Ten Things to Consider When Selecting Your Next Oscilloscope

Application Note 1490

scopes you are considering,carefully analyzing eachone in relation to the tenissues discussed hereinwill help you evaluatethe instrumentsobjectively.

As you start the scopeselection process, you

probably have a pricerange in mind. The price of

a scope will depend on manyfactors including bandwidth,

sample rate, number of channels,and memory depth. If you shopfor a scope based upon pricealone, you may end up with onelacking the performance youneed. Instead, think in terms ofvalue. If your budget is tight, youmay want to consider renting ascope or purchasing usedequipment.

After reading this document, youshould have all the informationrequired to choose the bestpossible scope for yourapplications.

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . .1

1. How much bandwidth do

you need? . . . . . . . . . . . . . . . . . . . . . .2

2. How many channels do

you need? . . . . . . . . . . . . . . . . . . . . . .3

3. What are your sample rate

requirements? . . . . . . . . . . . . . . . . . . 4

4. How much memory depth do

you need? . . . . . . . . . . . . . . . . . . . . . .5

5. What display capability do

you need? . . . . . . . . . . . . . . . . . . . . . .6

6. What triggering capabilities do

you need? . . . . . . . . . . . . . . . . . . . . . .7

7. What is the best way to probe

your signal? . . . . . . . . . . . . . . . . . . . . 8

8. What documentation and

connectivity features do you need? 9

9. How will you analyze your

waveforms? . . . . . . . . . . . . . . . . . . . 10

10. Last but not least—demo,

demo, demo!. . . . . . . . . . . . . . . . . . . 11

Conclusion . . . . . . . . . . . . . . . . . . . . . . 11

Glossary . . . . . . . . . . . . . . . . . . . . . . . . 12

Support, Services, and Assistance . . 14

Introduction

You rely on your oscilloscopeevery day, so selecting the rightone to meet your needs is animportant task. Comparing thespecs and features of scopesmade by different manufacturerscan be time-consuming andconfusing. The concepts outlinedin this article are intended toaccelerate your selection process and help you avoid some commonpitfalls. No matter who makes the

2

Bandwidth is the most importantproperty of the oscilloscope as itdetermines the range of signals tobe displayed and, to a largeextent, the price. You need tobalance present budgetlimitations with the expectedneeds of your lab over the lifetimeof the scope when making yourbandwidth decision.

In the present era of the digitizingoscilloscope, there is more toscope bandwidth than just thebandwidth of the analogamplifiers. To ensure a scope hasenough bandwidth for yourapplications, take into accountthe bandwidths of the signals youexpect to display with the scope.With modern digital technologies,

Figure 1: Identical square waves on oscilloscopes with different bandwidths

the system clock is usually thehighest-frequency signal thescope is likely to display. Yourscope should have a bandwidth atleast three times greater than thisfrequency in order to obtain areasonable display of thewaveform.

The signals’ risetimes are anothercharacteristic that determines therequired bandwidth of yourscope. Since it is likely you will bedisplaying more than pure sinewaves, your signals will containharmonics at frequencies beyondthe fundamental one. Forexample, if you are viewing asquare wave, the signal actuallycontains frequencies that are atleast ten times the fundamental

frequency of the signal. If you donot ensure proper scopebandwidth, rounded edges will bedisplayed on your scope insteadof the clean, fast edges you wereexpecting. This, in turn, willaffect the accuracy of yourmeasurements.

Fortunately, there are three verysimple equations that will help indetermining the proper scopebandwidth given your signalcharacteristics:

1How much bandwidth do you need?

1 GHz oscilloscope

12 GHz oscilloscope

signal bandwidth =2 • signal risetime

1

scope bandwidth = 2 • signal bandwidth (2)

signal RTSR = 4 • scope bandwidth (3)

(1)

*RTSR = real-time sampling rate

3

The number of channels mayseem like a simple issue if youthink all oscilloscopes still comewith only two or four channels.However, digital content iseverywhere in modern designsand traditional two- and fourchannel oscilloscopes do notalways provide the requirednumber of channels. If you haveever encountered this situationthen you understand thefrustration involved in eitherbuilding external triggeringhardware or writing specialsoftware to isolate activities ofinterest.

