LeCroy DA18000 Instruction Manual

LeCroy

DA18000

Differential Amplifier

Instruction Manual

December 2006

LeCroy Corporation
700 Chestnut Ridge Road
Chestnut Ridge, NY 10977-6499
Tel: [phone], Fax: [phone]

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, WaveJet, 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.

DA18000-OM-E Rev A
914715-00 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 Amplifier

Model Number(s): DA18000

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: [phone]

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.

DA18000-OM-E Rev A iii

Fax: [phone]

BLANK PAGE

iv DA18000-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

2.92 mm Input Cables ................................................................................3-1

2.92 mm÷2 Attenuator ................................................................................3-1

Operation ............................................................................................ 4-1

HANDLING THE AMPLIFIER ............................................................................4-1

2.92 MM 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

2.92 mm Input Cables ................................................................................4-3

USE OF DC ÷2 ATTENUATOR .........................................................................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

PRELIMINARY PROCEDURE ...........................................................................7-2

DA18000-OM-E Rev A v

DA18000 Differential Amplifier

VERIFICATION PROCEDURE ......................................................................... 7-2

1. Rise Time (20-80%) ............................................................................... 7-2

2. Voltage Gain Accuracy............................................................................ 7-5

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

EC 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 DA18000-OM-E Rev A

Safety Information

1Safety Information

SAFETY SYMBOLS

The following symbols appear on the DA18000 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

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 DA18000 amplifier are sensi­tive to electrostatic discharge (ESD). To avoid causing damage to the
amplifier, always follow anti-static procedures (wear wrist strap, etc.)
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

DA18000-OM-E Rev A 1-1

DA18000 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 DA18000 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 DA18000-OM-E Rev A

Overview

2Overview

DESCRIPTION

The DA18000 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 DA18000 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 DA18000 amplifier are sensitive to
Electrostatic Discharge (ESD). To avoid causing damage to the ampli­fier, always follow anti-static procedures (wear wrist strap, etc.) when
using or handling the 2.92 mm connectors.

APPLICATIONS

The DA18000 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

STANDARD ACCESSORIES

• Matched 2.92 mm Input Cables (1 pair)

• 2.92 mm 6 dB attenuators (2)

• SAC-01 Soft Accessory Case with insert

• ESD Dissipating Wrist Strap

• DA18000 Instruction Manual

• Certificate of Calibration

DA18000-OM-E Rev A 2-1

§ § §

DA18000 Differential Amplifier

BLANK PAGE

2-2 DA18000-OM-E Rev A

Components and Accessories

3Components and Accessories

STANDARD ACCESSORIES

2.92 mm Input Cables

2.92 mm ÷2 Attenuator

A matched pair of 50 Ω

2.92 mm Input Cable is pro­vided for direct cable connec­tion to female 2.92 mm
connectors of the amplifier.

The 2.92 mm attenuator can
be used to extend the differen­tial mode range or to improve
the VSWR by reducing reflec­tions.

DA18000-OM-E Rev A 3-1

§ § §