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ZS1000 High Impedance Active Probe

7–4

ZS1000-OM-E Rev C

PROCEDURE

A. Output Zero Voltage

1. Connect one end of a BNC cable to the female BNC connector on 

the probe end of the ProBus extender cable. Connect the precision 
50 

 terminator to the other end of the BNC cable.

2. Connect the banana plugs of the Precision terminator to the input of 

the DMM. Make sure that the plug corresponding to the BNC shield 
(marked "Ground") is connected to the 

LO

 or 

COMMON

 input of the 

DMM. Refer to Figure 7-1 for setup information.

Figure 7-1. Output Zero Voltage Test Setup

3. Set the 

OFFSET

 on the oscilloscope to zero.

4. Set the DMM to read DC Volt on the most sensitive range.

5. Record the voltage measured on the DMM to 10 µV resolution as 

"Output Zero Voltage" in the Test record.

6. Check that the voltage indicated by the DMM is between ±800 

µ

V.

7. Disconnect the DMM from the precision 50 

 terminator. Leave the 

remaining setup in place for the next step.

B. LF Attenuation Accuracy

1. Disconnect the BNC tee at the power supply from the dual banana 

plug adapter. Connect the BNC tee to the output of the function gen-

Содержание ZS1000

Страница 1: ...ZS1000 High Impedance Active Probe Instruction Manual February 2007 ...

Страница 2: ...tability fitness or adequacy for any particular purposes or use LeCroy shall not be liable for any special incidental or consequential damages whether in contract or otherwise Corporate Headquarters 700 Chestnut Ridge Road Chestnut Ridge NY 10977 6499 Tel 845 578 6020 Fax 845 578 5985 Internet www lecroy com Copyright 2007 by LeCroy Corporation All rights reserved LeCroy ActiveDSO JitterTrack Wave...

Страница 3: ...r measurement control and laboratory use and that conformity with Council Directive 89 336 EEC is based on EN 61326 A3 2003 EMC requirements for electrical equipment for measurement control and laboratory use Emissions EN 55011 A2 2002 Conducted and Radiated Emissions Immunity EN 61000 4 2 A2 2001 Electrostatic Discharge EN 61000 4 3 A1 2003 RF Radiated Electromagnetic Field By David C Graef Europ...

Страница 4: ...iv ZS1000 OM E Rev C BLANK PAGE ...

Страница 5: ... of Standard and Optional Accessories 3 1 A Tips 3 1 B Grounds 3 3 C Leads 3 6 Operation Handling the Probe 4 1 Connecting the Probe to the Test Instrument 4 1 Connecting the Probe to the Test Circuit 4 1 Operation with a LeCroy Oscilloscope 4 1 High Frequency Measurements Input Loading 5 1 Inductive Loading Lead Length 5 1 Capacitive Loading 5 2 Care and Maintenance Cleaning 6 1 Calibration Inter...

Страница 6: ... Procedure Introduction 8 1 Test Equipment Required 8 1 Preliminary Procedure 8 2 Procedure 8 3 A Adjust Output Zero 8 3 B Verify Calibration 8 4 Specifications Nominal Characteristics 9 1 Warranted Characteristics 9 1 Typical Characteristics 9 1 Environmental Characteristics 9 2 Physical Characteristics 9 2 Compliance and Certifications 9 3 Appendix A Performance Verification Test Record A 1 Equi...

Страница 7: ... instrument before con necting probe input to test circuit Do not disconnect probe from test instrument while the test leads are connected to a voltage source Do not apply any potential to the input which exceeds the maxi mum ratings of the probe section 9 Specifications Comply with the voltage derating curve When measuring high fre quency signals be sure to comply with the voltage versus frequenc...

Страница 8: ...IS MANUAL The following conventions may appear in this manual Note A Note contains information relating to the use of the product CAUTION A Caution contains information that should be followed to avoid possible damage to the probe or the products connected to it This symbol appears on the product This refers you to additional information contained in this manual The corresponding information in th...

Страница 9: ...aveRunner WaveMaster and WavePro series platforms with firmware version 4 9 3 or later With the ProBus interface the ZS1000 becomes an integral part of the oscilloscope The probe can be controlled from the oscilloscope s front panel The oscilloscope provides power to the probe so there is no need for a separate power supply or batteries KEY BENEFITS High frequency performance Low input capacitance...

