NI NI7831R Ni r series multifunction rio Datasheet

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Requirements and Compatibility | Ordering Information | Detailed Specifications | Pinouts/Front Panel Connections
For user manuals and dimensional drawings, visit the product page resources tab on ni.com.
Last Revised: 2011-03-08 11:32:31.0
NI R Series Multifunction RIO
Integrated Analog and Digital I/O with FPGA Technology
Onboard FPGA chip, programmable with the LabVIEW FPGA Module
User-defined triggering, timing, and decision making in hardware with 25 ns resolution
Up to 160 digital lines configurable as inputs, outputs, counters, or custom logic at
rates up to 40 MHz
Up to 8 analog inputs, independent sampling rates up to 750 kHz, 16-bit resolution
Direct memory access (DMA) channels for high-speed data streaming
Up to 8 analog outputs, independent update rates up to 1 MHz, 16-bit resolution
Implement custom control logic, inline signal processing, and digital communication
protocols
Overview
National Instruments reconfigurable I/O (RIO) technology gives you the ability to define your own custom measurement hardware circuitry using reconfigurable field-programmable
gate array (FPGA) chips and NI LabVIEW graphical development tools. NI R Series multifunction RIO devices offer the best combination of value and performance by integrating
this FPGA technology with eight analog inputs, eight analog outputs, and 96 digital I/O lines, all into a single device that is offered on standard PC form factors such as PCI, PCI
Express, and PXI/CompactPCI. Using the LabVIEW FPGA Module, you can create your own hardware personalities for custom data acquisition, high-speed control, digital
communications protocols, sensor simulation, hardware-in-the-loop test, and onboard signal processing without in-depth knowledge of hardware description languages.
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Requirements and Compatibility
OS Information
Driver Information
Windows 2000/XP
Software Compatibility
NI-RIO
LabVIEW FPGA Module
Windows Vista x64/x86
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Comparison Tables
Product
Bus/Form
Factor
Analog Inputs
(16-bit)
FPGA
Max Sampling Rate per
Channel (kS/s)
Analog Outputs
(16-bit)
Max Update Rate per
Channel (MS/s)
Digital
I/O
Multifunction R
Series
NI 7851R
PCI Express,
PCI
Virtex-5
LX30
8
750
8
1
96
NI 7852R
PCI Express,
PXI
Virtex-5
LX50
8
750
8
1
96
NI 7853R
PXI
Virtex-5
LX85
8
750
8
1
96
NI 7854R
PXI
Virtex-5
LX110
8
750
8
1
96
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Product
Bus/Form
Factor
Analog Inputs
(16-bit)
FPGA
Max Sampling Rate per
Channel (kS/s)
Analog Outputs
(16-bit)
Max Update Rate per
Channel (MS/s)
Digital
I/O
NI 7841R
PCI Express,
PXI
Virtex-5
LX30
8
200
8
1
96
NI 7842R
PCI Express,
PXI
Virtex-5
LX50
8
200
8
1
96
NI 7830R
PCI, PXI
Virtex-II 1M
Gates
4
200
4
1
56
NI 7831R
PCI, PXI
Virtex-II 1M
Gates
8
200
8
1
96
NI 7833R
PCI, PXI
Virtex-II 3M
Gates
8
200
8
1
96
NI 7811R
PCI, PXI
Virtex-II 1M
Gates
-
-
-
-
160
NI 7813R
PCI, PXI
Virtex-II 3M
Gates
-
-
-
-
160
Digital R Series
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Application and Technology
Graphical Programming with LabVIEW FPGA
The LabVIEW FPGA Module uses LabVIEW embedded technology to extend LabVIEW graphical development and target FPGAs on NI RIO hardware. LabVIEW is distinctly
suited for FPGA programming because it clearly represents parallelism and data flow. With LabVIEW FPGA, you can create custom measurement and control hardware without
low-level hardware description languages or board-level design. You can use this custom hardware for unique timing and triggering routines, ultrahigh-speed control, interfacing to
digital protocols, digital signal processing (DSP), and many other applications requiring high-speed hardware reliability and tight determinism.
Low-Cost Signal Conditioning and Channel Expansion
The NI 9151 R Series expansion chassis connects directly to any digital connector on R Series devices and houses up to four C Series I/O modules for industrial signal
conditioning, I/O channel expansion, and direct sensor connectivity.
