LeCroy DA18000AC Instruction Manual
LeCroy DA18000AC
Differential Amplifier
Instruction Manual
Revision A – June 2006
LeCroy Corporation
700 Chestnut Ridge Road
Chestnut Ridge, NY 10977-6499
Tel: (845) 578-6020, Fax: (845) 578-5985
Internet: www.lecroy.com
Warr anty
LeCroy warrants this oscilloscope accessory for normal use and operation within specification for a
period of one year from the date of shipment. Spare parts, replacement parts and repairs are warranted for 90 days.
In exercising its warranty, LeCroy, at its option, will either repair or replace any assembly returned
within its warranty period to the Customer Service Department or an authorized service center.
However, this will be done only if the product is determined by LeCroy’s examination to be defective
due to workmanship or materials, and the defect is not caused by misuse, neglect, accident, abnormal conditions of operation, or damage resulting from attempted repair or modifications by a nonauthorized service facility.
The customer will be responsible for the transportation and insurance charges for the return of products to the service facility. LeCroy will return all products under warranty with transportation charges
prepaid
This warranty replaces all other warranties, expressed or implied, including but not limited to any
implied warranty of merchantability, 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.
© 2006 by LeCroy Corporation. All rights reserved.
LeCroy, ActiveDSO, WaveLink, JitterTrack, WavePro, WaveMaster, WaveSurfer, and
Waverunner are registered trademarks of LeCroy Corporation. Other product or brand
names are trademarks or requested trademarks of their respective holders. Information in
this publication supersedes all earlier versions. Specifications subject to change without
notice.
Manufactured under an
ISO 9000 Registered
Quality Management System
Visit www.lecroy.com to view the
certificate.
DA18000AC-OM-E Rev A
914190-00 Rev A
This electronic product is subject to disposal and recycling
regulations that vary by country
and region. Many countries prohibit the disposal of waste electronic equipment in standard
waste receptacles.
For more information about
proper disposal and recycling of
your LeCroy product, please
visit www.lecroy.com/recycle.
DECLARATION OF CONFORMITY
according to ISO/IEC Guide 22 and EN 45014:1998
Manufacturer’s Name: LeCroy Corporation
Manufacturer’s Address: 700 Chestnut Ridge Road
herewith declare that
Product(s) Name: Differential Probe
Model Number(s): DA18000AC
including all their options are in conformity with the provisions of the following EC directive(s), including the latest
amendments, and with national legislation implementing these directives:
and that conformity with Council Directive 73/23/EEC is based on
EN 61010-031: 2002 Safety requirements for electrical equipment for measurement, con-
and that conformity with Council Directive 89/336/EEC is based on
EN 61326/A3:2003 EMC requirements for electrical equipment for measurement, con-
Emissions EN 55011/A2:2002 Radiated Emissions
Immunity: EN 61000-4-2/A2:2001 Electrostatic Discharge
Chestnut Ridge, NY 10977
USA
73/23/EEC Low Voltage Directive
89/336/EEC EMC Directive
trol and laboratory use
Part 031: Safety requirements for hand -held amplifier assemblies for
electrical measurement and test
trol and laboratory use
EN 61000-4-3/A1:2003 RF Radiated Electromagnetic Field
By: Scott Bausback European Contact:
Chief Operating Officer Your local LeCroy Sales Office or
Place: LeCroy Corporation LeCroy Europe GmbH
700 Chestnut Ridge Road Waldhofer Str. 104
Chestnut Ridge, NY 10977 D-69123 Heidelberg
USA Germany
Date: June 12, 2006 Tel: (49) 6221 82700
Warning: This is a Class A product. In a domestic environment this product may cause radio interference, in
which case the user may be required to take adequate measures.