For today’s increasingly digitalworld, a new breed ofoscilloscopes has enhanced theirutility in digital and embeddeddebug applications. These mixed signal oscilloscopes (commonly

referred to as MSOs) tightlyinterleave an additional sixteenlogic timing channels with thetwo or four channels of atraditional oscilloscope. Theresult is a fully functionaloscilloscope with up to twentychannels of time-correlatedtriggering, acquisition, andviewing.

An example of how a mixed-signaloscilloscope can be used fordebugging is a common SDRAMapplication. To isolate an SDRAMwrite cycle, you would need totrigger on a combination of fivedifferent signals: RAS, CAS, WE,CS, and the Clock. A 4-channelscope by itself is not sufficient forthis basic measurement

2How many channels do you need?

Figure 2 shows how the sixteenlogic timing channels were usedto set a trigger on RAS high, CASlow, WE high, and CS. Scopechannel 1 is used to view andtrigger on the rising edge of theclock. Unlike a combined logicanalyzer and oscilloscope solutionwhere the logic analyzer can onlycross-trigger the oscilloscope andvice-versa, a mixed-signal oscilloscope allows you to dofull-width triggering across both the scope and logic timing channels..

Figure 2: Six-channel measurement: Data line during a write trigger

on RAS, CAS, WE, CS and CLK.

4

Sample rate is a very importantspecification to consider whenevaluating an oscilloscope. Whypoint this out? Most oscilloscopescan increase their sample rate byincorporating a form ofinterleaving. This is accomplishedwhen two or more channelscouple their A/D converters toprovide a maximized sample rateon only one or two channels of afour-channel oscilloscope. Thebanner specification of theoscilloscope will emphasize thismaximized sample rate and willnot state that the sample rateapplies to only one channel! Ifyou are interested in purchasinga 4-channel scope, it is a giventhat you want full bandwidth onmore than a single channel.

Recall from Equation 3 (page 2)that the sample rate of a scopeshould be at minimum four timesgreater than its bandwidth. The4x multiplier is beneficial whenthe scope is using a form ofdigital reconstruction such as

sin(x)/x interpolation. In caseswhere the scope is not employinga form of digital reconstruction,the multiplier should actually be10x. Since most oscilloscopesemploy some form of digitalreconstruction, the 4x multipliershould be sufficient.

Consider an example using a 12GHz oscilloscope that employssin(x)/x interpolation. For thisoscilloscope, the minimum perchannel sample rate to support a full 12 GHz bandwidth on eachchannel equals 4 x (12 GHz), or48 GSa/s per channel. A 12 GHzscope may advertise a maximum64 GSa/s sampling rate, but fail topoint out that the 64 GSa/ssampling rate is applicable on onechannel only. The per-channelsample rate of this scope, whenusing either three or fourchannels, is actually only 16 GSa/s—insufficient to support the 12GHz bandwidth on more than acouple of channels.

3What are your sample rate requirements?

Another way to look at sample rate is to determine the resolution desired between points of acquisition. Sample rate is simply the inverse of the resolution. For example, the sample rate that can provide 1 ns resolution between points is 1/(1 ns) = 1 GSa/s.

In conclusion, make sure the scope you consider has enough sample rate per channel for every channel that may be used simultaneously. This way each channel can support the rated bandwidth of the scope.

5

4How much memory depth do you need?

As you read in the previousconsiderations, bandwidth andsample rate are closely related.Memory depth is also tightlyrelated to sample rate. An A/Dconverter digitizes the inputwaveform and the resulting datais stored into the scope’s highspeed memory. An importantselection factor is to understandhow the oscilloscope you areconsidering uses this storedinformation.

Memory technology enables usersto capture an acquisition andzoom in to see more detail.Performing math, measurements,and post-processing functions onacquired data is also possiblewith this technology.