New Virtex-5 FPGAs
The new NI 784xR and NI 785xR devices use new Virtex-5 FPGAs with improved optimization capabilities that provide faster code execution and increased code capacity. These
Virtex-5 FPGAs feature a new six-input lookup table (LUT) architecture for substantially improved resource utilization as well as DSP48 slices that make it possible for you to
implement more complex digital signal processing at faster rates. Previous-generation Virtex-II FPGAs use four-input LUTs for up to 16 combinations of digital logic values. The
new Virtex-5 FPGAs use six-input LUTs for up to 64 combinations, increasing the amount of logic that you can implement per slice. In addition, the slices themselves are placed in
closer proximity to each other to reduce the propagation delay of electrons and increase overall execution rates. The single-cycle timed loop structure in LabVIEW FPGA takes full
advantage of six-input LUTs for substantially improved resource utilization. This means you can optimize more LabVIEW FPGA code to fit within Virtex-5 FPGAs and perform
more operations per clock cycle.
Figure 1. General logic benchmarks show that Virtex-5 FPGAs offer larger sizes when compared to Virtex-II FPGAs.
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Figure 2. Execution speed benchmarks show that Virtex-5 FPGAs feature faster processing capabilities when compared to Virtex-II FPGAs.
For more information on LabVIEW FPGA benchmarks for Virtex-5 FPGAs, visit ni.com/info and enter lvfpgabenchmarks.
Required Software for R Series Multifunction RIO
NI 781xR and 783xR devices require the LabVIEW FPGA Module 7.1 or later and NI-RIO 1.3 or later driver software.
PXI-7841R/42R/51R/52R modules require the LabVIEW FPGA Module 8.5.1 or later and NI-RIO 2.4 or later.
PXI-7853R/54R modules require the LabVIEW FPGA Module 8.6 or later and NI-RIO 3.0 or later.
NI PCIe-7841R/42R/51R/52R boards require the LabVIEW FPGA Module 8.5.1 or later and NI-RIO 3.1 or later.
Recommended Accessories
High Performance
Custom Cabling
SHC68-68-RMIO - High-performance shielded 68-conductor cable terminated with a
VHDCI 68-pin male connector at one end and a 68-pin female 0.050 D-type
connector at the other end that has been specifically designed for the multifunction
I/O connector on R Series multifunction RIO devices.
1 m ............................................................................................189588-01
2 m ............................................................................................189588-02
SHC68-NT-S - Shielded 68-conductor cable terminated with a 68-pin male VHDCI
connector at one end and unterminated bare wires at the other. Use this cable, ideal
for OEM applications, to create custom cabling solutions for R Series devices.
2 m ............................................................................................189041-02
SHC68-68-RDIO - High-performance shielded 68-conductor cable terminated with a
VHDCI 68-pin male connector at one end and a 68-pin female 0.050 D-type
connector at the other end that has been specifically designed for the digital I/O
connector on R Series multifunction RIO devices.
1 m ............................................................................................191667-01
SCB-68 - Shielded I/O connector block for rugged, very low-noise signal termination
for connecting to 68-pin devices. The SCB-68 also includes two general-purpose
breadboard areas.
Dimensions - 19.5 by 15.2 by 4.5 cm (7.7 by 6.0 by 1.8 in.)
SCB-68 ........................................................................................776844-01
NSC68-262650 - Shielded cable terminated with a VHDCI 68-pin male connector at
one end and two 26-pin ribbon connectors and one 50-pin ribbon connector on the
other; designed to connect the R Series RMIO connector to standard ribbon cable
accessories.
1 m ............................................................................................189151-01
NSC68-5050 - Shielded cable terminated with a VHDCI 68-pin male connector at
one end and two 50-pin ribbon connectors on the other; designed to connect R
Series RDIO connectors to standard ribbon cable accessories.
1 m ............................................................................................189152-01
Low Cost
SH68-C68-S - General-purpose shielded cable that connects any type of R Series
connector to 68-pin connector blocks.
0.5 m..........................................................................................186381-0R5
1 m ............................................................................................186381-01
2 m ............................................................................................186381-02
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Ordering Information
For a complete list of accessories, visit the product page on ni.com.