DA18000AC-OM-E Rev A iii
Fax: (49) 6221 834655
BLANK PAGE
iv A18000AC-OM-E Rev A
Table of Contents
Safety Information ............................................................................. 1-1
SAFETY SYMBOLS ...........................................................................................1-1
OPERATOR SAFETY ........................................................................................1-1
OPERATING ENVIRONMENT ..........................................................................1-2
Overview ............................................................................................. 2-1
DESCRIPTION ..................................................................................................2-1
APPLICATIONS .................................................................................................2-1
STANDARD ACCESSORIES ............................................................................2-1
Components and Accessories ......................................................... 3-1
STANDARD ACCESSORIES ............................................................................3-1
Type K Input Leads ....................................................................................3-1
Type K ³2 Attenuator ..................................................................................3-1
Operation ............................................................................................ 4-1
HANDLING THE AMPLIFIER ............................................................................4-1
TYPE K CONNECTORS ....................................................................................4-1
COMPATIBILITY ................................................................................................4-1
CONNECTING THE AMPLIFIER TO A LECROY SERIAL DATA ANALYZER .4-1
AUTOCOLOR ID ................................................................................................4-2
OPERATION WITH THE SDA 18000 ................................................................4-2
CONNECTING THE AMPLIFIER TO THE TEST CIRCUIT ...............................4-3
Type K Input Leads ....................................................................................4-3
USE OF DC ³2 ATTENUATOR ..........................................................................4-4
GROUNDING .....................................................................................................4-4
DYNAMIC RANGE .............................................................................................4-4
Care and Maintenance ....................................................................... 5-1
CLEANING ........................................................................................................5-1
SERVICE STRATEGY .......................................................................................5-1
RETURNING AN AMPLIFIER FOR CALIBRATION OR SERVICE ...................5-1
RETURNING AN AMPLIFIER TO A DIFFERENT COUNTRY ..........................5-2
REPLACEMENT PARTS ...................................................................................5-2
Reference Information ....................................................................... 6-1
DIFFERENTIAL MODE AND COMMON MODE ...............................................6-1
DIFFERENTIAL MODE RANGE AND COMMON MODE RANGE ....................6-1
COMMON MODE REJECTION RATIO .............................................................6-2
Performance Verification .................................................................. 7-1
INTRODUCTION ...............................................................................................7-1
TEST EQUIPMENT REQUIRED .......................................................................7-1
DA18000AC-OM-E Rev A v
DA18000AC Differential Amplifier
PRELIMINARY PROCEDURE .......................................................................... 7-2
VERIFICATION PROCEDURE ......................................................................... 7-2
Rise Time (20-80%) ................................................................................... 7-2
Specifications ..................................................................................... 8-1
NOMINAL CHARACTERISTICS ....................................................................... 8-1
General ...................................................................................................... 8-1
WARRANTED CHARACTERISTICS ................................................................ 8-1
TYPICAL CHARACTERISTICS ........................................................................ 8-2
ENVIRONMENTAL CHARACTERISTICS ........................................................ 8-3
PHYSICAL CHARACTERISTICS ...................................................................... 8-3
COMPLIANCE AND CERTIFICATIONS ........................................................... 8-4
CE Declaration of Conformity ..................................................................... 8-4
Appendix A ......................................................................................... A-1
PERFORMANCE VERIFICATION TEST RECORD .........................................A-1
ITEMS TESTED ................................................................................................A-1
EQUIPMENT USED: .........................................................................................A-1
TEST RECORD .................................................................................................A-1
vi DA18000AC-OM-E Rev A
Safety Information
1Safety Information
SAFETY SYMBOLS
The following symbols appear on the DA18000AC Differential Amplifier or in this manual
and alert the customer to important safety considerations.
Refer to the accompanying information or document to protect against
personal injury or damage to the instrument.
The CAUTION sign indicates a potential hazard. It calls attention to a
procedure, practice or condition, which, if not followed, could possibly
cause damage to the equipment. If a CAUTION is indicated, do not pro-
CAUTION
WARNING
CAUTION
OPERATOR SAFETY
To avoid personal injury and to prevent damage to the probe or any products connected to it,
review the following safety precautions. To avoid potential hazards, use the probe only as
specified.
ceed until its conditions are fully understood and met.
The WARNING sign indicates a potential hazard. It calls attention to a
procedure, practice or condition which, if not followed, could possibly
cause bodily injury or death. If a WARNING is indicated, do not proceed
until its conditions are fully understood and met.