Страница 10: ...ad 1 Instruction Manual 1 Certificate of calibration 1 Y lead Adapter 1 Color Coding Rings 4 sets OPTIONAL ACCESSORIES The following items are available as optional accessories for the ZS1000 probe IC Lead Tip Discrete SMD Tip Bent Sharp Tip Bendable Pogo Ground Ground Spring with Hook Solder in Ground Square Pin Ground Spring Short Right angle Lead Long Right angle Lead For part number informatio...

Страница 11: ...re pins for direct access to test points Several different adapters are available which connect directly in the probe socket The ground socket will accept several different ground leads to provide a short ground path for high frequency per formance DESCRIPTION OF STANDARD AND OPTIONAL ACCESSORIES The following accessories can be pushed into the probe tip socket ground socket or any other socketed ...

Страница 12: ...d to be tested It is one size fits all and will work with any IC lead pitch Fits in either probe socket The IC Lead Tip is an optional accessory for the ZS1000 PACC PT003 package of 4 Discrete SMD Tip The crescent shape of this tip is designed to fit tightly on capacitors resistors transis tors and other surface mount components with discrete leads Fits in either probe socket The SMD Discrete Tip ...

Страница 13: ...a pen cil Fits in either probe socket The Bent Sharp Tip is an optional accessory for the ZS1000 PACC PT005 package of 4 B Grounds Micro Clip 0 5 mm Sprung Hook A pincher like spring hook tip designed to hold onto fine pitch leads and small compo nents commonly found in SMD ICs Fits in either probe socket or can be used with a lead The Sprung Hook is a stan dard accessory for the ZS1000 and availa...

Страница 14: ... the end of the spring so that it can probe general circuits The Ground Spring with Hook is an optional acces sory for the ZS1000 PACC LD001 package of 4 Square Pin Ground Spring A flexible spring connected to a square pin that fits into either of the probe sockets Designed to be attached to a square pin on the circuit under test The square pin ground spring is an optional accessory for the ZS1000...

Страница 15: ...nal and ground that are extremely close together The short length pro vides high quality grounding for high frequency applications PK ZS 002 package of 4 Ground Blade and Copper Pad The Ground Blade and Copper Pad are intended to work together for the best grounding solution for prob ing an IC The Ground Blade is designed to pro vide a short low induc tance ground path The Copper Pad is adhesive b...

Страница 16: ...information Short and Long Lead This lead has a socket on one end and a square pin on the other to connect to the input or ground socket of the probe body and may be used for general purpose probing PK ZS 003 short PK ZS 004 long packages of 4 Y Lead Adapter This lead is used for both ground and input lead simultaneously It has two sockets on one end and two square pins on the other and may be use...

Страница 17: ...t applications care must be exercised in connecting the probe to the test circuit Increasing the parasitic capacitance or inductance in the input paths may introduce a ring or slow the rise time of fast signals Input leads which form a large loop area will pick up any radiated electromagnetic field which passes through the loop and may induce noise into the probe input Using one of the available a...

Страница 18: ...ZS1000 High Impedance Active Probe 4 2 ZS1000 OM E Rev C BLANK PAGE ...

Страница 19: ...turn path for the current resulting from the input voltage acting on the probe s input impedance The ground lead and input lead inductances act with the probe s input capacitance to form series L C network The impedance of a series LC network will drop dramatically at its resonant frequency This is the cause of the ring we often see after the leading edge of pulses in measured wave forms This effe...

Страница 20: ... for the shortest lead length for the best signal fidelity To illustrate how dramatic this effect is we will work a simple example Assuming an input capacitance of 0 9 pF and a total lead length input and ground of 2 inches inductance of 25 nH inch such a setup may cause ringing with a resonant frequency f0 of This frequency is well within the passband of the probe and will there fore show up as p...

Страница 21: ... time will be 0 495 ns which will correspond to a band width of 909 MHz assuming no inductive loads trise 2 2 x 0 9 X 10 12 x 250 Ω 0 495 ns parallel combination of 250 Ω and 1 MΩ is still 250 Ω Figure 5 2 Probe input equivalent circuit To illustrate the effect of capacitive loading at higher frequencies At a frequency of 750 MHz the reactance of the 0 9 pF capacitance is 236 Ω and at 1 0 GHz the ...

Страница 22: ... where Zprobe is the probe s input impedance and Zsource is the source impedance As an example At 750 MHz where the probe input impedance has reduced to 236 Ω and a source resistance of 250 Ω the probe output amplitude is reduced to Vout 236 236 250 0 49 Vin ...