Many people assume anoscilloscope’s maximum samplingrate specification applies to alltime base settings. The price ofsuch an oscilloscope would behuge as it would require a verylarge memory. In actuality, the

memory depth is limited and,therefore, all oscilloscopes mustreduce their sampling speed asthe time base is set to widerranges. The deeper the scope’smemory, the more time can becaptured at full sampling speed.You need to check the scopeunder consideration to see howits sampling speed is affected bythe time base setting.

The required memory depthyou need is dependent upon theamount of time you wantdisplayed, as well as the samplerate you want to maintain. If youare interested in looking at longerperiods of time with highresolution between points, youneed deep memory. A simpleequation can tell you how muchmemory you will need, given timespan and sample rate:

Figure 3: These images show an 80-MHz square wave acquired at a slow sweep speed

(1-ms/div) on a scope with 2-Mpts memory setting (left) and a 2-kpts memory setting

(right). The 2-Mpts deep memory maintains adequate sample rate to prevent aliasing.

When the memory is reduced to 2-kpts, the sample rate drops by a factor of 1000. This

reduced sample rate causes the scope to undersample the signal, resulting in an aliased

signal of 155-Mz frequency. Although the waveform on the right looks correct, it is not.

The frequency of the waveform is off by 79.9-MHz.

Ensuring a high sample rate across all

time settings can protect you against

signal aliasing and provide more detail

on the waveforms should you need

to zoom in and examine them more

closely.

Once you have determined your

memory depth, it is equally

important to see how the scope

operates when using the deepest

memory setting. Scopes with

traditional deep-memory

architectures respond sluggishly

which can negatively impact your

productivity. Due to the slow

responsiveness, scope manufacturers

often relegated deep memory to a spe-

cial mode and engineers typically used

it only when deep memory was

essential. Although scope

manufacturers have made advances in

deep memory architectures over the

years, some deep-memory

architectures are still slow and

time-consuming to operate. Before

you purchase a scope, make sure to

evaluate the responsiveness of the

scope in the deepest memory setting.

memory depth = sample rate • TAD (4)

*TAD = time across display

6

Ultimately, all oscilloscopesuppliers know they are sellingthe display of your waveforms. Inthe days of analog oscilloscopes,the design features of the scope’sCRT display determined thequality of the picture. However,the modern digital oscilloscope’sdisplay performance is largely afunction of digital processingalgorithms and not the physicalcharacteristics of the displaydevice itself.

Today’s digitizing oscilloscopesfall into two broad categories:waveform viewers and waveformanalyzers. Those scopes designedfor viewing are usually seen intest and troubleshootingapplications. In theseapplications, it is the display ofthe waveform that provides allthe necessary information. Inwaveform analysis applications,Microsoft® Windows® operatingsystems and advanced analysisfunctions allow additional levelsof abstraction to determine how asystem under test is performing.

One major factor in the quality ofthe display is the update rate ofyour oscilloscope. The updaterate refers to the rate at whichthe oscilloscope is able to acquireand update the display of awaveform. Therefore, fasterupdate rates improve theprobability that infrequent eventslike the one seen in Figure 4 arecaptured. For example, theAgilent 7000, 6000 and 5000 Series oscilloscopes have update rates of up to 100,000 waveforms per second. This would enable you to capture a glitch twice

per second on average if the glitch occurred every 50,000 cycles. On the other hand, some oscilloscopes possess update rates of 800 waveforms per second. It would take these oscilloscopes one minute on average to catch the same glitch.

You must be careful whencomparing update rates asvendors quote the best possibleupdate rate their scopes canachieve. However, specialacquisition modes are oftenrequired to obtain these bannerspecifications. These specialmodes can severely limit theperformance of the scope in areassuch as memory depth, samplerate, and waveformreconstruction. The Agilent 7000, 6000 and 5000 Series oscilloscopes discussed above do not require any special acquisition mode to obtain the up to 100,000waveforms per second updaterate.

5What display capability do you need?

