NIPXI7851R [NI]
Integrated Analog and Digital I/O with FPGA Technology;
| 型号： | NIPXI7851R |
| 厂家： | 
National Instruments |
| 描述： | Integrated Analog and Digital I/O with FPGA Technology |
| 文件： | 总17页 (文件大小：377K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Technical Sales
United States
(866) 531-6285
info@ni.com
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
Up to 160 digital lines configurable as inputs, outputs, counters, or custom logic at
rates up to 40 MHz
User-defined triggering, timing, and decision making in hardware with 25 ns resolution
Up to 8 analog inputs, independent sampling rates up to 750 kHz, 16-bit resolution
Up to 8 analog outputs, independent update rates up to 1 MHz, 16-bit resolution
Direct memory access (DMA) channels for high-speed data streaming
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
Software Compatibility
Windows 2000/XP
NI-RIO
LabVIEW FPGA Module
Windows Vista x64/x86
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Comparison Tables
Bus/Form
Factor
Analog Inputs
(16-bit)
Max Sampling Rate per
Channel (kS/s)
Analog Outputs
(16-bit)
Max Update Rate per
Channel (MS/s)
Digital
I/O
Product
FPGA
Multifunction R
Series
PCI Express,
PCI
Virtex-5
NI 7851R
NI 7852R
NI 7853R
NI 7854R
8
8
8
8
750
8
8
8
8
1
1
1
1
96
96
96
96
LX30
PCI Express,
PXI
Virtex-5
LX50
750
750
750
Virtex-5
LX85
PXI
PXI
Virtex-5
LX110
1/17
www.ni.com
Bus/Form
Factor
Analog Inputs
(16-bit)
Max Sampling Rate per
Channel (kS/s)
Analog Outputs
(16-bit)
Max Update Rate per
Channel (MS/s)
Digital
I/O
Product
FPGA
PCI Express,
PXI
Virtex-5
NI 7841R
NI 7842R
NI 7830R
NI 7831R
8
8
4
8
8
200
8
1
1
1
1
1
96
96
56
96
96
LX30
PCI Express,
PXI
Virtex-5
LX50
200
200
200
200
8
4
8
8
Virtex-II 1M
Gates
PCI, PXI
PCI, PXI
PCI, PXI
Virtex-II 1M
Gates
Virtex-II 3M
Gates
NI 7833R
Digital R Series
NI 7811R
Virtex-II 1M
Gates
PCI, PXI
PCI, PXI
-
-
-
-
-
-
-
-
160
160
Virtex-II 3M
Gates
NI 7813R
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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.
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
1 m ............................................................................................189588-01
2 m ............................................................................................189588-02
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.
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 ............................................................................................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 ............................................................................................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.
1 m ............................................................................................189152-01
Dimensions - 19.5 by 15.2 by 4.5 cm (7.7 by 6.0 by 1.8 in.)
SCB-68 ........................................................................................776844-01
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
3/17
www.ni.com
Requires: 1 Cables , 1 Connector Blocks ;
Connector 0:
Cables: Shielded - SHC68-68-RDIO Cable (1m)
191667-01
782536-01
**Also Available: [Unshielded]
Connector Blocks: Spring-Screw_Terminals - SCB-68A
Connector 1:
Cables: Shielded - SHC68-68-RDIO Cable (1m)
191667-01
782536-01
**Also Available: [Unshielded]
Connector Blocks: Spring-Screw_Terminals - SCB-68A
Connector 2:
Cables: -
**Also Available: [Unshielded]
Connector Blocks: -
Connector 3:
Cables: -
**Also Available: [Unshielded]
Connector Blocks: -
NI PXI-7813R
NI PXI-7813R
779362-01
Connector 0:
Requires: 1 Cables , 1 Connector Blocks ;
Cables: Shielded - SHC68-68-RDIO Cable (1m)
191667-01
782536-01
**Also Available: [Unshielded]
Connector Blocks: Spring-Screw_Terminals - SCB-68A
Connector 1:
Cables: Shielded - SHC68-68-RDIO Cable (1m)
191667-01
782536-01
**Also Available: [Unshielded]
Connector Blocks: Spring-Screw_Terminals - SCB-68A
Connector 2:
Cables: -
**Also Available: [Unshielded]
Connector Blocks: -
Connector 3:
Cables: -
**Also Available: [Unshielded]
Connector Blocks: -
NI PCI-7830R
NI PCI-7830R
779361-01
779364-01
778797-01
Connector 0:
Requires: 2 Cable , 2 Connector Block ;
Cable: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Block: Spring-Screw_Terminals - SCB-68A
Connector 1:
Cable: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Block: Spring-Screw_Terminals - SCB-68A
NI PXI-7830R
NI PXI-7830R
Connector 0:
Requires: 1 Cable , 1 Connector Block ;
Cable: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Block: Spring-Screw_Terminals - SCB-68A
Connector 1:
Cable: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Block: Spring-Screw_Terminals - SCB-68A
NI PCI-7831R
NI PCI-7831R
Connector 0:
Requires: 3 Cables , 3 Connector Block ;
Cables: Shielded - SHC68-68-RMIO Cable (2m)
Connector Block: Spring-Screw_Terminals - SCB-68A
Connector 1:
189588-02