Страница 23: ...ility for diagnosis and exchange A defective probe under warranty will be replaced with a factory refur bished probe A probe that is not under warranty can be exchanged for a factory refurbished probe for a modest fee You must return the defec tive probe in order to receive credit for the probe core RETURNING A DEFECTIVE PROBE The procedure for returning a defective probe is as follows Contact you...

Страница 24: ... avoid damage in transit 6 Mark the outside of the box with the shipping address given to you by the LeCroy representative be sure to add the following ATTN RAN assigned by the LeCroy representative FRAGILE 7 Insure the item for the replacement cost of the probe 8 Ship the package to the appropriate address REPLACEMENT PARTS The probe connection accessories and other common parts can be ordered th...

Страница 25: ...Care and Maintenance ZS1000 OM E Rev C 6 3 Figure 6 1 Replaceable Parts Selected by Input and Ground Accessory ...

Страница 26: ...le Connector PK ZS 006 4 Sprung Hook Red PK ZS 007R 4 Sprung Hook Black PK ZS 007B 4 Ground Blade PK ZS 008 4 Copper Pad PK ZS 009 4 Color Coding Rings PK ZS 010 4 sets IC Lead Tip PACC PT003 4 Discrete SMD Tip PACC PT004 4 Bent Sharp Tip PACC PT005 4 Solder In Ground PACC CD007 2 Bendable Pogo Ground PACC CD008 2 Ground Spring with Hook PACC LD001 4 Square Pin Ground Spring PACC LD002 4 Short Rig...

Страница 27: ... only be attempted if a parameter measured in the Performance Verifica tion Procedure is outside the specification limits Note Adjustment should only be performed by qualified personnel This procedure tests the following specifications Output Zero Voltage LF Attenuation Accuracy TEST EQUIPMENT REQUIRED Table 7 1 lists the test equipment and accessories or their equivalents that are required for pe...

Страница 28: ... probe is connected Set the oscillo scope scale factor to 20 mV div Description Minimum Requirements Test Equipment Examples Digital Oscilloscope ProBus interface Windows based LeCroy WaveRunner Xi or WaveSurfer Xs Digital Multimeter DMM with test probe leads 4 5 digit DC 0 1 Accuracy AC 0 1 accuracy Agilent Technologies 34401A or Fluke 8842A 09 Function Generator Sine Wave output amplitude adjust...

Страница 29: ...n his procedure Note The correct operation of the ZS1000 controls requires software version 5 0 0 2 or higher The software version in the test oscilloscope can be verified by selecting Utilities Utilities Setup from the menu bar then the Status tab Contact your local LeCroy representative or visit www lecroy com if the software in your oscilloscope requires updating FUNCTIONAL CHECK The functional...

Страница 30: ...COMMON input of the DMM Refer to Figure 7 1 for setup information Figure 7 1 Output Zero Voltage Test Setup 3 Set the OFFSET on the oscilloscope to zero 4 Set the DMM to read DC Volt on the most sensitive range 5 Record the voltage measured on the DMM to 10 µV resolution as Output Zero Voltage in the Test record 6 Check that the voltage indicated by the DMM is between 800 µV 7 Disconnect the DMM f...

Страница 31: ... of the function generator Use a 50 Ω termination if the function generator requires such a load 4 Attach a BNC cable to the unused female port of the BNC tee and connect a dual banana plug adapter to the other end of the cable and plug the dual banana plug adapter into the DMM input Make sure the side of the banana plug adapter corresponding to the BNC shield marked GROUND is connected to the LOW...

Страница 32: ... Record 11 Calculate the error by dividing the measured top range output volt age recorded in step B10 by the expected top range output voltage recorded in step B 8 Subtract 1 from this ratio and multiply by 100 to get the error in percent 12 Record the calculated error to two decimal places 0 xx as Gain Error top range in the test record 13 Verify that the error is less than 1 0 14 Disconnect the...

Страница 33: ...sured Output Voltage mid range in the Test record 22 Calculate the error by dividing the measured mid range output volt age recorded in step B 21 by the expected mid range output voltage recorded in step B 19 Subtract 1 from this ratio and multiply by 100 to get the error in percent 23 Record the calculated error to two decimal places 0 xx as Gain Error mid range in the Test record 24 Verify that ...

Страница 34: ...ZS1000 High Impedance Active Probe 7 8 ZS1000 OM E Rev C BLANK PAGE ...

