National Instruments NI 5731 Series User manual

NI 5731/5732/5733/5734R User Guide
and Specifications
The NI 5731/5732/5733/5734 is a family of high-speed digitizer adapter modules designed to work in
conjunction with your NI FlexRIOFPGA module. This document contains signal information and
specifications for the NI 5731/5732/5733/5734R, which is composed of an NI FlexRIO FPGA module
and the NI 5731/5732/5733/5734. This document also contains tutorial sections that demonstrate how
to acquire data using a LabVIEW FPGA example VI and how to create and run your own LabVIEW
project with the NI 5731/5732/5733/5734R.
Note NI 5731/5732/5733/5734R refers to the combination of your NI 5731/5732/5733/5734
adapter module and your NI FlexRIO FPGA module. NI 5731/5732/5733/5734 refers to your
NI 5731/5732/5733/5734 adapter module only.
A description of each of the NI 5731/5732/5733/5734 devices is given below:
•NI 5731—2 analog input, 12-bit, 40 MS/s digitizer
•NI 5732—2 analog input, 14-bit, 80 MS/s digitizer
•NI 5733—2 analog input, 16-bit, 120 MS/s digitizer
•NI 5734—4 analog input, 16-bit, 120 MS/s digitizer
Contents
Electromagnetic Compatibility Guidelines.......................................................................................... 2
How to Use Your NI FlexRIO Documentation Set ............................................................................. 3
Front Panel and Connector Pinouts ..................................................................................................... 4
Block Diagram..................................................................................................................................... 6
NI 5731/5732/5733/5734 Component-Level Intellectual Property (CLIP)......................................... 7
Cables................................................................................................................................................... 8
Clocking............................................................................................................................................... 9
Using Your Device with a LabVIEW FPGA Example VI .................................................................. 10
Creating a LabVIEW Project and Running a VI on an FPGA Target................................................. 12
Specifications....................................................................................................................................... 15
Where to Go for Support ..................................................................................................................... 41
Appendix: Installing EMI Controls ..................................................................................................... 42

NI 5731/5732/5733/5734R User Guide and Specifications 2 ni.com
Note Before configuring your NI 5731/5732/5733/5734R, you must install the appropriate software
and hardware. Refer to the NI FlexRIO FPGA Module Installation Guide and Specifications for
installation instructions. Figure 1 shows an example of a properly connected NI FlexRIO device.
Figure 1. NI FlexRIO Device
Electromagnetic Compatibility Guidelines
This product was tested and complies with the regulatory requirements and limits for electromagnetic
compatibility (EMC) as stated in the product specifications. These requirements and limits are designed
to provide reasonable protection against harmful interference when the product is operated in its
intended operational electromagnetic environment.
This product is intended for use in industrial locations. There is no guarantee that harmful interference
will not occur in a particular installation, when the product is connected to a test object, or if the product
is used in residential areas. To minimize the potential for the product to cause interference to radio and
television reception or to experience unacceptable performance degradation, install and use this product
in strict accordance with instructions in the product documentation.
Furthermore, any changes or modifications to the product not expressly approved by National
Instruments could void your authority to operate it under your local regulatory rules.
Caution To ensure the specified EMC performance, you must install PXI EMC Filler Panels
(National Instruments part number 778700-01) in adjacent chassis slots. For more information about
installing PXI EMC filler panels in your system, refer to the Appendix: Installing EMI Controls
section of this document.
Caution To ensure the specified EMC performance, operate this product only with shielded cables
and accessories.
Caution To ensure the specified EMC performance, install the included snap-on ferrite bead
(National Instruments part number 711856-01) on any cable attached to the AUX I/O connector in
accordance with the instructions listed in the Appendix: Installing EMI Controls section.
Caution This product is sensitive to electrostatic discharge (ESD). To ensure the specified EMC
performance, follow the programming instructions listed at the end of the Using Your Device with a
LabVIEW FPGA Example VI and Creating a LabVIEW Project and Running a VI on an FPGA
Target sections of this document.
NI FlexRIO
Adapter Module + = NI FlexRIO Device
NI FlexRIO
FPGA Module

