Agilent Technologies U2722A User manual

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Agilent Technologies
Agilent U2722A/U2723A
USB Modular Source
Measure Units
User’s Guide

II U2722A/U2723A User’s Guide
Notices
© Agilent Technologies, Inc., 2009 - 2011
No part of this manual may be reproduced in
any form or by any means (including elec-
tronic storage and retrieval or translation
into a foreign language) without prior agree-
ment and written consent from Agilent
Technologies, Inc. as governed by United
States and international copyright laws.
Manual Part Number
U2722-90011
Edition
Fourth Edition, May 2011
Agilent Technologies, Inc.
5301 Stevens Creek Blvd.
Santa Clara, CA 95051 USA
Warranty
The material contained in this docu-
ment is provided “as is,” and is sub-
ject to being changed, without notice,
in future editions. Further, to the max-
imum extent permitted by applicable
law, Agilent disclaims all warranties,
either express or implied, with regard
to this manual and any information
contained herein, including but not
limited to the implied warranties of
merchantability and fitness for a par-
ticular purpose. Agilent shall not be
liable for errors or for incidental or
consequential damages in connec-
tion with the furnishing, use, or per-
formance of this document or of any
information contained herein. Should
Agilent and the user have a separate
written agreement with warranty
terms covering the material in this
document that conflict with these
terms, the warranty terms in the sep-
arate agreement shall control.
Technology Licenses
The hardware and or software described in
this document are furnished under a license
and may be used or copied only in accor-
dance with the terms of such license.
Restricted Rights Legend
U.S. Government Restricted Rights. Soft-
ware and technical data rights granted to
the federal government include only those
rights customarily provided to end user cus-
tomers. Agilent provides this customary
commercial license in Software and techni-
cal data pursuant to FAR 12.211 (Technical
Data) and 12.212 (Computer Software) and,
for the Department of Defense, DFARS
252.227-7015 (Technical Data - Commercial
Items) and DFARS 227.7202-3 (Rights in
Commercial Computer Software or Com-
puter Software Documentation).
Safety Notices
CAUTION
A CAUTION notice denotes a haz-
ard. It calls attention to an operat-
ing procedure, practice, or the like
that, if not correctly performed or
adhered to, could result in damage
to the product or loss of important
data. Do not proceed beyond a
CAUTION notice until the indicated
conditions are fully understood and
met.
WARNING
A WARNING notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly per-
formed or adhered to, could result
in personal injury or death. Do not
proceed beyond a WARNING
notice until the indicated condi-
tions are fully understood and
met.

U2722A/U2723A User’s Guide III
Safety Symbols
The following symbols on the instrument and in the documentation indicate precautions
which must be taken to maintain safe operation of the instrument.
Direct current (DC)
Equipment protected throughout by
double insulation or reinforced
insulation
Alternating current (AC) Off (supply)
Both direct and alternating current On (supply)
Three-phase alternating current Caution, risk of electric shock
Earth (ground) terminal Caution, risk of danger (refer to this manual
for specific Warning or Caution information)
Protective conductor terminal Caution, hot surface
Frame or chassis terminal Out position of a bi-stable push control
Equipotentiality In position of a bi-stable push control

IV U2722A/U2723A User’s Guide
General Safety Information
WARNING
• Do not use the device if it is damaged. Before you use the device,
inspect the casing. Look for cracks or missing plastic. Do not operate
the device around explosive gas, vapor, or dust.
• Always use the device with the cables provided.
• Observe all markings on the device before establishing any
connection.
• Turn off the device and application system power before connecting
to the I/O terminals.
• When servicing the device, use only the specified replacement parts.
• Do not operate the device with the cover removed or loosened.
• Do not connect any terminal block or cables prior to performing
self-test process.
• Use only the power adapter provided by the manufacturer to avoid
any unexpected hazards.
CAUTION
•Electrostatic discharge (ESD) can cause damage to the components in
the instrument and accessories. The cables or wires should be
connected to the plug-in connectors first and covered with the cable
casing prior to plugging it into the output connector to prevent ESD
from occurring. For more information on the cable installation, refer to
“Cable Installation" on page 27.
•If the device is used in a manner not specified by the manufacturer, the
device protection may be impaired.
•Always use dry cloth to clean the device. Do not use ethyl alcohol or
any other volatile liquid to clean the device.
•Do not permit any blockage of the ventilation holes of the device.

