.
Disable the product if it is damaged. Do not use the product if it is damaged
or operates incorrectly. If in doubt about safety of the product, turn it off and
disconnect the power cord. Clearly mark the product to prevent its further
operation.
Before use, inspect accessories for mechanical damage and replace when
damaged. Do not use them if they are damaged, or if there is exposed metal.
Examine the exterior of the product before you use it. Look for cracks or missing
pieces.
Use only specified replacement parts.
Do not operate in wet/damp conditions. Be aware that condensation may occur if
a unit is moved from a cold to a warm environment.
Do not operate in an explosive atmosphere.
Keep product surfaces clean and dry. Remove the input signals before you clean
the product.
Provide a safe working environment. Always place the product in a location
convenient for viewing the display and indicators.
Be sure your work area meets applicable ergonomic standards. Consult with an
ergonomics professional to avoid stress injuries.
Sensor tip cables Maintain safe clearance from the sensor head and sensor tip cable while connected
to the energized circuit as recommended in this manual.
Remove the sensor tip cable and adapters from the test circuit when not in use.
Leave the sensor tip cable connected to the sensor head when not in use.
Use only correct Measurement Category (CAT), voltage, temperature, altitude,
and amperage rated sensor tip cables and accessories for any measurement.
Beware of high voltages. Understand the voltage ratings for the product you are
using and do not exceed those ratings. It is important to know and understand the
maximum measurement voltage rating of the product. The voltage rating depends
vi TIVM Series Measurement System User Manual

Important safety information
on the instrument and your application. Refer to the Specifications section of the
manual for more information.
WARNING. To prevent electrical shock, do not exceed the maximum measurement
or maximum voltage category.
Connect and disconnect properly.
CAUTION. To avoid damage to the equipment, de-energize the test circuit before
connecting or disconnecting the sensor tip cable.
Servicesafetysummary
The Servicesafetysummarysection contains additional information required to
safely perform service on the product. Only qualified personnel should perform
service procedures. Read this Service safety summary and the General safety
summary before performing any service procedures.
To avoid electric shock. Do not touch exposed connections.
Do not service alone. Do not perform internal service or adjustments of this
product unless another person capable of rendering first aid and resuscitation is
present.
Disconnect power. To avoid electric shock, switch off the product power and
disconnect the power cord from the mains power before removing any covers or
panels, or opening the case for servicing.
Use care when servicing with power on. Dangerous voltages or currents may exist
in this product. Disconnect power, remove battery (if applicable), and disconnect
test leads before removing protective panels, soldering, or replacing components.
Verify safety after repair. Always recheck ground continuity and mains dielectric
strength after performing a repair.
TIVM Series Measurement System User Manual vii

Important safety information
Termsinthismanual
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.
Isolated, electrically floating. The terms isolated,electrically floating,and
galvanically isolated are used in this document to indicate a measurement where
there is no direct conduction path to earth ground.
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.
When this symbol is marked on the product, be sure to consult the manual
to find out the nature of the potential hazards and any actions which have to
betakentoavoidthem. (Thissymbolmayalsobeusedtorefertheuserto
ratings in the manual.)
The following symbol(s) may appear on the product:
viii TIVM Series Measurement System User Manual

Preface
Preface
This document provides information for installing and using the Tektronix TIVM
Series IsoVu Measurement System. The measurement system offers a galvanically
isolated measurement solution for accurately resolving high bandwidth, low
voltage differential signals up to ±50 Vpk in the presence of large common
mode voltages with the best in class common mode rejection performance across
its bandwidth.
Key features
New IsoVu technology - galvanically isolated, floating, measurement system
Bandwidth from DC to 1 GHz
> 120 dB (1 million to 1 common mode rejection ratio) from DC to
100 MHz and 80 dB (10,000 to 1) at 1 GHz
Differential voltages up to ±50 Vpk (depending on sensor tip)
Large common mode voltage range up to 2 kV
Laser certification
This product complies with 21 CFR 1040.10 and 1040.11 except for deviations
pursuant to Laser Notice No. 50, dated June 24, 2007.
CAUTION. Useofcontrolsoradjustmentsforperformanceofproceduresother
than those specified herein may result in hazardous radiation exposure.
TIVM Series Measurement System User Manual ix

Preface
Product description
The Tektronix TIVM Series IsoVu Measurement System offers a completely
galvanically isolated (optical isolation) system. The system consists of a sensor
tip cable, a sensor head, a controller, and a TekVPI interface as shown in the
following figure. Hazardous voltages in the sensor head are completely isolated
from the controller and oscilloscope by optical fiber cables.
Figure i: TIVM Series IsoVu Measurement System
Comp box The TekVPI compensation box (Comp box) connects the measurement system
to one of the input channels on the oscilloscope. Power is supplied to the
measurement system through the TekVPI interface of the oscilloscope.
Controller The controller connects to the oscilloscope through a coaxial cable and the Comp
box. Buttons and indicators on the controller provide a means for controlling the
measurement system and indicating the overall status.
x TIVM Series Measurement System User Manual