©National Instruments Corporation 3 NI 5731/5732/5733/5734R User Guide and Specifications
How to Use Your NI FlexRIO Documentation Set
Refer to Figure 2 and Table 1 for information about how to use your NI FlexRIO documentation set.
Figure 2. How to Use Your NI FlexRIO Documentation Set
Table 1. NI FlexRIO Documentation Locations and Descriptions
Document Location Description
NI FlexRIO FPGA
Module Installation
Guide and Specifications*
Available in your FPGA module
hardware kit and from the Start Menu.
Contains installation instructions for your
NI FlexRIO system and specifications for your
FPGA module.
NI xxxxR User Guide and
Specifications*
Available from the Start Menu. Contains signal information, examples, and
specifications for your adapter module.
LabVIEW FPGA Module
Help*
Embedded in LabVIEW Help.Contains information about the basic functionality of
LabVIEW FPGA Module.
NI FlexRIO Help*Embedded in LabVIEW FPGA
Module Help.
Contains FPGA module, adapter module, and CLIP
configuration information.
LabVIEW Examples Available in NI Example Finder. Contains examples of how to run FPGA VIs and
Host VIs on your device.
Other Useful Information on ni.com
ni.com/ipnet Contains LabVIEW FPGA functions and intellectual property to share.
ni.com/flexrio Contains product information and data sheets for NI FlexRIO devices.
* These documents are also available at ni.com/manuals.
LabVIEW FPGA
Module Help
NI FlexRIO
Help
LabVIEW
Examples
INSTALL Hardware
and Software
CONNECT Signals
and Learn About
Your Adapter
Module
LEARN About
LabVIEW FPGA
Module
PROGRAM Your
NI FlexRIO System
in LabVIEW FPGA
Module
NI FlexRIO FPGA Module
Installation Guide and Specifications
NI FlexRIO Adapter Module
User Guide and Specifications
Are
You New to
LabVIEW FPGA
Module?
Ye s N o
No

NI 5731/5732/5733/5734R User Guide and Specifications 4 ni.com
Front Panel and Connector Pinouts
Front Panel
Table 2 shows the front panel connector and signal descriptions for the NI 5731/5732/5733/5734. Refer
to the Specifications section of this document for additional signal information.
Table 2. NI 5731/5732/5733/5734 Front Panel Connectors
Connector Signal Description
AI 0 50 single-ended analog input channel 0.
AI 1 50 single-ended analog input channel 1.
AI 2 50 single-ended analog input channel 2 (NI 5734 only).
AI 3 50 single-ended analog input channel 3 (NI 5734 only).
CLK IN Reference or external clock input, 50 single-ended.
AUX I/O Refer to Table 3 for the signal list and descriptions.
AUX
I/O
AI 0
CLK IN
AI 1
NI 5732
INSTRUMENTS
NATIONAL
80 MS/s
Digitizer
AUX
I/O
AI 0
CLK IN
AI 1
NI 5731
INSTRUMENTS
NATIONAL
40 MS/s
Digitizer
AUX
I/O
AI 0
CLK IN
AI 1
NI 5733
INSTRUMENTS
NATIONAL
120 MS/s
Digitizer
AUX
I/O
AI 0
CLK IN
AI 1
AI 3
AI 2
NI 5734
INSTRUMENTS
NATIONAL
120 MS/s
Digitizer

©National Instruments Corporation 5 NI 5731/5732/5733/5734R User Guide and Specifications
Caution Connections that exceed any of the maximum ratings of any connector on the
NI 5731/5732/5733/5734 can damage the device and the chassis. NI is not liable for any damage
resulting from such signal connections. For the maximum input and output ratings for each signal,
refer to the Specifications section of this document.
AUX I/O Connector
Table 3 shows the pin assignments for the AUX I/O connector on the NI 5731/5732/5733/5734.
Caution The AUX I/O connector accepts a standard, third-party HDMI cable, but the AUX I/O port
is not an HDMI interface. Do not connect the AUX I/O port on the NI 5731/5732/5733/5734 into the
HDMI port of another device. NI is not liable for any damage resulting from such signal connections.
Table 3. NI 5731/5732/5733/5734 AUX I/O Connector Pin Assignments
AUX I/O Connector Pin Signal Signal Description
1 DIO Port 0 (0) Bidirectional single-ended digital I/O data channel.
2 GND Ground reference for signals.
3 DIO Port 0 (1) Bidirectional single-ended digital I/O data channel.
4 DIO Port 0 (2) Bidirectional single-ended digital I/O data channel.
5 GND Ground reference for signals.
6 DIO Port 0 (3) Bidirectional single-ended digital I/O data channel.
7 DIO Port 1 (0) Bidirectional single-ended digital I/O data channel.
8 GND Ground reference for signals.
9 DIO Port 1 (1) Bidirectional single-ended digital I/O data channel.
10 DIO Port 1 (2) Bidirectional single-ended digital I/O data channel.
11 GND Ground reference for signals.
12 DIO Port 1 (3) Bidirectional single-ended digital I/O data channel.
13 PFI 0 Bidirectional single-ended digital I/O data channel.
14 NC No connect.
15 PFI 1 Bidirectional single-ended digital I/O data channel.
16 PFI 2 Bidirectional single-ended digital I/O data channel.
17 GND Ground reference for signals.
18 +5V +5 V power (10 mA maximum).
19 PFI 3 Bidirectional single-ended digital I/O data channel.
2
4
6
8
10
12
14
16
18
1
3
19
17
15
13
11
9
7
5