Products
Part Number
Recommended Accessories
Part Number
NI PXI-7811R
NI PXI-7811R
778800-01
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Requires: 1 Cables , 1 Connector Blocks ;
Connector 0:
Cables: Shielded - SHC68-68-RDIO Cable (1m)
**Also Available: [Unshielded]
191667-01
Connector Blocks: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 1:
Cables: Shielded - SHC68-68-RDIO Cable (1m)
**Also Available: [Unshielded]
191667-01
Connector Blocks: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 2:
Cables: **Also Available: [Unshielded]
Connector Blocks: Connector 3:
Cables: **Also Available: [Unshielded]
Connector Blocks: NI PXI-7813R
NI PXI-7813R
Requires: 1 Cables , 1 Connector Blocks ;
779362-01
Connector 0:
Cables: Shielded - SHC68-68-RDIO Cable (1m)
**Also Available: [Unshielded]
191667-01
Connector Blocks: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 1:
Cables: Shielded - SHC68-68-RDIO Cable (1m)
**Also Available: [Unshielded]
191667-01
Connector Blocks: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 2:
Cables: **Also Available: [Unshielded]
Connector Blocks: Connector 3:
Cables: **Also Available: [Unshielded]
Connector Blocks: NI PCI-7830R
NI PCI-7830R
Requires: 2 Cable , 2 Connector Block ;
779361-01
Connector 0:
Cable: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 1:
Cable: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
NI PXI-7830R
NI PXI-7830R
Requires: 1 Cable , 1 Connector Block ;
779364-01
Connector 0:
Cable: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 1:
Cable: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
NI PCI-7831R
NI PCI-7831R
Requires: 3 Cables , 3 Connector Block ;
778797-01
Connector 0:
Cables: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 1:
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Cables: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 2:
Cables: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
NI PXI-7831R
NI PXI-7831R
Requires: 1 Cables , 1 Connector Block ;
778668-01
Connector 0:
Cables: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 1:
Cables: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 2:
Cables: **Also Available: [Unshielded]
Connector Block: NI PCI-7833R
NI PCI-7833R
Requires: 3 Cables , 3 Connector Blocks ;
779359-01
Connector 0:
Cables: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Blocks: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 1:
Cables: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Blocks: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 2:
Cables: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Blocks: Spring-Screw_Terminals - SCB-68A
782536-01
NI PXI-7833R
NI PXI-7833R
Requires: 1 Cables , 1 Connector Blocks ;
779360-01
Connector 0:
Cables: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Blocks: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 1:
Cables: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Blocks: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 2:
Cables: **Also Available: [Unshielded]
Connector Blocks: NI PXI-7841R
NI PXI-7841R
Requires: 1 Cable , 1 Connector Block ;
780337-01
Connector 0:
Cable: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 1:
Cable: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 2:
Cable: **Also Available: [Unshielded]
5/17
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Connector Block: NI PXI-7842R
NI PXI-7842R
Requires: 1 Cable , 1 Connector Block ;
780338-01
Connector 0:
Cable: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 1:
Cable: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 2:
Cable: **Also Available: [Unshielded]
Connector Block: NI PXI-7851R
NI PXI-7851R
Requires: 1 Cable , 1 Connector Block ;
780339-01
Connector 0:
Cable: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 1:
Cable: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 2:
Cable: **Also Available: [Unshielded]
Connector Block: NI PXI-7852R
NI PXI-7852R
Requires: 1 Cable , 1 Connector Block ;
780340-01
Connector 0:
Cable: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 1:
Cable: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 2:
Cable: **Also Available: [Unshielded]
Connector Block: NI PXI-7853R
NI PXI-7853R
Requires: 1 Cables , 1 Connector Block ;
780341-01
Connector 0:
Cables: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 1:
Cables: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 2:
Cables: **Also Available: [Unshielded]
Connector Block: NI PXI-7854R
NI PXI-7854R
Requires: 1 Cables , 1 Connector Block ;
780342-01
Connector 0:
6/17
www.ni.com
Cables: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 1:
Cables: Shielded - SHC68-68-RMIO Cable (2m)
**Also Available: [Unshielded]
189588-02
Connector Block: Spring-Screw_Terminals - SCB-68A
782536-01
Connector 2:
Cables: **Also Available: [Unshielded]
Connector Block: Back to Top
Software Recommendations
NI LabVIEW FPGA Module
Create your own I/O hardware without VHDL coding or board design
Graphically configure FPGAs on NI reconfigurable I/O (RIO) hardware targets
Define your own control algorithms with loop rates up to 300 MHz
Execute multiple tasks simultaneously and deterministically
Implement custom timing and triggering logic, digital protocols, and DSP algorithms
Incorporate existing HDL code and third-party IP including Xilinx CORE Generator functions
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Support and Services
System Assurance Programs
NI system assurance programs are designed to make it even easier for you to own an NI system. These programs include configuration and deployment services for your NI PXI,
CompactRIO, or Compact FieldPoint system. The NI Basic System Assurance Program provides a simple integration test and ensures that your system is delivered completely
assembled in one box. When you configure your system with the NI Standard System Assurance Program, you can select from available NI system driver sets and application
development environments to create customized, reorderable software configurations. Your system arrives fully assembled and tested in one box with your software preinstalled.