U2722A/U2723A User’s Guide V
Environmental Conditions
This instrument is designed for indoor use and in an area with low condensation. The table
below shows the general environmental requirements for this instrument.
Environmental conditions Requirements
Operating temperature 0 °C to 50 °C
Operating humidity 20% to 85% RH non-condensing
Storage temperature –20 °C to 70 °C
Storage humidity 5% to 90% RH non-condensing
NOTE
The U2722A/U2723A USB Modular Source Measure Units complies with
the following safety and EMC requirements:
•IEC 61326-1:2005/EN61326-1:2006
•Canada: ICES-001:2004
•Australia/New Zealand: AS/NZS CISPR11:2004
•IEC 61010-1:2001/EN 61010-1:2001 (2nd Edition)
•Canada: CAN/CSA-C22.2 No. 61010-1-04
•USA: ANSI/UL 61010-1:2004

VI U2722A/U2723A User’s Guide
Regulatory Markings
The CE mark is a registered trademark
of the European Community. This CE
mark shows that the product complies
with all the relevant European Legal
Directives.
The C-tick mark is a registered
trademark of the Spectrum
Management Agency of Australia. This
signifies compliance with
the Australia EMC Framework
regulations under the terms of the
Radio Communication Act of 1992.
ICES/NMB-001 indicates that this ISM
device complies with the Canadian
ICES-001.
Cet appareil ISM est confomre a la
norme NMB-001 du Canada.
This instrument complies with the
WEEE Directive (2002/96/EC) marking
requirement. This affixed product label
indicates that you must not discard
this electrical or electronic product in
domestic household waste.
The CSA mark is a registered
trademark of the Canadian Standards
Association.

U2722A/U2723A User’s Guide VII
Waste Electrical and Electronic Equipment (WEEE) Directive
2002/96/EC
This instrument complies with the WEEE Directive (2002/96/EC) marking requirement.
This affixed product label indicates that you must not discard this electrical or electronic
product in domestic household waste.
Product Category:
With reference to the equipment types in the WEEE directive Annex 1, this instrument is
classified as a “Monitoring and Control Instrument” product.
The affixed product label is as shown below.
Do not dispose in domestic household waste
To return this unwanted instrument, contact your nearest Agilent Technologies, or visit:
www.agilent.com/environment/product
for more information.

VIII U2722A/U2723A User’s Guide
In This Guide…
1 Getting Started
This chapter provides an overview of the U2722A/U2723A USB Modular Source Measure
Units, which includes the product outlook, product dimensions, and product layout. This
chapter also contains instructions on how to install and configure the U2722A/U2723A.
2 Operation and Features
This chapter describes the source voltage and source current operation mode of the
U2722A/U2723A USB Modular Source Measure Units. It also explains the importance of
remote sense and guarding when performing low current measurements. There is a section
that provides information on extending the U2722A/U2723A output power.
3 Characteristics and Specifications
This chapter specifies the characteristics, environmental conditions, and specifications of
the U2722A/U2723A.
Appendixes Appendix A: List of Self-Test Return Codes
The following table contains the list of codes you will obtain when performing self-test. The
interpretation for each code is also provided.
Appendix B: Time-out Settings
The following procedure provides the instructions on how to set the time-out value in the
Agilent IO Libraries.

U2722A/U2723A User’s Guide IX
Declaration of Conformity (DoC)
The Declaration of Conformity (DoC) for this instrument is available on
the Web site. You can search the DoC by its product model or description.
http://regulations.corporate.agilent.com/DoC/search.htm
NOTE
If you are unable to search for the respective DoC, please contact your
local Agilent representative.

X U2722A/U2723A User’s Guide

Table of Contents
U2722A/U2723A User’s Guide XI
Contents
1 Getting Started
Introduction 2
Product at a Glance 4
Product outlook 4
Product Dimensions 7
Dimensions without bumpers 7
Dimensions with bumpers 8
Standard Shipped Items 9
Inspection and Maintenance 10
Initial inspection 10
Electrical check 10
Ventilation 10
General maintenance 11
Installation and Configuration 12
Installation 12
A. Check your system 13
B. Install the IO Libraries Suite 14
C. Install the module driver 15
D. Install the Agilent Measurement Manager 16
E. Connect the module to your PC 17
F. Verify your module connection 22
G. Launch your Agilent Measurement Manager 23
Instrument Configuration 25
Cable Installation 27
Chassis Installation 29

Table of Contents
XII U2722A/U2723A User’s Guide
2 Operation and Features
Power Up 30
Sourcing and Measurement 31
Source voltage operation 32
Source current operation 36
Channel control using SCPI commands 39
Remote sense and guard 41
Making measurements 44
System-Related Operation 47
Self-test 47
Self-calibration 47
Error conditions 48
SCPI commands for system-related tasks 48
Extending the Output Power 49
Series connections 49
Parallel connections 50
Memory List 51
Memory list configuration 51
Memory list commands storing and restoring 52
Memory list delay setup 53
Memory list commands execution 54
Memory list commands execution state 58
3 Characteristics and Specifications
Product Characteristics 52
Product Specifications 53
4 Appendixes
Appendix A: List of Self-Test Return Codes 58
Appendix B: Time-out Settings 60

