Tektronix TIVH Series User manual

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TIVH Series
IsoVu™ Measurement System
ZZZ
User Manual
*P071355600*
071-3556-00

TIVH Series
IsoVu™ Measurement System
ZZZ
User Manual
xx
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071-3556-00

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..................................................................................... xii
Operating information.............................................................................................. 1
Accessories..................................................................................................... 1
Operating considerations...................................................................................... 2
Controls and indicators........................................................................................ 7
Connecting to a circuit ....................................................................................... 10
Self calibration ................................................................................................ 13
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
Input coupling (AC or DC) .................................................................................. 22
Application examples ............................................................................................. 23
Example 1: High-side VGS and VDS measurement......................................................... 23
Example 2: High-side VDS measurement................................................................... 25
Example 3: High-side drain current measurement........................................................ 26
Example 4: ESD troubleshooting........................................................................... 27
Reference information ............................................................................................ 29
Specifications.................................................................................................. 29
Dimensional drawings........................................................................................ 38
IsoVu measurement system block diagram ................................................................ 41
Tripods......................................................................................................... 42
TIVH Series Measurement System User Manual i

Table of Contents
Connecting the sensor tip cables ............................................................................ 44
Installing the probe tip adapters ....... ...................................................................... 45
Installing the square pins on the circuit board ............. ................ ................ ................ 48
User service ........................................................................................................ 51
Service offerings.............................................................................................. 51
Preventive maintenance...................................................................................... 51
Performanceverification procedures ....................................................................... 52
Propagation delay............................................................................................. 53
Troubleshooting and error conditions ...................................................................... 56
Repack the measurement system for shipment............................................................ 58
Test record..................................................................................................... 59
Appendix A: Remote programming............................................................................. 61
CH<n>:PRObe?............................................................................................... 61
CH<n>:PRObe:AUTOZero EXECute ..................................................................... 61
CH<n>:PRObe:COMMAND “CLAMP”, {“ON” | “OFF”}............................................. 61
CH<n>:PRObe:SET {“CLAMP ON” | “CLAMP OFF”}................................................ 61
CH<n>:PRObe:SET {“CLAMPING ON” | “CLAMPING OFF”} ..................................... 62
CH<n>:PRObe:FORCEDRange <NR3> .................................................................. 62
CH<n>:PRObe:GAIN? ...................................................................................... 62
CH<n>:PRObe:ID {:SERnumber | :TYPe}? .............................................................. 63
CH<n>:PRObe:PROPDELay?.............................................................................. 63
CH<n>:PRObe:RECDESkew?.............................................................................. 63
CH<n>:PRObe:RESistance? ................................................................................ 63
CH<n>:PRObe:UNIts?....................................................................................... 63
CH<n>:PROBECOntrol {AUTO | MAN}................................................................. 64
CH<n>:PROBEFunc:EXTAtten <NR3>................................................................... 64
CH<n>:PROBEFunc:EXTDBatten? ....................................................................... 64
Appendix B: Compliance information .......................................................................... 65
Safety compliance ............................................................................................ 65
Environmental considerations............................................................................... 67
Index
ii TIVH Series Measurement System User Manual

List of Figures
Figure i: TIVH 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: VGS and VDS switching characteristics.............................................................. 26
Figure 18: High side current shunt .............................................................................. 26
Figure 19: SMT resistor model .................................................................................. 27
Figure 20: ESD discharge test example......................................................................... 28
Figure 21: Typical CMRR values for 1X SMA cable and MMCX series probe tip cables ............... 33
Figure 22: Typical CMRR values for square pin probe tips .................................................. 34
Figure 23: Maximum differential input voltage vs. frequency for MMCX series probe tips ......... .... 35
Figure 24: Maximum differential input voltage vs. frequency for square pin probe tips ................. 35
Figure 25: Differential input impedance vs. frequency chart for the MMCX series probe tips .. ........ 36
Figure 26: Differential input impedance vs. frequency chart for the square pin probe tips............... 37
Figure 27: Sensor head dimensions with probe tip cover..................................................... 38
Figure 28: Sensor head dimensions without probe tip cover ................................................. 39
Figure 29: Controller dimensions................................................................................ 39
Figure 30: Comp box dimensions ............................................................................... 40
Figure 31: Probe tip adapter dimensions........................................................................ 40
Figure 32: Block diagram ........................................................................................ 41
Figure 33: Installing the flexible tripod under the DUT....................................................... 42
Figure 34: Connecting the sensor head to the top of the DUT with the flexible tripod.................... 42
Figure 35: Connecting to an adapter on the circuit board with the probe tip tripod ....................... 43
Figure 36: Square pin series sensor tip cables.................................................................. 44
Figure 37: Lining up the MMCX-to-0.1-inch (2.54 mm) adapter on the circuit board.................... 45
TIVH Series Measurement System User Manual iii