When you order your system with the standard program, you also receive system-specific documentation including a bill of materials, an integration test report, a recommended
maintenance plan, and frequently asked question documents. Finally, the standard program reduces the total cost of owning an NI system by providing three years of warranty
coverage and calibration service. Use the online product advisors at ni.com/advisor to find a system assurance program to meet your needs.
Calibration
NI measurement hardware is calibrated to ensure measurement accuracy and verify that the device meets its published specifications. To ensure the ongoing accuracy of your
measurement hardware, NI offers basic or detailed recalibration service that provides ongoing ISO 9001 audit compliance and confidence in your measurements. To learn more
about NI calibration services or to locate a qualified service center near you, contact your local sales office or visit ni.com/calibration.
Technical Support
Get answers to your technical questions using the following National Instruments resources.
Support - Visit ni.com/support to access the NI KnowledgeBase, example programs, and tutorials or to contact our applications engineers who are located in NI sales
offices around the world and speak the local language.
Discussion Forums - Visit forums.ni.com for a diverse set of discussion boards on topics you care about.
Online Community - Visit community.ni.com to find, contribute, or collaborate on customer-contributed technical content with users like you.
Repair
While you may never need your hardware repaired, NI understands that unexpected events may lead to necessary repairs. NI offers repair services performed by highly trained
technicians who quickly return your device with the guarantee that it will perform to factory specifications. For more information, visit ni.com/repair.
Training and Certifications
The NI training and certification program delivers the fastest, most certain route to increased proficiency and productivity using NI software and hardware. Training builds the skills
to more efficiently develop robust, maintainable applications, while certification validates your knowledge and ability.
Classroom training in cities worldwide - the most comprehensive hands-on training taught by engineers.
On-site training at your facility - an excellent option to train multiple employees at the same time.
Online instructor-led training - lower-cost, remote training if classroom or on-site courses are not possible.
Course kits - lowest-cost, self-paced training that you can use as reference guides.
Training memberships and training credits - to buy now and schedule training later.
7/17
www.ni.com
Visit ni.com/training for more information.
Extended Warranty
NI offers options for extending the standard product warranty to meet the life-cycle requirements of your project. In addition, because NI understands that your requirements may
change, the extended warranty is flexible in length and easily renewed. For more information, visit ni.com/warranty.
OEM
NI offers design-in consulting and product integration assistance if you need NI products for OEM applications. For information about special pricing and services for OEM
customers, visit ni.com/oem.
Alliance
Our Professional Services Team is comprised of NI applications engineers, NI Consulting Services, and a worldwide National Instruments Alliance Partner program of more than
700 independent consultants and integrators. Services range from start-up assistance to turnkey system integration. Visit ni.com/alliance.
Back to Top
Detailed Specifications
This document lists the specifications of the NI 781 xR/783xR/784xR/785xR. These specifications are typical at 25 °C unless otherwise noted.
