
Keysight B2900A Series
Precision Source/Measure Unit
Conguration Guide
Cost-effective source/measurement
solutions offer superior performance and
a best-in-class graphical user interface.

02 | Keysight | B2900A Series Precision Source/Measure Unit - Conguration Guide
Single, dual, graph,
roll
Contains electronic user manuals files, drivers and software
Keysight I/O Libraries CD
Contains driver and installation software for the Keysight I/O library
Printed reference for quick startup (English)
Certificate of Calibration
(without test data)
Certificate of calibration (without actual test data). If you need the test
data, please specify option UK6.
Congure Your Keysight B2900A Series Precision Source/Measure Unit
The Keysight B2900A Series Source/Measure Unit (SMU) series contains the following four models.
– B2901A Precision Source/Measure Unit, 1ch, 100fA resolution, 210V, 3A DC/10.5A pulse
– B2902A Precision Source/Measure Unit, 2ch, 100fA resolution, 210V, 3A DC/10.5A pulse
– B2911A Precision Source/Measure Unit, 1ch, 10fA resolution, 210V, 3A DC/10.5A pulse
– B2912A Precision Source/Measure Unit, 2ch, 10fA resolution, 210V, 3A DC/10.5A pulse
This conguration guide has step-by-step instructions to help you congure an SMU and its related accessories to meet specic test
requirements. For detailed specications, refer to the B2900A SMU series data sheet (publication number 5990-7009EN).
Step 1. Select B2900A Series model
There are two key parameters you need to select up-front: the number of measurement channels (one or two) and the SMU performance level. The B2900A series comes in both standard (B2901A/B2902A) and high-performance (B2911A/B2912A) versions. Note:
After purchase it is not possible to upgrade an SMU to have more channels or to the high-performance version (if you currently have
the standard version).
Product
Number
A
A
11A
A
The following items are supplied standard with each B2900A series SMU:
Number of
channels
Max output
DC Pulse
A
A
A
A
A
A
A
A
Min
source
resolution
pA
V
pA
V
fA
nV
fA
nV
Description Qty. Additional Information
Min
measure
resolution
fA
nV
fA
nV
fA
nV
fA
nV
Min
timing
interval
s
s
s
s
Viewing mode
USB cable (1.8 m). Orderable parts number is 8121-1696.

03 | Keysight | B2900A Series Precision Source/Measure Unit - Conguration Guide
Paper Manual (Use
English
B2901A-ABJ
B2902A-ABJ
B29
B2912A-ABJ
Paper Manual (Use
Chinese
Paper Manual (Use
Chinese
B2901A-AB2
B2902A-AB2
B29
B2912A-AB2
B2901A-1CM
B2902A-1CM
B29
B2912A-1CM
Rack mount kit for the B2900
2U height EI
Paper Manual (Use
English
Step 2. Add optional localized User’s Guide
The B2900A manuals (User’s Guide, etc.) are included in PDF format on the CD-ROM shipped with the B2900A. If you need printed
manuals then they can be ordered using the part numbers shown below.
Description Product Number Additional Information
r’s Guide),
Paper Manual (User’s Guide), Japanese
r’s Guide), Traditional
r’s Guide), Simplified
Download the Product Manual from the
Keysight website
11A-ABA
11A-ABJ
B2901A-AB0
B2902A-AB0
B2911A-AB0
B2912A-AB0
11A-AB2
B2901A-0B0
B2902A-0B0
B2911A-0B0
B2912A-0B0
A
A
A
Printed copy
No printed copy
The EasyEXPERT group+ software manuals (User’s Guide) are also included in PDF format on the CD-ROM shipped with the B2900A.
If you need printed manuals then they can be ordered using the part numbers shown below.
Description Product Number Additional Information
r’s Guide),
Paper Manual (User’s Guide),
Japanese
Step 3. Select optional accessories
Step 3-1. Choose a rack mount kit (optional)
Description Product Number Additional Information
B1540-90007
B1540-90021
B1540-97007
B1540-97021
11A-1CM
Printed copy, Volume 1 for EasyEXPERT group+
Printed copy, Volume 2 for EasyEXPERT group+
Printed copy, Volume 1 for EasyEXPERT group+
Printed copy, Volume 2 for EasyEXPERT group+
A series.
A and 1/2 rack width.

04 | Keysight | B2900A Series Precision Source/Measure Unit - Conguration Guide
Step 3. Select optional accessories (continued)
Step 3-2. Determine if you need to make 4-wire or guarded measurements
The B2900A SMUs support both 2-wire and 4-wire measurement. The default connection scheme is the simpler 2-wire conguration,
which uses only the force terminals. In 2-wire mode the sense terminals are left open.
If you are measuring very small resistances or applying very large currents then you should use the 4-wire measurement method (also
known as the Kelvin method). This technique uses both the force and sense terminals, and by making the measurement through the
sense terminals (in which no current is owing) the effects of cable resistance are eliminated.
High Force
High Force
High Sense
DUT
DUT
Low Sense
Low Force
Low Force
2-wire connections 4-wire connections
Low current measurements (< 1nA) require guarding to prevent leakage through the measurement cable. The schematic shown below
provides a simplied overview of the guarding technique. Guarded measurements require the use of triaxial cables. A follower (x1)
buffer amplier keeps the guard conductor at the same potential as the center conductor. Since there is no voltage difference, no
current can ow from the center conductor to the guard. Note: In this example, even the test xture has a guarded shield to prevent
leakage at the test xture.
Shield
DUT
A
x1
Force
Guard
Common
Guarding Technique
Guard Shield