NI 5731/5732/5733/5734R User Guide and Specifications 6 ni.com
Block Diagram
Figure 3 shows the NI 5731/5732/5733/5734 block diagram and signal flow to and from the
NI 5731/5732/5733/5734 component-level intellectual property (CLIP) by way of the adapter module
and the corresponding CLIP in LabVIEW FPGA.
Figure 3. NI 5731/5732/5733/5734 Connector Signals and CLIP Signal Block Diagram
NI 5731/5732/5733/5734 Adapter Module
AI 0
AI 2
DIO Port 0 (0)
DIO Port 0 (1)
DIO Port 0 (2)
DIO Port 0 (3)
DIO Port 1 (0)
DIO Port 1 (1)
DIO Port 1 (2)
DIO Port 1 (3)
PFI 0
PFI 1
PFI 2
PFI 3
AUX I/O
ADC
ADC Clock
ADC Data
Sample Clock
ADC
LabVIEW FPGA CLIP
ADC Clock
ADC Data
ADC
Interface
ADC
Interface
AI 0
AI 2
AI 0 Over Range
AI 2 Over Range
16
DC Over Voltage
4
SPI Device Select
SPI Read
SPI Write
SPI Write Data
SPI Address
SPI Idle
32
32
DIO Port 0 WE
DIO Port 0 Rd Data (0)
DIO Port 0 Wr Data (0)
DIO Port 0 Rd Data (1)
DIO Port 0 Wr Data (1)
DIO Port 0 Rd Data (2)
DIO Port 0 Wr Data (2)
DIO Port 0 Rd Data (3)
DIO Port 0 Wr Data (3)
DIO Port 1 Rd Data (0)
DIO Port 1 Wr Data (0)
DIO Port 1 Rd Data (1)
DIO Port 1 Wr Data (1)
DIO Port 1 Rd Data (2)
DIO Port 1 Wr Data (2)
DIO Port 1 Rd Data (3)
DIO Port 1 Wr Data (3)
DIO Port 1 WE
PFI 3 Wr Data
PFI <0..3> WE
PFI 3 Rd Data
PFI 1 Rd Data
PFI 1 Wr Data
PFI 2 Rd Data
PFI 2 Wr Data
PFI 0 Rd Data
PFI 0 Wr Data
4
User Data 1
User Command
User Command Commit
User Command Status
User Return
Initialization Done
User Error
User Command Idle
User Data 0
AI 1
AI 3
SPI Read Data
PLL Locked
Sync Clock
CLK IN
SPI Engine
Calibration
EEPROM
DAC SPI
ADC SPI
ADC SPI
ADT7408
Temperature
Sensor
DAC
OUT1 OUT2
CP
OUT4
CLK1
REF IN
AD9511
CLK2
SPI
VCXO
AC/DC
Gain
1, 2, 4x
Filters
AC/DC
Gain
1, 2, 4x
Filters
PLL Loop
Filter
Enable VCXO
Enable PLL
External Sample CLK
External Ref CLK
Channel Controls
Microcontroller
AI 1
AI 3
AI 1 Over Range
AI 3 Over Range
16
16
16

©National Instruments Corporation 7 NI 5731/5732/5733/5734R User Guide and Specifications
NI 5731/5732/5733/5734 Component-Level Intellectual Property (CLIP)
The LabVIEW FPGA Module includes a feature for HDL IP integration called CLIP. NI FlexRIO
devices support two types of CLIP: user-defined and socketed.
•User-defined CLIP allows users to insert HDL IP into an FPGA target, enabling VHDL code to
communicate directly with an FPGA VI.
•Socketed CLIP provides the same IP integration functionality of the user-defined CLIP, but also
allows the CLIP to communicate directly with circuitry external to the FPGA. Adapter module
socketed CLIP allows your IP to communicate directly with both the FPGA VI and the external
adapter module connector interface.
Figure 4 shows the relationship between an FPGA VI and CLIP.
Figure 4. CLIP and FPGA VI Relationship
Adapter Module
CLIP Socket
LabVIEW
FPGA VI
User-Defined
CLIP
NI FlexRIO FPGA Module
FPGA
External
I/O Connector
Adapter
Module
Socketed
CLIP
User-Defined
CLIP Fixed I/O
DRAM 0
CLIP Socket
Socketed
CLIP
DRAM 1
CLIP Socket
Socketed
CLIP
Fixed I/O
Fixed I/O
DRAM0 DRAM1