Analog Input (NI 783x R/784x R/785x R Only)
Input Characteristics
Number of channels
NI 7830R
4
NI 7831R/7833R/7841R/7842R/7851R/7852R/7853R/7854R
8
Input modes
DIFF, RSE, NRSE (software-selectable; selection applies to all channels)
Type of ADC
Successive approximation
Resolution
16 bits, 1 in 65,536
Conversion time
NI 783xR/NI 784xR
4 μs
NI 785xR
1 μs
Maximum sampling rate
NI 783xR/784xR
200 kS/s (per channel)
NI 785xR
750 kS/s (per channel)
Input impedance
Powered on
10 GΩ in parallel with 100 pF
Powered off/overload
4.0 kΩ min
Input signal range
±10 V
Input bias current
NI 783xR
±2 nA
NI 784xR/785xR
±5 nA
Input offset current
NI 783xR
±1 nA
NI 784xR/785xR
±5 nA
Input coupling
DC
Maximum working voltage (signal + common mode)
Inputs should remain within ±12 V of ground
Overvoltage protection
Powered on
±42 V
Powered off
±35 V
Accuracy Information
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NI 783xR
Nominal Range (V)
Absolute Accuracy
% of Reading
Positive Full
Scale
10.0
Negative Full
Scale
–10.0
24
Hours
0.0496
Offset (μ
V)
Noise + Quantization (
μV)
1 Year
Single
Point
0.0507 2,542
1,779
Relative Accuracy
Temp Drift (%/
°C)
Absolute Accuracy at Full Scale
(±mV)
Averaged
165
Resolution (μV)
Single
Point
0.0005
7.78
2,170
Averaged
217
Note Accuracies are valid for measurements following an internal calibration. Averaged numbers assume dithering and averaging of 100 single-channel readings.
Measurement accuracies are listed for operational temperatures within ±1 °C of internal calibration temperature and ±10 °C of external or factory-calibration
temperature.
NI 784xR/NI 785xR
Nominal Range (V)
Absolute Accuracy
% of Reading
Positive Full
Scale
10.0
Negative Full
Scale
–10.0
24
Hours
0.0186
Offset (μ
V)
Noise + Quantization (
μV)
1 Year
Single
Point
0.0228 1,591
1,029
Relative Accuracy
Temp Drift (%/
°C)
Absolute Accuracy at Full Scale
(±mV)
Averaged
91.6
Resolution (μV)
Single
Point
0.0005
3.97
1,205
Averaged
121
Note Accuracies are valid for measurements following an internal calibration. Averaged numbers assume dithering and averaging of 100 single-channel readings.
Measurement accuracies are listed for operational temperatures within ±1 °C of internal calibration temperature and ±10 °C of external or factory-calibration
temperature.
DC Transfer Characteristics
INL
NI 783xR
±3 LSB typ, ±6 LSB max
NI 784xR/785xR
±1 LSB typ, ±3 LSB max
DNL
NI 783xR
±1.0 to ±2.0 LSB max
NI 784xR/785xR
±0.4 LSB typ, ±0.9 LSB max
No missing codes
NI 783xR
16 bits typ, 15 bits min
NI 784xR/785xR
16 bits guaranteed
CMRR, DC to 60 Hz
–86 dB
Dynamic Characteristics
Bandwidth
NI 783xR
Small signal (– 3 dB)
650 kHz
Large signal (1% of THD)
55 kHz
NI 784xR/NI 785xR
Small signal (– 3 dB)
1 MHz
Large signal (1% of THD)
500 kHz
Settling Time
Device
Step Size
Accuracy
±16 LSB ±4 LSB ±2 LSB
NI 783xR
±20.0 V
7.5 μs
10.3 μs 40 μs
±2.0 V
2.7 μs
4.1 μs
5.1 μs
±0.2 V
1.7 μs
2.9 μs
3.6 μs
2.1 μs
4.2 μs
8 μs
NI 784xR/ 785xR ±20.0 V
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Device
Step Size
Accuracy
±16 LSB ±4 LSB ±2 LSB
±2.0 V
1.3 μs
1.6 μs
1.8 μs
±0.2 V
0.8 μs
1.1 μs
1.2 μs
Crosstalk
–80 dB, DC to 100 kHz
Analog Output (NI 783x R/784x R/785x R Only)
Output Characteristics
Output type
Single-ended, voltage output
Number of channels
NI 7830R
4
NI 7831R/7833R/7841R/7842R/7851R/7852R/7853R/7854R
8
Resolution
16 bits, 1 in 65,536
Update time
1.0 μs
Maximum update rate
1 MS/s
Type of DAC
Enhanced R-2R
Accuracy Information
Nominal Range (V)
Absolute Accuracy
% of Reading
Positive Full Scale
10.0
Negative Full Scale
–10.0
24 Hours
0.0335
Offset (μV)
Absolute Accuracy at Full Scale (±mV)
Temp Drift (%/ °C)
1 Year
0.0351
2366
0.0005
5.88
Note Accuracies are valid for analog output following an internal calibration. Analog output accuracies are listed for operation temperatures within ±1 °C of internal
calibration temperature and ±10 °C of external or factory calibration temperature. Temp Drift applies only if ambient is greater than ±10 °C of previous external
calibration.