Preface
Sensor head The sensor head provides an interface between the device-under-test (DUT) and
the controller. It contains an electro-optic converter that converts the electrical
signal from the sensor tip cables to an optical signal sent to the controller.
Sensor tip cables Different sensor tip cables are available to connect the measurement system to
the DUT. The sensor tip cable consists of an SMA connector that connects to the
sensor head; two screws to secure the sensor tip cable to the sensor head; the other
end of the sensor tip cable connects to the DUT through an MMCX connector
and optional adapters.
Models
The TIVM Series IsoVu Measurement System includes the following models:
TIVM1. Tektronix IsoVu 1 GHz Medium Voltage with 3 m cable
TIVM1L. Tektronix IsoVu 1 GHz Medium Voltage with 10 m cable
TIVM05. Tektronix IsoVu 500 MHz Medium Voltage with 3 m cable
TIVM05L. Tektronix IsoVu 500 MHz Medium Voltage with 10 m cable
TIVM02. Tektronix IsoVu 200 MHz Medium Voltage with 3 m cable
TIVM02L. Tektronix IsoVu 200 MHz Medium Voltage with 10 m cable
Supported oscilloscopes
The measurement system can be used with the following Tektronix oscilloscopes.
For oscilloscopes not included in this list, contact your local Tektronix
representative.
MDO3000 series
MSO/DPO4000B series
MDO4000B/C series
MSO/DPO5000B series
DPO7000C series
In addition to the above oscilloscopes, the measurement system can also be used
with the following oscilloscopes with a TCA-VPI50 adapter.
MSO/DPO70000C series
MSO/DPO70000DX series
DPO70000SX series
TIVM Series Measurement System User Manual xi

Preface
xii TIVM Series Measurement System User Manual

Operating information
Accessories
This section lists the standard and optional accessories available for the
measurement system.
Standard accessories Table 1: Standard accessories
Accessory
Tektronix
part number
IsoVu product carrying case, soft case 016-2108-xx
IsoVu accessories carrying case, soft case 016-2110-xx
Solder aid for 0.062-inch (1.57 mm) pitch square pins (0.016 - 0.018-inch
(0.4 - 0.46 mm) square pin installation tool)
003-1946-xx
5X Sensor tip cable IVTIP5X
25X Sensor tip cable IVTIP25X
5/16-inch SMA wrench/driver tool 003-1947-xx
Probe tip adapter (blue), MMCX to 0.1-inch (2.54 mm) square pin
(0.025-inch (0.635 mm) square pins)
131-9717-xx
Probe tip adapter (white), MMCX to 0.062-inch (1.57 mm) square pin (0.016
- 0.018-inch (0.4 - 0.46 mm) square pins)
131-9677-xx
DUT Interface pin kit with (qty. 20) 0.018-inch (0.46 mm) round solder-in
pins
020-3169-xx
Flexible tripod with quick release 352-1171-xx
Flexible tripod feet, 3 each 344-0693-xx
Probe tip tripod support with living hinge, 2 each 352-1170-xx
Certificate of traceable calibration —
Data calibration report —
TIVM Series Measurement System User Manual 1

Operating information
Optional accessories Additional accessories, such as other sensor tip cables are available. The
following table lists the optional accessories.
Table 2: Optional accessories
Accessory
Tektronix
part number
1X Sensor tip cable IVTIP1X
10X Sensor tip cable IVTIP10X
50X Sensor tip cable IVTIP50X
Operating considerations
Read this section before installing your measurement system to be aware of the
operating requirements and clearance requirements including possible hazardous
areas when the measurement system is connected to the DUT.
Measurement system
handling best practices
The measurement system consists of quality parts and should be treated with care
to avoid damage or degrading the performance due to mishandling. Consider the
following precautions when handling the fiber-optic cables and sensor tip cables:
Do not crush, crimp, or sharply bend the fiber-optic cable. Avoid making
loops in the fiber-optic cable smaller than 5 inches (12.7 cm).
Do not twist the fiber-optic cable; twisting the cable will stress the optical
fibers.
Do not allow kinks or knots to develop in the fiber-optic cable.
Avoid putting tension on the fiber-optic cable.
Do not pull or jerk the fiber-optic cable, especially when kinks or knots are
present.
Do not drop the sensor head or controller assembly since damage and
misalignment of the internal optical components can result.
Avoid over-bending the sensor tip cables; do not exceed the minimum bend
radius of 2.0 inches (5.1 cm).
Avoid crushing the cables by accidentally running over the cable with a chair
wheel or by dropping a heavy object onto the cable.
Never support the weight of the sensor head or controller by the fiber-optic
cable.
Store the measurement system in the supplied carrying case when not in use.
2 TIVM Series Measurement System User Manual