Keysight Technologies B2900A Series User manual

Keysight Technologies
Making Time Domain Measurement with
Continuous Source Using SMU
B2900A Precision Source/Measure Unit
Demo Guide

02 | Keysight | Making Time Domain Measurement with Continuous Source Using SMU – Demo Guide
Introduction
The Keysight B2900A Series Precision Source/Measure Unit (SMU) is a compact and
cost-effective bench-top SMU with the capability to output and measure both voltage
and current. The B2900A Series SMU enables you to make a wide range of current
versus voltage (IV) measurements more accurately and quickly than ever before. In
addition, the B2900A Series SMU comes with an intuitive graphical user interface (GUI)
and free PC-based application software that make it easy for you to begin making
productive measurements immediately.
This demonstration guide shows how easily you can make a time domain measurement
with sourcing continuous current or voltage using the B2900A Series SMU.
Concept
Figure 1 illustrates the connection diagram used in the demo to make a time domain
measurement of voltage with sourcing current to an LED using the B2900A Series SMU.
Figure 1. Connection diagram
Required Instrument and Accessories
All of the accessories required to perform the demos described in this demonstration guide
are provided in a demo kit that is included with Keysight B2902A/12A demo units. The kit
includes items such as a Kelvin Probe Set, an LED.
Keysight B2902A/12A
Precision Source/Measure Unit
11059A Kelvin Probe Set
LED
A-
-
V
High Force
Low Force
B2901/02/11/12A
DUT
DUT : LED
Source Current : 10 mA
Voltage Limit : 2 V
Common

03 | Keysight | Making Time Domain Measurement with Continuous Source Using SMU – Demo Guide
Figure 2. Timing chart for the time domain measurement with continuous source
Figure 2 shows the timing chart for the time domain measurement with continuous source with
the front panel operation. In this case, the specied source value is sourced immediately after
turning on the channel by pressing . Then, when you press , the instrument will
make a time domain measurement. Sweep parameters will be used in the example in order to
source the continuous current. Besides, if it is necessary, you can specify any measurement
trigger delay time which is the wait time after each internal trigger and before making a
measurement. The measurement time consists of Measurement Speed and some overhead
time. Measurement Speed is the parameter specied by the user. Overhead time includes the
time to change the measurement range, etc.
Setup
1. Connect the yellow banana plug to the Ch 1 Low Force Terminal.
2. Connect the red banana plug to the Ch1 High Force Terminal.
3. Clip the LED cathode terminal with the black gold-plated tweezers.
4. Clip the LED anode terminal with the red gold-plated tweezers.
4
1
2
Cathode
Anode
3
Red (11059A)
Yellow (11059A) Black (11059A)
Red (11059A)
Trigger
Output ON
Source
Value
Output
Off State
: Measurement
V or I
Time
TSD
TMD
TP
Start/Stop
Value
TMD
TMTM
TMD
TMD
TM
TM
TMD
TM
TMD
TM
TPTPTPTP
TP
TM
: Trigger Period
: Measurement Time
TSD
TMD
: Source Trigger Delay Time
: Measurement Trigger
Delay Time
Internal Trigger

04 | Keysight | Making Time Domain Measurement with Continuous Source Using SMU – Demo Guide
LAB: Make Time Domain Measurement with Continuous Source Using SMU
Objective
This demo illustrates the function
to make a time domain
measurement of voltage with
sourcing current to an LED using a
Source/Measure Unit.
Procedure
1. Change View mode to Channel 1
Single View
2. Congure the condition for Time
Domain Measurement
3. Change View mode to Graph View
4. Perform the measurement
5. View the measurement result graph
6. View the list of measurement results
7. (Optional) Congure the
measurement speed
8. (Optional) Congure to use AUTO
measurement range operation
Demonstration
1. Change View mode to Channel 1 Single View
1) Press repeatedly until the Channel 1
Single View is displayed.
2. Congure the condition for Time Domain Measurement
1) Press to edit the Source function, and then select to set the Source
function to Current source.
2) Press to edit the Source value, and then enter 10 nA to set the Source value to
10 nA.
3) Press to edit the Limit value, and then enter 2 V to set the Limit value to 2 V.
4) Press to congure the Measurement parameter, and then select to set the
Measurement parameter to Voltage.

05 | Keysight | Making Time Domain Measurement with Continuous Source Using SMU – Demo Guide
5) Press to change the keys shown in Assist keys, and then press to show
Sweep Sub-Panel.
6) Press , then press to turn on Single Linear Sweep Mode. After turning
on Single Linear Sweep Mode, you can see Source Shape which shows the single
linear sweep mode.
7) Rotate to select Channel 1 Sweep Parameters and set them up as below.
Start and Stop values should be the same, which dene the continuous source value.
(Start: 10 mA, Stop: 10 mA, Points: 1, Step: 0 A)
8) Press to show Trigger Sub-Panel.
8) Press to edit the Trigger type, and then select to set the Trigger type
to TIMER.