DC Transfer Characteristics
INL
±0.5 LSB typ, ±4.0 LSB max
DNL
±0.5 LSB typ, ±1 LSB max
Monotonicity
16 bits, guaranteed
Voltage Output
Range
±10 V
Output coupling
DC
Output impedance
NI 783xR
1.25 Ω
NI 784xR/785xR
0.5 Ω
Current drive
±2.5 mA
Protection
Short-circuit to ground
Power-on state
User configurable
Dynamic Characteristics
Settling time
Step Size
Accuracy
±16 LSB ±4 LSB ±2 LSB
±20.0 V
6.0 μs
6.2 μs
7.2 μs
±2.0 V
2.2 μs
2.9 μs
3.8 μs
±0.2 V
1.5 μs
2.6 μs
3.6 μs
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Slew rate
10 V/μs
Noise
150 μVrms, DC to 1 MHz
Glitch energy at midscale transition
±200 mV for 3 μs
Digital I/O
Number of channels
NI 781xR
160
NI 7830R
56
NI 7831R/7833R/7841R/7842R/7851R/7852R/7853R/7854R
96
Compatibility
TTL
Digital logic levels
Level
Min
Max
Input low voltage (V IL)
0.0 V 0.8 V
Input high voltage (V IH)
2.0 V 5.5 V
Output low voltage (V OL), where I OUT = –4 mA 0 V
0.4 V
Output high voltage (V OH), where I OUT = 4 mA 2.4 V 3.3 V
Output current
Source
4.0 mA
Sink
4.0 mA
Input leakage current
±10 μA
Power-on state
Programmable, by line
Protection
Input
NI 781xR/783xR
–0.5 to 7.0 V, single line
NI 784xR/785xR
–20.0 to 20.0 V, single line
Output
Short-circuit (up to eight lines may be shorted at a time)
Minimum pulse width
Input
25 ns
Output
12.5 ns
Minimum sampling period
5 ns
Reconfigurable FPGA
NI 7811R/7830R/7831R
FPGA type
Virtex-II V1000
Number of flip-flops
10,240
Number of 4-input LUTs
10,240
Number of 18 × 18 multipliers
40
Embedded block RAM
720 kbits
NI 7813R/7833R
FPGA type
Virtex-II V3000
Number of flip-flops
28,672
Number of 4-input LUTs
28,672
Number of 18 × 18 multipliers
96
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Embedded block RAM
1,728 kbits
NI 7841R/7851R
FPGA type
Virtex-5 LX30
Number of flip-flops
19,200
Number of 6-input LUTs
19,200
Number of DSP48 slices (25 × 18 multipliers)
32
Embedded block RAM
1,152 kbits
NI 7842R/7852R
FPGA type
Virtex-5 LX50
Number of flip-flops
28,800
Number of 6-input LUTs
28,800
Number of DSP48 slices (25 × 18 multipliers)
48
Embedded block RAM
1,728 kbits
NI 7853R
FPGA type
Virtex-5 LX85
Number of flip-flops
51,840
Number of 6-input LUTs
51,840
Number of DSP48 slices (25 × 18 multipliers)
48
Embedded block RAM
3,456 kbits
NI 7854R
FPGA type
Virtex-5 LX110
Number of flip-flops
69,120
Number of 6-input LUTs
69,120
Number of DSP48 slices (25 × 18 multipliers)
64
Embedded block RAM
4,608 kbits
Timebase
40, 80, 120, 160, or 200 MHz
Timebase reference sources
NI PCI-781xR/783xR
Onboard clock only
NI PCIe-784xR/785xR
Onboard clock only
NI PXI-78xxR
Onboard clock, phase-locked to PXI 10 MHz clock
Timebase accuracy, onboard clock
±100 ppm, 250 ps peak-to-peak jitter
Phase locked to PXI 10 MHz Clock (NI PXI-78xxR only)
Adds 350 ps peak-to-peak jitter
Additional frequency-dependent peak-to-peak jitter
NI 781xR/783xR
40 MHz
None
80 MHz
400 ps
120 MHz
720 ps
160 MHz
710 ps
200 MHz
700 ps
NI 784xR/785xR
40 MHz
None
80 MHz
460 ps
120 MHz
172 ps
160 MHz
172 ps
200 MHz
152 ps
Calibration (NI 783x R/784x R/785x R Only)
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Recommended warm-up time
15 minutes
Calibration interval
1 year
Onboard calibration reference
DC level
5.000 V (±3.5 mV) (actual value stored in Flash memory)
Temperature coefficient
±5 ppm/°C max
Long-term stability
±20 ppm/
Note Refer to Calibration Certificates at ni.com/calibration to generate a calibration certificate for the NI 78 xxR.