Numerous other factors, such asthe number of channels beingused, can also limit the updaterate of your oscilloscope.Therefore, it is best to determinewhat performance and setupsyou will need and then test theoscilloscope's update rate forthese specific conditions.

In general, judging anoscilloscope's display capabiltiesbased solely upon specificationsreleased from the vendor isunwise. Comparing the displaysof multiple scopes requires a livedemo in your lab to determinewhich scope has the ability todisplay exactly what you need tosee.

Figure 4: Infrequent event captured by an Agilent 6000 Series oscilloscope.

7

6What triggering capabilities do you need?

Edge triggering is widely utilizedby general-purpose scope users.However, it may be helpful tohave additional triggering powerin some applications as advancedtriggering allows you to isolatespecific events. For example, indigital applications, it is veryhelpful to trigger on a certainpattern across channels. Themixed-signal oscilloscope enablesyou to trigger across a pattern oflogic and scope channels. With acombined scope/logic analyzersolution, you can only crosstrigger the two instruments by means of cabling their respective in/out trigger signals together.

For serial designers, someoscilloscopes even come standardwith serial triggering protocolsfor such standards as SPI, CAN,USB, I2C, FlexRay, and LIN. These

advanced triggering options cansave a significant amount of timein day-to-day debugging tasks.

What if you need to capturean infrequent event? Glitchtriggering allows you to triggeron a positive- or negative-goingglitch, or on a pulse greater thanor less than a specified width.These features are especiallypowerful when troubleshooting.as you can trigger on the faultand look back in time to see whatcaused the problem.

Additionally, many scopes on themarket today provide triggeringcapability for TV, HDTV, andvideo applications. Using ascope’s television trigger, you cantrigger on the field and specificline you need to view.

Figure 5: Trigger menu from an Agilent 6000 Series oscilloscope.

8

The probe you choose isimportant because the systembandwidth—the bandwidth of thescope/probe combination—islimited by the lesser of the twobandwidths. Consider, forexample, a 1 GHz scope coupledwith a 500 MHz passive probe.The system bandwidth of thecombination is 500 MHz. It isworthless to purchase a 1 GHzscope if you will only get 500 MHzbandwidth due to your probe!

Additionally, every time youconnect a probe, the probebecomes part of the circuit undertest. The probe tip is basically ashort transmission line. Thistransmission line is a resonantL-C tank circuit and, at the 1/4wave frequency of thetransmission line, the impedanceof the L-C tank circuit will bedriven close to zero which willload your device under test. Youcan easily see the loading of theresonant L-C tank circuit in theslower risetimes and ringing on the signal.

7What is the best way to probe your signal?

1

-1

0

Volts

0 2010Time (ns)

Figure 7: 250 ps risetime signal probed

with a 2.5 GHz probe and a damped 2 inch

connection accessory.

Active probes not only providegreater bandwidths than passiveprobes, but they can also mitigatesome of the transmission-lineeffects you see when you connecta probe to a device under test(DUT). Agilent Technologies hasminimized the signal loading andresulting signal distortion byincorporating resistive “damped”tips and accessories with theiractive probes. These dampedaccessories prevent the resonantL-C tank circuit impedance fromgoing too low—thus, preventingthe ringing and signal distortioncaused by loading the signal.

Additionally, the dampedaccessories enable the frequencyresponse of the probes to remainflat throughout the entirebandwidth of the probe. Witha flat response, you can ensureagainst signal distortionthroughout the entire bandwidthof the probe

With the signal distortion issuesolved, the next step is to ensureyour probe is capable of fullbandwidth even when you areusing probe head accessories.Agilent InfiniiMax probesoptimize the probe bandwidth byusing a controlled transmissionline between the probe amplifierand probe tip. Using a singleamplifier, you can connect avariety of differential or single-ended probe heads (including browsing, socketed, solder-in, and SMA) and obtain full system bandwidth. Additionally, the probe amplifier is actually separated from the probe tip by a controlled transmission line so you can easily obtain access totight probing spaces.

The key here is to understand the bandwidth rating of the probe when using a variety of probe heads and accessories as these can significantly degrade aprobe’s performance..