Страница 35: ...n and inspect the probe as outlined in the Care and Mainte nance section To assure the probe will meet the published specifications over the entire temperature range adjustment must be performed in a controlled ambient environment with temperature of 23 C 5 C The adjustment procedure will require removal of the probe control cir cuit cover This cover is part of the ESD protection system of the ZS1...

Страница 36: ...l to line up all six pins of the probe connec tor Connect the male end of the ProBus extension cable to channel 1 of the oscilloscope Description Minimum Requirements Test Equipment Examples Digital Oscilloscope ProBus interface Windows based LeCroy WaveRunner Xi or WaveSurfer Xs Digital Multimeter DMM with test probe leads 4 5 digit DC 0 1 Accuracy AC 0 1 accuracy Agilent Technologies 34401A or F...

Страница 37: ...ecision 50 Ω terminator to the input of the DMM Make sure the plug corresponding to the BNC shield marked Ground is connected to the LO or COMMON input of the DMM Refer to Figure 8 1 for setup information Figure 8 1 Output Zero Voltage Adjustment Setup 3 Select the channel to which the probe and ProBus extender is con nected Set OFFSET on the oscilloscope to zero as indicated on the on screen disp...

Страница 38: ...e case being careful to align the ProBus interface connector with the opening on the other end of the probe Figure 8 2 Adjustment Locations C Verify Calibration Repeat the Performance Verification procedure to ensure compliance with the warranted specifications Apply a calibration sticker if required in accordance with your quality control procedures ...

Страница 39: ... input voltage vs frequency derating See Figure 9 1 WARRANTED CHARACTERISTICS Warranted characteristics are parameters with guaranteed perfor mance Unless otherwise noted tests are provided in the Performance Verification Procedure for all warranted specifications Low Frequency Attenuation Accuracy 0 50 plus uncertainty of 50 Ω termi nation Output Zero 2 mV referred to the input TYPICAL CHARACTERI...

Страница 40: ...ty 80 max up to 31 C decreasing lin early to 45 max at 50 C Altitude up to 2000 m PHYSICAL CHARACTERISTICS Probe Head Size Length 61 mm 2 4 in Width 7 3 mm 0 29 in Height 13 1 mm 0 52 in Cable Length 1 3 m 51 1 in Weight Probe only 100 g 3 5 oz Shipping 0 85 kg 1 87 lbs Input Sockets Signal and ground sockets are com patible with 0 635 mm 0 025 in square pins and 0 91 mm 0 036 in maximum diameter ...

Страница 41: ...quirements for electrical equipment for measurement control and laboratory use Part 031 Particular requirements for hand held probe assemblies for elec trical measurement and test EMC Directive EN 61326 A3 2003 EMC requirements for electrical equip ment for measurement control and laboratory use Input Voltage vs Frequency 0 1 1 10 100 1 10 100 1000 10000 Frequency MHz Voltage V AC pk ...

Страница 42: ...N 61000 4 3 A1 2003 RF Radiated Electromagnetic Field 80 MHz to 1 GHz 3 V m Toxic or Hazardous Substances and Elements Part Name Lead Pb Mercury Hg Cadmium Cd Hexavalent Chromium Cr6 Polybrominated Biphenyls PBB Polybrominated Diphenyl Ethers PBDE PCBAs X O X X X X Mechanical Hardware O O X O O O Sheet Metal O O X O O O Plastic Parts O O O O X X Protective Case O O O O X X Cable Assemblies X O X O...

Страница 43: ...of this Manual O Indicates that this toxic or hazardous substance contained in all of the homogeneous materials for this part is below the limit requirement specified in SJ T11363 2006 X Indicates that this toxic or hazardous substance contained in at least one of the homogenous materials used for this part is above the limit requirement specified in SJ T11363 2006 ...

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Страница 45: ... the individual data records correspond to the steps in the procedure that require the recording of data Results to be recorded in the column labeled Test Result are the actual specification limit check The test limits are included in all of these steps Other measurements and the results of intermediate calculations that support the limit check are to be recorded in the column labeled Intermediate...

Страница 46: ...ge A 5 Output Zero Voltage Test limit 800 µV _____________ V LF Attenuation Accuracy B 7 Generator Output Voltage ______________ V B 8 Expected Output Voltage top range ______________ V B 10 Measured Output Voltage top range ______________ V B 12 Gain Error top range Test limit 1 0 ______________ B 17 Generator Output Voltage ______________ V B 19 Expected Output Voltage mid range ______________ V...

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