Bus Interface
PCI/PCIe/PXI
Master, slave
Data transfers
DMA, interrupts, programmed I/O
Number of DMA channels
3
Power Requirement
+5 VDC (±5%) 1
NI 781xR
9 mA typ
NI 7830R/7831R
330 mA typ
NI 7833R
364 mA typ
NI PXI-7841R/7851R
125 mA typ
NI PXI-7842R/7852R
136 mA typ
NI 7853R
460 mA typ
NI 7854R
484 mA typ
+3.3 VDC (±5%) 2
NI 7811R
650 mA typ
NI 7813R
850 mA typ
NI 7830R/7831R
462 mA typ
NI 7833R
727 mA typ
NI PCIe-7841R/7851R
847 mA typ
NI PCIe-7842R/7852R
984 mA typ
NI PXI-7841R/7851R
525 mA typ
NI PXI-7842R/7852R
604 mA typ
NI 7853R
640 mA typ
NI 7854R
843 mA typ
+12 V
NI 784xR/785xR
0.5 A
–12 V
NI PXI-784xR/785xR
0.25 A
+5V terminal
Connector 0
0.5 A max 3
Connector 1
0.5 A max3 3
Connector 2
0.5 A max3 3
All connectors
1.5 A max3 3 , 4
To calculate the total current sourced by the digital outputs, use the following equation:
current sourced on channel i
Power available at I/O connectors
4.50 to 5.25 VDC at 1 A total, 250 mA per I/O connector pin
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Physical
Dimensions (not including connectors)
NI PCI-781xR/783xR
17 cm by 11 cm (6.7 in. by 4.3 in.)
NI PCIe-784xR/785xR
17 cm by 11 cm (6.7 in. by 4.3 in.)
NI PXI-78xxR
16 cm by 10 cm (6.3 in. by 3.9 in.)
Weight
NI PCI-781xR/783xR
112 g
NI PCIe-784xR/785xR
127 g
NI PXI-78xxR
152 g
I/O connectors
NI 781xR
Four 68-pin female high-density VHDCI type
NI 7830R
Two 68-pin female high-density VHDCI type
NI 783xR/784xR/785xR
Three 68-pin female high-density VHDCI type
Disk drive power connector (PCIe devices)
Standard ATX peripheral connector (not serial ATA)
Maximum Working Voltage (NI 783xR/784xR/785xR Only)
Maximum working voltage refers to the signal voltage plus the common-mode voltage.
Channel-to-earth
±12 V, Measurement Category I
Channel-to-channel
±24 V, Measurement Category I
Caution Do not use the NI 783xR/784xR/785xR for connection to signals in Measurement Categories II, III, or IV.
Environmental
The NI 78xxR is intended for indoor use only.
Operating Environment
NI 781xR
0 °C to 55 °C, tested in accordance with IEC-60068-2-1 and IEC-60068-2-2.
NI 7830R, NI 7831R
40 MHz or 80 MHz timebase
0 °C to 55 °C, tested in accordance with IEC-60068-2-1 and IEC-60068-2-2.
NI PCI/PXI-7833R
40 MHz timebase
0 °C to 55 °C, tested in accordance with IEC-60068-2-1 and IEC-60068-2-2.
80 MHz timebase
0 °C to 55 °C except the following: 0 °C to 45 °C when installed in an NI
PXI-1000/B or NI PXI-101X, tested in accordance with IEC-60068-2-1 and
IEC-60068-2-2.
NI PXI-7841R/7842R/7851R/7852R/7853R/7854R
40 MHz timebase
0 °C to 55 °C, tested in accordance with IEC-60068-2-1 and IEC-60068-2-2.