NI 5731/5732/5733/5734R User Guide and Specifications 8 ni.com
The NI 5731/5732/5733/5734 ships with socketed CLIP items that are used to add module I/O to the
LabVIEW project.
The NI 5731/5732/5733/5734 CLIP items provides access to two analog input channels (four analog
input channels on the NI 5734), eight bidirectional DIO channels, four bidirectional PFI channels, and
an input clock selector that can be configured to use one of the following settings:
• Internal Sample clock
• Internal Sample clock locked to an external Reference clock through the CLK IN connector
• External Sample clock through the CLK IN connector
• Internal Sample clock locked to an external Reference clock through Sync Clock
The CLIP items also contain an engine to program the ADC and clock, either through predetermined
settings for an easier instrument setup or through a raw SPI address and data signals for a more advanced
setup. In the LabVIEW FPGA Module, analog input data is accessed using a U16 data type (left
justified). The DIO signals are grouped into two ports of four signals each and are accessed using a U8
data type and Boolean write enable signal. The four PFI signals are accessed individually using
Booleans.
Refer to the NI FlexRIO Help for more information about NI FlexRIO CLIP items, configuring the
NI 5731/5732/5733/5734 with a socketed CLIP, and a list of available socketed CLIP signals.
Cables
• Use any shielded 50 coaxial cable of less than 3 meters in length with a BNC plug end to connect
to the AI 0, AI 1, AI 2, and AI 3 connectors on the NI 5731/5732/5733/5734 front panel.
• Use any shielded 50 coaxial cable of less than 3 meters in length with an SMB plug end to
connect to the CLK IN connector.
• Use any HDMI cable with the provided ferrite bead to connect to the digital I/O and PFI signals on
the AUX I/O connector.
Caution To ensure the specified EMC performance, install the included snap-on ferrite bead
(National Instruments part number 711856-01) on any cable attached to the AUX I/O connector in
accordance with the instructions listed in the Appendix: Installing EMI Controls section.

©National Instruments Corporation 9 NI 5731/5732/5733/5734R User Guide and Specifications
Clocking
The NI 5731/5732/5733/5734 clocks control the sample rate and other timing functions on the device.
Table 4 contains information about the possible NI 5731/5732/5733/5734 clock resources.
Note Specifications for the NI 5731/5732/5733/5734 adapter modules were characterized only at
the maximum sample rates.
Note For more information about configuring clocks, refer to the respective CLIP Help section for
your device in the NI FlexRIO Help.
Table 4. NI 5731/5732/5733/5734 Clock Sources
Clock
Configuration
Supported Sample
Rates
External
Clock
Type
External Clock
Frequency Description
Internal Clock
PLL Off
NI 5731 = 40 MS/s
NI 5732 = 80 MS/s
NI 5733 = 120 MS/s
NI 5734 = 120 MS/s
— — The internal VCXO
acts as a free-running
clock.
Internal Clock
PLL On
(IoModSyncClk)
NI 5731 = 40 MS/s
NI 5732 = 80 MS/s
NI 5733 = 120 MS/s
NI 5734 = 120 MS/s
—10 MHz The internal VCXO
locks to
IoModSyncClk (Sync
Clock), which is
provided only through
the backplane of
supported devices.
Internal Clock
PLL On
(CLK IN)
NI 5731 = 40 MS/s
NI 5732 = 80 MS/s
NI 5733 = 120 MS/s
NI 5734 = 120 MS/s
Reference
clock
10 MHz The internal VCXO
locks to an external
Reference clock,
which is provided
through the CLK IN
front panel connector.
External Clock
(CLK IN)
The supported
sample rate is equal
to the external clock
frequency.
Sample
clock
NI 5731 Min = 3 MHz
NI 5731 Max = 40 MHz
NI 5732 Min = 20 MHz*
NI 5732 Min = 10 MHz†
NI 5732 Max = 80 MHz
NI 5733 Min = 50 MHz
NI 5733 Max = 120 MHz
NI 5734 Min = 50 MHz
NI 5734 Max = 120 MHz
An external Sample
clock can be provided
through the CLK IN
front panel connector.
* Duty Cycle Stabilizer (DCS) enabled. DCS enabled is the default setting for all NI 5731/5732/5733/5734 CLIP items. You
can disable the DCS by adjusting register 9 in the ADC.
† DCS disabled.