The ESD sign indicates a potential hazard. It calls attention to the susceptibility of the equipment to Electrostatic Discharge (ESD) induced
damage if anti-static measures are not taken.
To avoid damage to the amplifier or personal injury, comply with the
following:
ESD Sensitive: The amplifier tips of the DA18000AC amplifier are sensitive to electrostatic discharge (ESD). To avoid causing damage to the
amplifier, always follow anti-static procedures (wear wrist strap, etc.)
CAUTION
when using or handling the amplifier.
Connect amplifier to the measurement instrument before connecting
the probe test leads to a circuit/signal being tested.
CAUTION
Using the amplifier and/or the oscilloscope it is connected to in a manner other than that specified may impair their protection mechanisms.
CAUTION
Do not apply a voltage to any input that exceeds the maximum rating of
that input. (Section 9, Specifications).
WARNING
DA18000AC-OM-E Rev A 1-1
DA18000AC Differential Amplifier
Handle the probe with care as it has sharp tips that may cause bodily
injury if not handled properly.
WARNING
Do not use the amplifier in wet or explosive atmospheres.
WARNING
Do not use the amplifier if any part is damaged. All maintenance should
be referred to qualified service personnel.
CAUTION
OPERATING ENVIRONMENT
The DA18000AC Differential Amplifier is intended for indoor use and should be operated in
a clean, dry environment.
The design of the differential amplifier has been verified to conform to EN 61010-031 safety
standard per the following limits:
• Installation (Overvoltage) Category I: Refers to signal level which is applicable for
equipment measuring terminals that are connected to source circuits in which
measures are taken to limit transient voltages to an appropriate low level.
• Pollution Degree 2: Refers to an operating environment where normally only dry
non-conductive pollution occurs. Occasionally a temporary conductivity caused by
condensation must be expected.
###
1-2 DA18000AC-OM-E Rev A
Overview
2Overview
DESCRIPTION
The DA18000AC Differential Amplifier is a very high bandwidth differential amplifier with
50 Ω inputs and high common mode rejection, and is designed to be used exclusively with
the SDA 18000 Serial Data Analyzer.
The amplifier contains common circuitry such as power supply, communication and control
and AutoColor ID. The DA18000AC amplifier utilizes digital filtering to improve the system
frequency response. The response is corrected through the use of digital filters which are
specifically tailored through calibration to optimize the frequency flatness of the amplifier.
This provides the highest fidelity in eye pattern measurements.
Certificate of Calibration is supplied with each amplifier indicating that the system will meet
the specifications with those components listed in the Certificate.
ESD Sensitive: The inputs of the DA18000AC amplifier are sensitive to
Electrostatic Discharge (ESD). To avoid causing damage to the amplifier, always follow anti-static procedures (wear wrist strap, etc.) when
CAUTION
APPLICATIONS
The DA18000AC amplifier is ideally suited for acquiring differential signals common in high
speed serial data applications with fine pitch ICs and high lead count where high speed,
minimal loading and accurate jitter measurement are required.
• System Designers:
Designing systems using standard and ASIC components Use simulators and correlate
with lab measurements
• IC Designers:
Characterize new chip design
• Manufacturers of servers, PC Motherboards, Data routers, Disk drives
• High-speed SERDES
using or handling the type K connectors.
STANDARD ACCESSORIES
• Matched type K Input Cables (1 pair)
• Type K 6 dB attenuators (2)
• SAC-01 Soft Accessory Case with insert
• ESD Dissipating Wrist Strap
• DA18000AC Instruction Manual
• Certificate of Calibration
DA18000AC-OM-E Rev A 2-1
###
DA18000AC Differential Amplifier
BLANK PAGE
2-2 DA18000AC-OM-E Rev A
Components and Accessories
3Components and Accessories
STANDARD ACCESSORIES
Type K Input Leads
Type K ÷2 Attenuator
A matched pair of 50 Ω type K
Input Leads is provided for
direct cable connection to
female type K connectors of
the amplifier.
The type K attenuator can be
used to extend the differential
mode range or to improve the
VSWR by reducing reflections.
DA18000AC-OM-E Rev A 3-1
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