Figure 6: 250 ps risetime signal probed

with a 2.5 GHz probe and an undamped 2

inch connection accessory.

1

-1

0

Volts

0 2010Time (ns)

9

8What documentation and connectivity features do you need?

Many digitizing oscilloscopes nowhave the connectivity you find onpersonal computers includingGPIB, RS-232, LAN, and USB 2.0interfaces. Therefore, it is mucheasier to send pictures to aprinter or transfer data to a PCthan it was in the past.

Do you often transfer scope datato your PC? If so, then it will beimportant for your scope to haveat least one of the connectivityoptions listed above. A built-inCD-ROM or CD-RW drive canalso help in transferring data,although using them typicallyrequires more effort than sendinga file from your scope over a USBor LAN connection.

For affordable scopes that do nothave some of the connectivityoptions like LAN and USB, scopemanufacturers often providesoftware packages that enableyou to easily transport thewaveform images and data to aPC via GPIB or RS-232. If your PCdoes not have a GPIB card or youwant an easy way to transfer thewaveform to a laptop PC, youmight consider a USB/GPIB orLAN/GPIB interface.

Oscilloscopes also usually comewith multi-GB hard drives thatcan be used for data storage andremovable hard drives are nowavailable as well.

Another connectivity option issetting up a secure wireless LAN(WLAN). This is helpful if you areconstrained by the length of thecables required by a wiredconnection.

Shared access via a LANconnection may prove useful asseveral users can access the sameoscilloscope via a companyintranet or the Internet. Thisallows oscilloscopes to remain ina centralized location and forteams that are widely dispersedto work together on specificprototypes.

Some oscilloscopes, such as theAgilent 6000 Series, allow you toremotely control, display, andperform waveform analysis via aPC from any java-enabled webbrowser. Figure 8 shows anexample of the Virtual Panel foran Agilent 3000 Seriesoscilloscope displayed on a PC.Remote access to an oscilloscopecould, for example, enable a userto calibrate a scope from home sothe instrument was ready whenthe user arrived at work.

Determining ahead of time whatdegree of connectivity anddocumentation capability youwill need from your scope candrastically reduce the amount oftime you end up spendingtransferring and storing data.

Figure 8: Agilent 3000 Series oscilloscope's Virtual Panel allows you to have the look and

control of an oscilloscope while remotely controlling it from your computer.

10

Automatic measurements, built-inanalysis capability, and additionalapplication software can savetime and make your job easier.Digitizing oscilloscopes frequentlycome with an arrayof measurement features, analysisoptions, and software that are notavailable on analog scopes.

Math functions typically availableinclude addition, subtraction,multiplication, division,integration, and differentiation.Measurement statistics (min,max, and average) can quantifymeasurement uncertainty - avaluable asset whencharacterizing noise and timingmargins. Many digitizing scopesoffer FFT capability as well.

For the “power user” interested inwaveform analysis, oscilloscopemanufacturers are providinggreater flexibility in mid-rangeand high-performance scopes.Some manufacturers offersoftware packages that enableyou to customize complexmeasurements, perform mathfunctions, and do post-processingdirectly from the scope’s userinterface. You can write ameasurement routine in C++ orVisual Basic, for example, andexecute it from a menu on thescope’s graphical user interface(GUI). This functionalityeliminates the need to transferdata to an external PC, whichcan save a significant amountof time for those interested inwaveform analysis.

9What additional application software do you need?

Figure 9. Analog and RF designers

typically find advanced math functionality

and FFT capability important features for

their everyday scopes.

Figure 10. Digital designers commonly use

measurements such as histogramming to

evaluate signal integrity.

Figure 11: InfiniiScan measurement finder

identifies a glitch that occured between

65 ps and 75 ps.

Application software can also save a tremendous amount of time and allow you to make measurements that would otherwise be very difficult. One example of this software is Agilent's InfiniiScan. InfiniiScan is an identification software that quickly identifies signal integrity issues. It accompolishes this by scanning through thousands of waveforms and then isolating any anomalies in the signal.