NI 5731/5732/5733/5734R User Guide and Specifications 10 ni.com
Using Your Device with a LabVIEW FPGA Example VI
Note You must install the NI FlexRIO Adapter Module Support software before running this
example. Refer to the NI FlexRIO FPGA Module Installation Guide and Specifications for more
information about installing your software.
The NI FlexRIO Adapter Module Support software includes a variety of example projects to help get
you started creating your LabVIEW FPGA application. This section explains how to use an existing
LabVIEW FPGA example project to generate and acquire samples with the NI 5731/5732/5733/5734R.
This example requires at least one BNC cable for connecting signals to your device.
Note The examples available for your device are dependent on the version of the software and driver
you are using. For more information about which software versions are compatible with your device,
visit ni.com/info and enter rdsoftwareversion as the Info Code.
Each NI 5731/5732/5733/5734R example project includes the following components:
• A LabVIEW FPGA VI that can be compiled and run on the FPGA embedded in the hardware
• A VI that runs on Windows that interacts with the LabVIEW FPGA VI
Note In the LabVIEW FPGA Module software, NI FlexRIO adapter modules are referred to as
IO Modules.
Complete the following steps to run an example that acquires a waveform on AI 0 of the
NI 5731/5732/5733/5734.
1. Connect one end of an BNC cable to AI 0 on the front panel of the NI 5731/5732/5733/5734 and
the other end of the cable to your device under test (DUT).
2. Launch LabVIEW.
3. In the Getting Started window, click Find Examples to display the NI Example Finder.
4. In the NI Example Finder window, select Hardware Input and Output»FlexRIO»IO Modules»
NI 573X»NI 573y (where y represents the device number you are using).
5. Select NI 573y- Getting Started.lvproj. Wait for the project to finish opening.
6. In the Project Explorer window, open NI 573y- Getting Started (Host).vi under My Computer.
The host VI opens. The Open FPGA VI Reference function in this VI uses the NI 7952R as the
FPGA target by default. If you are using an NI FlexRIO FPGA module other than the NI 7952R,
complete the following steps to change to the FPGA VI to support your target.
a. Select Window»Show Block Diagram to open the VI block diagram.
b. On the block diagram, right-click the Open FPGA VI Reference (PXI-7952R) function and
select Configure Open FPGA VI Reference.
c. In the Configure Open FPGA VI Reference dialog box, click the Browse button next to the
Bitfile button.
d. In the Select Bitfile dialog box that opens, select the bitfile for your desired target. The bitfile
name is based on the adapter module, example type, and FPGA module.
e. Click the Select button.
f. Click OK in the Configure Open FPGA VI Reference dialog box.
g. Save the VI.
7. On the front panel, in the RIO Resource pull-down menu, select a resource that corresponds with
the target configured in step 6.
8. Select AI 0 in the AI Channel control.

©National Instruments Corporation 11 NI 5731/5732/5733/5734R User Guide and Specifications
9. Set the Trigger Level (V) and the Record Size controls to the desired value.
10. In the Trigger Type control, you can select either Software Trigger or Data Edge. If you select
Software Trigger, the VI acquires data every time you click the Software Trigger button on the
front panel of the VI. If you select Data Edge, the VI acquires data every time an edge occurs.
11. Set the Sample Rate control to the default sample rate of your device.
Note The Sample Rate control does not change the sample rate of your device; it only adjusts the
time display.
12. Click the Run button to run the VI.
13. Click the Software Trigger button if you selected Software Trigger in the Trigger Type control.
The VI acquires data and displays the captured waveform on the Acquired Waveform graph as
shown in Figure 5.
14. Click the STOP button to stop the VI. Close the VI.
Figure 5. NI 573x- Getting Started (Host) VI Front Panel
Note (NI 5731 Only) ESD events can affect the NI 5731 Sample clock, which can cause error
-50400 when performing DMA transfers or result in other clock performance and timeout errors
when acquiring data on the NI 5731. To ensure that the NI 5731 self-recovers from this error, the host
and FPGA VIs must be able to trap these timeout errors and reinitialize the FPGA. The following two
steps describe how to self-recover the NI 5731:
1. For more information about how to trap the error, visit the KnowledgeBase at ni.com/kb, enter
3BPD5HRY, and select the article, Ignoring a Particular Error in an Error Cluster in LabVIEW.
2. To reinitialize the FPGA, refer to the Reset (Invoke Method) topic in the NI FPGA Module Help
file, available in LabVIEW and at ni.com/manuals.