List of Figures
U2722A/U2723A User’s Guide XIII
List of Figures
Figure 1-1 Output connectors 25
Figure 1-2 55-pin backplane connector pin configuration 26
Figure 2-1 U2722A/U2723A fundamental concepts 31
Figure 2-2 Panel view of the Agilent Measurement Manager 32
Figure 2-3 Turning on the U2722A/U2723A 33
Figure 2-4 Turning off the U2722A/U2723A 33
Figure 2-5 Source voltage positive operating boundaries 34
Figure 2-6 Source voltage operation 35
Figure 2-7 Source current positive operating boundaries 37
Figure 2-8 Source current operation 38
Figure 2-9 Local sense connection 41
Figure 2-10 Remote sense connection 42
Figure 2-11 Guarded connection 43
Figure 2-12 Commands that control measurement time 45
Figure 2-13 U2722A/U2723A outputs connected in series 49
Figure 2-14 U2722A/U2723A outputs connected in parallel 50
Figure 2-15 Channel state and Status Operation Condition register bit for external
trigger 59
Figure 2-16 Channel state and Status Operation Condition register bit for remote
trigger 59

List of Figures
XIV U2722A/U2723A User’s Guide

List of Tables
U2722A/U2723A User’s Guide XV
List of Tables
Ta b l e 1 - 1 SSI connector pin description 26
Ta b l e 2 - 1 Type of commands that can be saved into the memory list 52
Ta b l e 2 - 2 Time delay set for each range when auto delay is enabled 54
Ta b l e 4 - 1 List of system-related return codes 58
Ta b l e 4 - 2 Time-out settings 60

List of Tables
XVI U2722A/U2723A User’s Guide

1
U2722A/U2723A USB Modular Source Measure Units
User’s Guide
Agilent Technologies
1
Getting Started
Introduction 2
Product at a Glance 4
Product outlook 4
Product Dimensions 7
Dimensions without bumpers 7
Dimensions with bumpers 8
Standard Shipped Items 9
Inspection and Maintenance 10
Initial inspection 10
Electrical check 10
Ventilation 10
General maintenance 11
Installation and Configuration 12
Installation 12
A. Check your system 13
B. Install the IO Libraries Suite 14
C. Install the module driver 15
D. Install the Agilent Measurement Manager 16
E. Connect the module to your PC 17
F. Verify your module connection 22
G. Launch your Agilent Measurement Manager 23
Instrument Configuration 25
Cable Installation 27
Chassis Installation 29
This chapter provides an overview of the U2722A/U2723A USB Modular
Source Measure Units, which includes the product outlook, product
dimensions, and product layout. This chapter also contains instructions on
how to install and configure the U2722A/U2723A.

1GettingStarted
2 U2722A/U2723A User’s Guide
Introduction
The Agilent U2722A/U2723A USB Modular Source Measure Units (SMU)
can operate as a standalone or modular unit when used in a chassis. The
U2722A/U2723A has three outputs.
The voltage range is –20 V to 20 V, whereas the maximum current output
per channel is 120 mA. The U2722A/U2723A is controlled remotely over a
USB interface via the Agilent Measurement Manager software. The
U2722A/U2723A can also be programmed using the provided drivers or
via SCPI commands.
The U2722A/U2723A has the following features.
•voltage source or current source operation
•measurement capability for low current down to nA levels
•high resolution current setting for the low current range at 100 pA
The U2722A/U2723A has the following capabilities.
•voltage and current programming/readback
•programming syntax error detection
•user calibration and self-test capability
U2723A USB Modular Source Measure Unit
The U2723A USB Modular Source Measure Unit has the following features
and capabilities in additional to the U2722A USB Modular Source Measure
Unit:
•embedded test script (able to support three channels with coherent
source and measurement capabilities)
•IV Curve application support in the Agilent Measurement Manager
software
•Increased (faster) rise/fall time

Getting Started 1
U2722A/U2723A User’s Guide 3
WARNING
Floating the U2722A/U2723A output more than ±60 VDC from the
chassis presents an electric shock hazard to the operator. Do not
float the outputs more than ±60 VDC when uninsulated sense wires
are used to connect the OUTPUT+ to the SENSE+ and the OUTPUT–
to the SENSE– terminals of the unit.