PCIe compliance and validationsoftware offered by Agilent is another piece of application software. This software allows you to debug and test PCIe 1.1 and 2.0 designs. Other examples include software for serial data analysis and vector signal analysis.

It is important to investigate whatadditional software is available soyou do not fi nd yourself needinga function or measurement thatyour oscilloscope's software cannot handle.

11

Ease of use: During your trial,evaluate each scope’s ease of use.Are there dedicated knobs foroften-used adjustments likevertical sensitivity, time basespeed, trace position, and triggerlevel? How many buttons do youneed to push to go from oneoperation to the next? Can youoperate the scope intuitivelywhile concentrating on yourcircuit under test?

10Last but not least—demo, demo, demo!

Display responsiveness: As youevaluate the scopes, pay attentionto display responsivenesswhether you are using it fortroubleshooting applicationsor for gathering large quantitiesof data. When you change V/div,time/div, memory depth, andposition settings, does the scoperespond quickly? Try the samething with measurement featuresturned on. Is the responsenoticeably slower?

Conclusion

After you have thought about all these issues and have evaluated the scopes, you should have a good idea of which models will truly meet your needs. If you’re still unsure, you may want to discuss the choices with other scope users or call the manufacturer’s technical support staff.

Thinking through the previous nine considerations most likely enabled you to narrow the field to a limited number of oscilloscopes that meet your selection criteria. Now is the time to try them out and perform a side-by-side comparison. Borrow the scopes for a few days so you have time to evaluate them thoroughly. Some factors to consider as you useeach scope include:

12

Glossary

Aliased signals A signal (normally electrical) sampled below the Nyquist Rate (twice the maximum frequency content of the signal) so that the frequency content of signal is erroneously rearranged.

CAN Controller area network, a robust serial communication bus standard popular in automotive and industrial applications.

Digitizing oscilloscope an oscilloscope that uses a high-speed analog-to-digital converter (ADC) to measure signals and then displays them on a screen (CRT or LCD) using standard computer graphics techniques.

GPIB General-purpose instrument bus, also know as the IEEE-488 bus, widely used as an interface for connecting test instruments to computers and for providing programmable instrument control.

Harmonics a frequency component of a signal that is an integral multiple of the fundamental of that signal.

I2C Inter integrated circuit bus, a short-distance serial communication bus standard consisting of two signals (clock and data), popular for talking between several integrated circuits on the same printed circuit board.

Interleave A technique used in digitizing oscilloscopes whereby ADCs of different analog channels are used together, normally resulting in higher sample rate or more memory depth when you are using fewer channels.

L-C tank circuit A circuit consisting of inductance and capacitance, capable of storing electricity over a band of frequencies continuously distributed about a single frequency at which the circuit is said to be resonant or tuned.

LIN Local interconnect network, a short-distance serial communication standard that is often found in systems also containing the CAN bus. LIN is slower and less complex than the CAN bus.

Mixed-signal oscilloscopes (MSOs) Digitizing oscilloscopes that have a larger number of channels than usual for looking at both analog and digital signals. MSOs typically have two or four analog channels and at least 8 bits of vertical resolution. There are usually 16 digital channels but they typically have only 1 bit of vertical resolution.

SDRAM Synchronous dynamic random-access memory, the most popular form of digital memory today. It differs from previous-generation DRAM in that all signal timing is relative to one clock.

SPI Serial peripheral interface, a very simple short-distance serial communication bus standard consisting of either two (clock and data) or three (clock, data and strobe) signals, popular for reading data from microcontroller peripherals such as ADCs.

USB Universal serial bus, an interface for connecting peripherals, including test instruments, to computers.