NI 5731/5732/5733/5734R User Guide and Specifications 12 ni.com
Creating a LabVIEW Project and Running a VI on an FPGA Target
This section explains how to set up your target and create an FPGA VI and host VI for data
communication. For more detailed information about acquiring data on your NI 5731/5732/5733/5734,
refer to the device specific examples available in NI Example Finder.
Creating a Project
1. Launch LabVIEW, or if LabVIEW is already running, select File»New.
2. In the New dialog box, select Project»Empty Project and click OK. The new project opens in the
Project Explorer window.
3. Save the project as 573xSampleAcq.lvproj.
Creating an FPGA Target VI
1. In the Project Explorer window, right-click My Computer and select New»Targets and
Devices.
2. In the Add Targets and Devices on My Computer dialog box, select the Existing Target or
Device button and expand FPGA Target. The target is displayed.
3. Select your device and click OK. The target and target properties are loaded into the Project
Explorer window.
4. In the Project Explorer window, expand FPGA Target (RIOx, PXI-79xxR).
5. Right-click FPGA Target (RIOx, PXI-79xxR) and select New»FPGA Base Clock.
6. In the Resource pull-down menu, select IO Module Clock 0.
7. Enter the default Sample clock rate for your device (40, 80, or 120) in the Compile for single
frequency control and click OK.
8. Right-click IO Module in the Project Explorer window and select Properties.
9. Select the NI 573xfrom the IO Module list. The available CLIP for the NI 5731/5732/5733/5734
is displayed in the General category of the Component Level IP pane. If the information in the
General category is dimmed, select the Enable IO Module checkbox.
10. Select NI 573x CLIP in the Name list box of the Component Level IP section.
11. In the Clock Selections category, leave Clk40 configured as the Top-Level C lock . This step is
necessary to compile the FPGA VI correctly.
12. Click OK.
Note Configuring this clock is required for proper CLIP operation. Refer to the
NI 5731/5732/5733/5734 CLIP topics in the NI FlexRIO Help for more information about
configuring your clocks.
13. In the Project Explorer window, right-click the FPGA target and select New»VI. A blank VI
opens.
14. Select Window»Show Block Diagram to open the VI block diagram.
15. In the Project Explorer window, expand the IO Module (NI 573x: NI 573x) tree view.
16. Drag AI 0 to the block diagram.
17. Add a Timed Loop structure around the single node.
18. Wire an indicator to the output terminal of the IO Module\AI 0 Data N node.
19. Wire an FPGA Clock Constant to the input node of the Timed Loop. Set this constant to
IO Module Clock 0.

©National Instruments Corporation 13 NI 5731/5732/5733/5734R User Guide and Specifications
Your block diagram should now resemble the block diagram in Figure 6.
Figure 6. 5731/5732/5733/5734SampleAcq (FPGA).vi Block Diagram
Tip Click the Clean Up Diagram button on the toolbar to cleanly organize the VI block diagrams.
20. Save the VI as 573xSampleAcq (FPGA).vi.
21. Click the Run button. LabVIEW creates a default build specification and begins compiling the VI.
The Generating Intermediate Files window opens and displays the code generation progress.
Next, the Compilation Status window opens and displays the progress of the compilation. The
compilation takes several minutes.
22. Click Close in the Compilation Status window.
23. Save and close the VI.
24. Save the project.
Creating a Host VI
1. In the Project Explorer window, right-click My Computer and select New»VI. A blank VI opens.
2. Select Window»Show Block Diagram to open the VI block diagram.
3. Place the Open FPGA VI Reference function, located on the FPGA Interface palette, on the block
diagram.
4. Right-click the Open FPGA VI Reference function and select Configure Open FPGA VI
Reference.
5. In the Configure Open FPGA VI Reference dialog box, select VI in the Open section.
6. In the Select VI dialog box that opens, select 573xSampleAcq (FPGA).vi under your device and
click OK.
7. Click OK in the Configure Open FPGA VI Reference dialog box. The target name appears under
the Open FPGA VI Reference function in the block diagram.
8. Add a While Loop to the block diagram. Place it to the right of the Open FPGA VI Reference
function.
9. Right-click the conditional terminal inside the While Loop and select Create Control to create a
STOP button on the VI front panel window.
10. Add the Read/Write Control function, located on the FPGA Interface palette, inside the
While Loop.
11. Wire the FPGA VI Reference Out output terminal of the Open FPGA VI Reference function to
the FPGA VI Reference In input terminal on the Read/Write Control function.
12. Wire the error out terminal of the Open FPGA VI Reference function to the error in control of
the Read/Write Control function.
13. Configure the Read/Write Control function by clicking the terminal section labeled Unselected, and
selecting IO Module/AI 0 Data N.

NI 5731/5732/5733/5734R User Guide and Specifications 14 ni.com
14. Wire an indicator to the output terminal of the IO Module\AI 0 Data N node.
15. Add the Close FPGA VI Reference function, located on the FPGA Interface palette, to the right
of the While Loop on the block diagram.
16. Wire the FPGA VI Reference Out terminal of the Read/Write Control function to the FPGA VI
Reference In terminal of the Close FPGA VI Reference function.
17. Wire the error out terminal of the Read/Write Control function to the error in terminal of the
Close FPGA VI Reference function.
Your block diagram should now resemble the block diagram in Figure 7.
Figure 7. 573xSampleAcq(Host).vi Block Diagram
18. Save the VI as 573xSampleAcq(Host).vi.
Running the Host VI
1. Connect one end of an BNC cable to AI 0 on the front panel of the NI 5731/5732/5733/5734 and
the other end of the cable to your DUT.
2. Open the front panel of 573xSampleAcq(Host).vi.
3. Click the Run button to run the VI.
4. The VI acquires data from the DUT on AI 0 Data N.
5. Click the STOP button on the front panel and close the VI.
Note (NI 5731 Only) ESD events can affect the NI 5731 Sample clock, which can cause error
-50400 when performing DMA transfers or result in other clock performance and timeout errors
when acquiring data on the NI 5731. To ensure that the NI 5731 self-recovers from this error, the host
and FPGA VIs must be able to trap these timeout errors and reinitialize the FPGA. The following two
steps describe how to self-recover the NI 5731:
1. For more information about how to trap the error, visit the KnowledgeBase at ni.com/kb, enter
3BPD5HRY, and select the article, Ignoring a Particular Error in an Error Cluster in LabVIEW.
2. To reinitialize the FPGA, refer to the Reset (Invoke Method) topic in the NI FPGA Module Help
file, available in LabVIEW and at ni.com/manuals.