80 MHz timebase
0 °C to 55 °C except the following: 0 °C to 45 °C when installed in an NI
PXI-1000/B or NI PXI-101X, tested in accordance with IEC-60068-2-1 and
IEC-60068-2-2.
NI PCIe-7841R/7842R/7851R/7852R
40 MHz or 80 MHz timebase
0 °C to 40 °C, tested in accordance with IEC-60068-2-1 and IEC-60068-2-2.
Relative humidity range
10% to 90%, noncondensing, tested in accordance with IEC-60068-2-56.
Altitude
2,000 m at 25 °C ambient temperature
Storage Environment
NI PCI/PXI-781xR/783xR
–20 °C to 70 °C, tested in accordance with IEC-60068-2-1 and IEC-60068-2-2.
NI PCIe-784xR/785xR
–20 °C to 70 °C, tested in accordance with IEC-60068-2-1 and IEC-60068-2-2.
NI PXI-784xR/785xR
–40 °C to 70 °C, tested in accordance with IEC-60068-2-1 and IEC-60068-2-2.
Ambient temperature range
–20 °C to 70 °C, tested in accordance with IEC-60068-2-1 and IEC-60068-2-2.
Relative humidity range
5% to 95%, noncondensing, tested in accordance with IEC-60068-2-56.
Note Clean the device with a soft, non-metallic brush. Make sure that the device is completely dry and free from contaminants before returning it to service.
Shock and Vibration (for NI PXI-78 xxR Only)
30 g peak, half-sine, 11 ms pulse; tested in accordance with IEC-60068-2-27.
Test profile developed in accordance with MIL-PRF-28800F.
Operational shock
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Random vibration
5 Hz to 500 Hz, 0.3 grms
Operating
5 Hz to 500 Hz, 2.4 grms, tested in accordance with IEC-60068-2-64.
Nonoperating
Nonoperating test profile exceeds the requirements of MIL-PRF-28800F, Class
3.
Safety
This product is designed to meet the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use:
IEC 61010-1, EN 61010-1
UL 61010-1, CSA 61010-1
Note For UL and other safety certifications, refer to the product label or the Online Product Certification section.
Electromagnetic Compatibility
This product is designed to meet the requirements of the following standards of EMC for electrical equipment for measurement, control, and laboratory use:
EN 61326 (IEC 61326): Class A emissions; Basic immunity
EN 55011 (CISPR 11): Group 1, Class A emissions
AS/NZS CISPR 11: Group 1, Class A emissions
FCC 47 CFR Part 15B: Class A emissions
ICES-001: Class A emissions
Note For the standards applied to assess the EMC of this product, refer to the Electromagnetic Compatibility section.
Note For EMC compliance, operate this device with shielded cabling.
CE Compliance
This product meets the essential requirements of applicable European Directives, as amended for CE marking, as follows:
2006/95/EC; Low-Voltage Directive (safety)
2004/108/EC; Electromagnetic Compatibility Directive (EMC)
Note For the standards applied to assess the EMC of this product, refer to the Online Product Certification section.
Online Product Certification
Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for this product, visit
ni.com/certification, search by module number or product line, and click the appropriate link in the Certification column.
Environmental Management
National Instruments is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous
substances from our products is beneficial not only to the environment but also to NI customers.
For additional environmental information, refer to the NI and the Environment Web page at ni.com/environment. This page contains the environmental regulations and directives
with which NI complies, as well as other environmental information not included in this document.
Waste Electrical and Electronic Equipment (WEEE)
EU Customers At the end of their life cycle, all products must be sent to a WEEE recycling center. For more information about WEEE recycling centers and National
Instruments WEEE initiatives, visit ni.com/environment/weee.htm.
1
Does not include current drawn from the +5 V line on the I/O connectors.
2
Does not include current sourced by the digital outputs.
3
(NI PCIe-78xxR only) Total maximum terminal current for all connectors is 100 mA unless disk drive connector is attached.
4
(NI 784xR/785xR only) The NI 784xR/785xR has a user-replaceable socketed fuse that opens when current exceeds the current specification. Refer to the NI R Series
Multifunction RIO User Manual, available at ni.com/manuals, for information about fuse replacement.
Back to Top
15/17
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Pinouts/Front Panel Connections
NI 781xR Connector Pin Assignments and Locations
16/17
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NI 783xR/784xR/785xR Connector Pin Assignments and Locations
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