13

Publication TitlePublication

TypePublication

Number

Agilent 5000 Series Portable Oscilloscopes Data sheet 5989-6110EN

Agilent 6000 Series Oscilloscopes Data sheet 5989-2000EN

Agilent 7000 Series Oscilloscopes Data sheet 5989-7736EN

Agilent Infi niium 8000 Series Oscilloscopes Data sheet 5989-4271EN

Agilent Infi niium 9000 Series Oscilloscopes Data sheet 5990-3746EN

Agilent Infi niium 90000 Series Oscilloscopes Data sheet 5989-7819EN

Infi niium Oscilloscope Probes, Accessories, and Options Data sheet 5968-7141EN

Agilent 5000 and 6000 Series Oscilloscope Probes and

Accessories

Data sheet 5968-8153EN

Agilent 82357A USB/GPIB Interface for Windows Data sheet 5988-5028EN

Deep Memory Oscilloscopes: The New Tools of Choice Application note 5988-9106EN

Evaluating Oscilloscope Sample Rates vs. Fidelity: Accurate

Digital Measurements

Applicaion note 5989-5732EN

Choosing an Oscilloscope with the Right Bandwidth for

your Application

Application note 5989-5733EN

For copies of this literature, contact your Agilent representative or visit

www.agilent.com/find/scopes

Agilent Technologies Oscilloscopes

Multiple form factors from 20 MHz to >90 GHz | Industry leading specs | Powerful applications

Agilent Email Updates

www.agilent.com/fi nd/emailupdates

Get the latest information on the

products and applications you select.

Agilent Direct

www.agilent.com/fi nd/agilentdirect

Quickly choose and use your test

equipment solutions with confi dence.

www.agilent.com

Microsoft® and Windows® are U.S. registered

trademarks of Microsoft Corporation.

For more information on Agilent Tech-nologies’ products, applications or services, please contact your local Agilent office. The

complete list is available at:

www.agilent.com/find/contactus

AmericasCanada (877) 894 4414 Brazil (11) 4197 3600Mexico 01800 5064 800 United States (800) 829 4444

Asia Pacifi cAustralia 1 800 629 485China 800 810 0189Hong Kong 800 938 693India 1 800 112 929Japan 0120 (421) 345Korea 080 769 0800Malaysia 1 800 888 848Singapore 1 800 375 8100Taiwan 0800 047 866Other AP Countries (65) 375 8100

Europe & Middle EastBelgium 32 (0) 2 404 93 40 Denmark 45 45 80 12 15Finland 358 (0) 10 855 2100France 0825 010 700* *0.125 €/minute

Germany 49 (0) 7031 464 6333 Ireland 1890 924 204Israel 972-3-9288-504/544Italy 39 02 92 60 8484Netherlands 31 (0) 20 547 2111Spain 34 (91) 631 3300Sweden 0200-88 22 55United Kingdom 44 (0) 118 927 6201

For other unlisted countries: www.agilent.com/find/contactusRevised: January 6, 2012

Product specifications and descriptions in this document subject to change without notice.

© Agilent Technologies, Inc. 2012Published in USA, May 15, 20125989-0552EN

Agilent Advantage Services is committed

to your success throughout your equip-

ment’s lifetime. To keep you competitive,

we continually invest in tools and

processes that speed up calibration and

repair and reduce your cost of ownership.

You can also use Infoline Web Services

to manage equipment and services more

effectively. By sharing our measurement

and service expertise, we help you create

the products that change our world.

www.agilent.com/quality

www.agilent.com/find/advantageservices

www.lxistandard.org

LAN eXtensions for Instruments puts

the power of Ethernet and the Web

inside your test systems. Agilent is a

founding member of the LXI consor-

tium.

Agilent Channel Partners

www.agilent.com/find/channelpartners

Get the best of both worlds: Agilent’s

measurement expertise and product

breadth, combined with channel

partner convenience.

www.axiestandard.org

AdvancedTCA® Extensions for

Instrumentation and Test (AXIe) is

an open standard that extends the

AdvancedTCA for general purpose

and semiconductor test. Agilent

is a founding member of the AXIe

consortium.

www.pxisa.org

PCI eXtensions for Instrumentation

(PXI) modular instrumentation

delivers a rugged, PC-based high-per-

formance measurement and automa-

tion system.

TM