©National Instruments Corporation 15 NI 5731/5732/5733/5734R User Guide and Specifications
Specifications
This section lists the specifications of the NI FlexRIO adapter module (NI 5731/5732/5733/5734). Pair
these specifications with the specifications listed in the NI FlexRIO FPGA Module Installation Guide
and Specifications. For more information about safety and electromagnetic compatibility refer to the
Read Me First: Safety and Electromagnetic Compatibility document included in your hardware kit or
available at ni.com/manuals.
Note All numeric specifications are typical unless otherwise noted. All graphs illustrate the
performance of a representative module.
Typical values describe useful product performance that are not covered by warranty. Typical values
cover the expected performance of units over ambient temperature ranges of 23 ±5 °C with an 85%
confidence level, based on measurements taken during development or production.
Note Specifications for the NI 5731/5732/5733/5734 adapter modules were characterized only at
the maximum sample rates.
Analog Input (AI 0, AI 1, AI 2, and AI 3)
General Characteristics
Number of channels ...............................................Two (four channels on the NI 5734)
Connector type.......................................................BNC
Input type ...............................................................Simultaneously sampled, singled-ended
Input impedance.....................................................50 , per connector
Input coupling (software selectable)......................AC or DC
Gain (software selectable)......................................0 dB, 6 dB, or 12 dB
Signal paths (software selectable)..........................Filter bypass, 7th-order Elliptic filter,
7th-order Bessel filter
Digital data resolution (16-bit, left-justified, unsigned, binary data)
NI 5731 ..........................................................12 bit
NI 5732 ..........................................................14 bit
NI 5733/5734 .................................................16 bit
ADC part number1
NI 5731 ..........................................................AD9231BCPZ-40
NI 5732 ..........................................................AD9258BCPZ-80
NI 5733/5734 .................................................AD9268BCPZ-125
Absolute maximum voltage ...................................±10 V DC, 10 Vpk-pk AC
DC overvoltage disconnect ....................................±2 V DC (exceeding this voltage forces AC-mode)
1 For additional information about the ADC within your device, use the listed part number to locate the appropriate Analog
Devices data sheet at www.analog.com.

NI 5731/5732/5733/5734R User Guide and Specifications 16 ni.com
Typical Specifications
ADC DC offset
NI 5731 ..........................................................±5.2 mV
NI 5732 ..........................................................±6.6 mV
NI 5733/5734 .................................................±7.1 mV
DC-coupled common-mode output .......................±0.8 mV (50 terminated)
Full Scale Input
DC Gain Error
Noise
Table 5. Full Scale Input
Device Gain = 0 dB
Gain = 6 dB
(FS at 0 dB divided by 2)
Gain = 12 dB
(FS at 0 dB divided by 4)
NI 5731 2.070 Vpk-pk 1.035 Vpk-pk 0.5175 Vpk-pk
NI 5732 2.055 Vpk-pk 1.028 Vpk-pk 0.5138 Vpk-pk
NI 5733/5734 2.085 Vpk-pk 1.043 Vpk-pk 0.5212 Vpk-pk
Table 6. DC Gain Error (Full Scale)
Device Gain = 0 dB Gain = 6 dB Gain = 12 dB
NI 5731 ±0.9% ±1.2% ±1.7%
NI 5732 ±0.5% ±0.8% ±1.4%
NI 5733/5734 ±0.6% ±0.8% ±1.5%
Table 7. Average Noise Density
Device Gain (dB)
Full Scale
(Vpk-pk)
Average Noise Density
(nV/√Hz) (dBm/Hz) (dBFS/Hz)
NI 5731 02.070 61.5 –131.2 –141.2
61.035 33.0 –136.6 –140.6
12 0.5175 18.6 –141.6 –139.6
NI 5732 02.055 33.4 –136.5 –148.4
61.0275 18.3 –141.7 –147.6
12 0.51375 10.7 –146.4 –146.3
NI 5733/5734 02.085 26.9 –138.4 –148.4
61.0425 14.8 –143.6 –147.6
12 0.52125 8.6 –148.3 –146.3