06 | Keysight | Making Time Domain Measurement with Continuous Source Using SMU – Demo Guide
10) Rotate to select Channel 1 Trigger Parameters and set them up as below.
Measurement Trigger Count denes the number of sampling and Measurement Trigger
Period denes the interval of sampling.
(Source Trigger Count: 1, Measurement Trigger Count: 101, Source Trigger Delay: 20 ms,
Measurement Trigger Delay Time: 500 us, Measurement Trigger Period: 1 ms)
Now you’ve congured a 1 ms measurement trigger period for a time domain measure-
ment. The measurement will be performed every 1 ms periodically. However, please
note that a FIXED voltage measurement range operation will be used to control the
trigger period, in other words the measurement interval, strictly. The measurement
range is selected by Limit value. In this example, a 2 V measurement range will be
used. If using AUTO measurement range operation is prior to controlling the trigger
period strictly, you may specify MANUAL trigger type with AUTO source and measure-
ment trigger source by the steps shown later.
3. Change View mode to Graph View
1) Press repeatedly until Graph View
is displayed.
2) Rotate and press to edit the Y-axis data type, and then select to set the Y-axis
data type to Voltage.
3) Rotate and press to edit the X-axis data type.

07 | Keysight | Making Time Domain Measurement with Continuous Source Using SMU – Demo Guide
4) Press , and then select to set the X-axis data type to Time.
4. Perform the measurement
1) Press to source the current specied by the Source value, and then press
to perform a measurement.
(The status information will show during the measurement.)
5. View the measurement result graph
1) Press to adjust the scale of the graph after nishing the measurement.
2) Rotate and press to edit the Y-axis scaling, and then enter 2 V to adjust the
graph scale.
Now you can see the measurement result on the GUI of the B2900A series SMU as
below.

08 | Keysight | Making Time Domain Measurement with Continuous Source Using SMU – Demo Guide
6. View the list of measurement results
The measurement results including the measurement time stamp can be referred by the
following steps.
1) If you aren’t on the top of the Function menu, press repeatedly to return to
the top level.
2) If you’d like to see the list of the measurement result, press , then press
to open Measure Result dialogue.
3) Rotate and press to select the Data Type eld.
4) Press to change the keys shown in Assist keys, and then press to
select Time as the Data type.
5) Rotate and press to select the Data eld. Then rotate to scroll the data
list.
On the top level of the Function menu
In the middle level of the Function menu
Any tree structure can’t be seen
Some tree structure can be seen
(1) Press Result
(2) Press Measure

09 | Keysight | Making Time Domain Measurement with Continuous Source Using SMU – Demo Guide
7. (Optional) Congure the measurement speed
In the default setting, the instrument selects the appropriate measurement speed and
range automatically to get the ne accuracy. However, you can also specify these pa-
rameters on the GUI of the B2900A series SMU to meet a variety of the requirement to
the measurement conditions.
For example, let’s try to change the measurement speed to SHORT to make a measure-
ment more quickly. If you select SHORT, the aperture time is set to 0.01 PLC. Here, PLC
stands for power line cycle and the specied number of power line cycles is used per a
measurement.
1) Press repeatedly until the Channel 1
Single View is displayed.
2) Press to edit the Measurement speed, and then select to set the
Measurement speed to SHORT. (If you can’t see in Assist keys, press
to change the keys shown in Assist keys.)
8. (Optional) Congure to use AUTO measurement range operation
If you’d like to use AUTO measurement range operation during the time domain measure-
ment, take the following steps.
1) Press repeatedly until the Channel 1
Single View is displayed.
2) Rotate and press to edit the Trigger type, and then select to set the
Trigger type to MANUAL.

10 | Keysight | Making Time Domain Measurement with Continuous Source Using SMU – Demo Guide
B2900 Precision Instrument Family
The B2900 family contains products that perform both precision sourcing and precision
measurement. www.keysight.com/nd/b2900a
3) Rotate to select Channel 1 Trigger Parameters and set them up as below.
(Source Trigger Source: AUTO, Measurement Trigger Source: AUTO)
4) Press to show Range Sub-Panel. (If you can’t see in Assist keys,
press to change the keys shown in Assist keys.)
5) Rotate and press to edit the Voltage minimum measurement range, and
then select to set it to 2Vfor example.
Conclusion
The Keysight B2900A Series Precision Source/Measure Unit (SMU) is a compact and cost-
effective bench-top SMU with the capability to output and measure both voltage and current.
Conguring the B2900A series SMU properly enables you not only to make a simple current
versus voltage (IV) measurement, but also to make a time domain measurement with sourcing
continuous current or voltage as if it were an oscilloscope.

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© Keysight Technologies, 2016
Published in USA, September 13, 2016
5992-1772EN
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11 | Keysight | Making Time Domain Measurement with Continuous Source Using SMU – Demo Guide
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