Table of Contents
Figure 38: Lining up the MMCX-to-0.062-inch (1.57 mm) adapter on the circuit board ................. 46
Figure 39: Pushing the MMCX-to-0.062-inch (1.57 mm) adapter in place................................. 46
Figure 40: Pushing the MMCX-to-0.1-inch (2.54 mm) adapter in place.................................... 47
Figure 41: Adapter clearance requirements .................................................................... 48
Figure 42: Removing the header from square pins on the circuit board..................................... 49
Figure 43: Using the soldering aide to install the square pins on the circuit board ........................ 50
Figure 44: Propagation delay measurement.................................................................... 56
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 ................................................................................ 37
Table 11: Required equipment for performance verification ................................................. 52
Table 12: Problems and possible solutions ..................................................................... 56
Table 13: Test record.............................................................................................. 59
Table 14: Sensor tip cables and dynamic ranges............................................................... 62
iv TIVH 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.
TIVH 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 it from the instrument. 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 TIVH Series Measurement System User Manual

Important safety information
on the measurement category, 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.
TIVH 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 TIVH Series Measurement System User Manual

Preface
Preface
This document provides information for installing and using the Tektronix TIVH
Series IsoVu Measurement System. The measurement system offers a galvanically
isolated measurement solution for accurately resolving high bandwidth, high
voltage differential signals up to 2500 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 800 MHz (sensor tip cable dependent)
160 dB (100 million to 1 common mode rejection ratio) from DC to1 MHz,
120 dB (1 million to 1) at 100 MHz, 80 dB (10,000 to 1) at 800 MHz
Differential voltages up to ±2500 Vpk (sensor tip cable dependent)
Large common mode voltage range up to 60 kV peak
High impedance input up to 40 MΩ(sensor tip cable dependent)
Large input offset range up to ±2500 Vpk (sensor tip cable dependent)
DC and AC input coupling
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.
TIVH Series Measurement System User Manual ix

Preface
Product description
The Tektronix TIVH 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: TIVH 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 TIVH 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 Several sensor tip cables options are available to connect the sensor head to the
DUT:
MMCX10X, 10X tip cable connector
MMCX50X, 50X tip cable connector
MMCX250X, 250X tip cable connector
SQPIN100X, 100X 0.1-inch (2.54 mm) square pin connector
SQPIN500X, 500X 0.1-inch (2.54 mm) square pin connector
WSQPIN1000X, 1000X 0.2-inch (5.08 mm) square pin connector
WSQPIN2500X, 2500X 0.2-inch (5.08 mm) square pin connector
Models
The TIVH Series IsoVu Measurement System includes the following models:
TIVH08. Tektronix IsoVu 800 MHz High Voltage with 3 m cable
TIVH08L. Tektronix IsoVu 800 MHz High Voltage with 10 m cable
TIVH05. Tektronix IsoVu 500 MHz High Voltage with 3 m cable
TIVH05L. Tektronix IsoVu 500 MHz High Voltage with 10 m cable
TIVH02. Tektronix IsoVu 200 MHz High Voltage with 3 m cable
TIVH02L. Tektronix IsoVu 200 MHz High Voltage with 10 m cable
TIVH Series Measurement System User Manual xi

Preface
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.
5SeriesMSO
MDO3000 Series (WSQPIN tip cables require V1.26 or later oscilloscope
firmware)
MDO4000C Series (WSQPIN tip cables require V1.06 or later oscilloscope
firmware)
MSO/DPO/MDO4000B Series (WSQPIN tip cables are not compatible)
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
xii TIVH 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
50X Sensor tip cable (MMCX-to-SMA) MMCX50X
500X Sensor tip cable (Square pin-to-SMA) SQPIN500X
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
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
User manual (this document) 071-3556-xx
Certificate of traceable calibration —
TIVH Series Measurement System User Manual 1