©National Instruments Corporation 17 NI 5731/5732/5733/5734R User Guide and Specifications
Passband
AC-coupling low cut-off frequency (–3 dB)..........20 kHz
DC-coupling low cut-off frequency .......................0 Hz
Group Delay Flatness
Signal to Noise Ratio (SNR) 1
Total Harmonic Distortion (THD) 1
Table 8. Passband High Cut-off Frequency (–3 dB)
Device Filter Bypass Elliptic Filter Bessel Filter
NI 5731 120 MHz 15.8 MHz 8.1 MHz
NI 5732 110 MHz 29.6 MHz 16.1 MHz
NI 5733/5734 117 MHz 37.1 MHz 24.1 MHz
Table 9. Maximum Frequency to 2 ns
Device Elliptic Filter Bessel Filter
NI 5731 9MHz 18 MHz
NI 5732 20 MHz 37 MHz
NI 5733/5734 30 MHz 53 MHz
1 Measured at –1 dBFS.
Table 10. SNR 1
Device Input Gain = 0 dB Gain = 6 dB Gain = 12 dB
NI 5731 4.9 MHz 67.2 dB 66.6 dB 65.6 dB
NI 5732 9.7 MHz 69.5 dB 68.7 dB 67.4 dB
NI 5733/5734 9.7 MHz 69.6 dB 68.8 dB 67.5 dB
Table 11. THD 1
Device Input Gain = 0 dB Gain = 6 dB Gain = 12 dB
NI 5731 4.6 MHz –87.1 dBc –87.1 dBc –84.1 dBc
NI 5732 9.7 MHz –83.9 dBc –87.7 dBc –89.5 dBc
NI 5733/5734 9.7 MHz –80.5 dBc –85.0 dBc –86.0 dBc

NI 5731/5732/5733/5734R User Guide and Specifications 18 ni.com
Spurious-Free Dynamic Range (SFDR) 1
AI Channel-to-Channel Crosstalk
Note The following crosstalk tables are measured at 0 dB gain with a –1 dBFS 10 MHz signal on
the aggressor channel while the other channels are terminated at 50 When measuring crosstalk at
6 dB and 12 dB gain, the crosstalk is 6 dB and 12 dB worse, respectively.
Note For NI 5731/5732 devices only, the crosstalk is 4 dB worse than the values in Table 13 when
you configure both channels to use filters.
1 Measured at –1 dBFS.
Table 12. SFDR 1
Device Input Gain = 0 dB Gain = 6 dB Gain = 12 dB
NI 5731 4.9 MHz –87 dBc –87 dBc –90 dBc
NI 5732 9.7 MHz –85 dBc –89 dBc –91 dBc
NI 5733/5734 9.7 MHz –83 dBc –86 dBc –87 dBc
Table 13. NI 5731/5732/5733/5734: AI Channel Crosstalk
Aggressor
Channel N(0..3)
Receiver Channel (50 terminated)
Adjacent Channel Path (N– 1) Adjacent Channel Path (N+ 1)
Bypass Elliptic Bessel Bypass Elliptic Bessel
Filter Bypass –102 dB –97 dB –100 dB –98 dB –89 dB –81 dB
Elliptic Filter –102 dB –77 dB –81 dB –104 dB –79 dB –77 dB
Bessel Filter –87 dB –73 dB –77 dB –103 dB –83 dB –80 dB
Table 14. NI 5734 only: AI Channel Crosstalk
Aggressor
Channel N(0..3)
Receiver Channel (50 terminated)
Channel Path (N± 2) Channel Path (N± 3)
Bypass
Elliptic or
Bessel Filter Bypass
Elliptic or
Bessel Filter
Filter Bypass –112 dB –102 dB –112 dB –107 dB
Elliptic Filter –112 dB –85 dB –112 dB –90 dB
Bessel Filter –112 dB –86 dB –112 dB –90 dB

©National Instruments Corporation 19 NI 5731/5732/5733/5734R User Guide and Specifications
Phase adjust DAC range
NI 5731 ..........................................................406 ± 13 degrees
NI 5732 ..........................................................427 ± 13 degrees
NI 5733/5734 .................................................429 ± 9 degrees
Frequency adjust DAC range .................................±160 ppm
Data rate (IOModuleClock0) .................................Sample rate

NI 5731/5732/5733/5734R User Guide and Specifications 20 ni.com
Measurements
Frequency Response
Figure 8. AC-Coupled Low Frequency Response (Multiple Channels Overlaid)
Figure 9. Filter Bypass Frequency Response (Multiple Channels Overlaid)
10 k
–6
Amplitude (dBFS)
Frequency (Hz)
100 k
–1
–2
–3
–4
–5
0
1 M
1
–8
Amplitude (dBFS)
Frequency (MHz)
10 100
–7
–6
–5
–4
–3
–2
–1
0
1
NI 5732NI 5731 NI 5733/5734