782536-01
4/17
www.ni.com
Cables: Shielded - SHC68-68-RMIO Cable (2m)
Connector Block: Spring-Screw_Terminals - SCB-68A
Connector 2:
189588-02
782536-01
Cables: Shielded - SHC68-68-RMIO Cable (2m)
Connector Block: Spring-Screw_Terminals - SCB-68A
189588-02
782536-01
NI PXI-7831R
NI PXI-7831R
778668-01
779359-01
779360-01
780337-01
Connector 0:
Requires: 1 Cables , 1 Connector Block ;
Cables: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Block: Spring-Screw_Terminals - SCB-68A
Connector 1:
Cables: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Block: Spring-Screw_Terminals - SCB-68A
Connector 2:
Cables: -
**Also Available: [Unshielded]
Connector Block: -
NI PCI-7833R
NI PCI-7833R
Connector 0:
Requires: 3 Cables , 3 Connector Blocks ;
Cables: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Blocks: Spring-Screw_Terminals - SCB-68A
Connector 1:
Cables: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Blocks: Spring-Screw_Terminals - SCB-68A
Connector 2:
Cables: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Blocks: Spring-Screw_Terminals - SCB-68A
NI PXI-7833R
NI PXI-7833R
Connector 0:
Requires: 1 Cables , 1 Connector Blocks ;
Cables: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Blocks: Spring-Screw_Terminals - SCB-68A
Connector 1:
Cables: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Blocks: Spring-Screw_Terminals - SCB-68A
Connector 2:
Cables: -
**Also Available: [Unshielded]
Connector Blocks: -
NI PXI-7841R
NI PXI-7841R
Connector 0:
Requires: 1 Cable , 1 Connector Block ;
Cable: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Block: Spring-Screw_Terminals - SCB-68A
Connector 1:
Cable: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Block: Spring-Screw_Terminals - SCB-68A
Connector 2:
Cable: -
**Also Available: [Unshielded]
5/17
www.ni.com
Connector Block: -
NI PXI-7842R
NI PXI-7842R
780338-01
780339-01
780340-01
780341-01
780342-01
Connector 0:
Requires: 1 Cable , 1 Connector Block ;
Cable: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Block: Spring-Screw_Terminals - SCB-68A
Connector 1:
Cable: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Block: Spring-Screw_Terminals - SCB-68A
Connector 2:
Cable: -
**Also Available: [Unshielded]
Connector Block: -
NI PXI-7851R
NI PXI-7851R
Connector 0:
Requires: 1 Cable , 1 Connector Block ;
Cable: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Block: Spring-Screw_Terminals - SCB-68A
Connector 1:
Cable: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Block: Spring-Screw_Terminals - SCB-68A
Connector 2:
Cable: -
**Also Available: [Unshielded]
Connector Block: -
NI PXI-7852R
NI PXI-7852R
Connector 0:
Requires: 1 Cable , 1 Connector Block ;
Cable: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Block: Spring-Screw_Terminals - SCB-68A
Connector 1:
Cable: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Block: Spring-Screw_Terminals - SCB-68A
Connector 2:
Cable: -
**Also Available: [Unshielded]
Connector Block: -
NI PXI-7853R
NI PXI-7853R
Connector 0:
Requires: 1 Cables , 1 Connector Block ;
Cables: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Block: Spring-Screw_Terminals - SCB-68A
Connector 1:
Cables: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Block: Spring-Screw_Terminals - SCB-68A
Connector 2:
Cables: -
**Also Available: [Unshielded]
Connector Block: -
NI PXI-7854R
NI PXI-7854R
Connector 0:
Requires: 1 Cables , 1 Connector Block ;
6/17
www.ni.com
Cables: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Block: Spring-Screw_Terminals - SCB-68A
Connector 1:
Cables: Shielded - SHC68-68-RMIO Cable (2m)
189588-02
782536-01
**Also Available: [Unshielded]
Connector Block: Spring-Screw_Terminals - SCB-68A
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.
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Detailed Specifications
This document lists the specifications of the NI 781xR/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
Input modes
8
DIFF, RSE, NRSE (software-selectable; selection applies to all channels)
Successive approximation
Type of ADC
Resolution
16 bits, 1 in 65,536
Conversion time
NI 783xR/NI 784xR
NI 785xR
4 μs
1 μs
Maximum sampling rate
NI 783xR/784xR
200 kS/s (per channel)
750 kS/s (per channel)
NI 785xR
Input impedance
Powered on
10 GΩ in parallel with 100 pF
Powered off/overload
Input signal range
Input bias current
NI 783xR
4.0 kΩ min
±10 V
±2 nA
±5 nA
NI 784xR/785xR
Input offset current
NI 783xR
±1 nA
NI 784xR/785xR
±5 nA
Input coupling
DC
Maximum working voltage (signal + common mode)
Overvoltage protection
Powered on
Inputs should remain within ±12 V of ground
±42 V
±35 V
Powered off
Accuracy Information
8/17
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NI 783xR
Nominal Range (V)
Absolute Accuracy
Relative Accuracy
% of Reading
Offset (μ Noise + Quantization ( Temp Drift (%/ Absolute Accuracy at Full Scale
Resolution (μV)
V)
μV)
°C)
(±mV)
Positive Full
Scale
Negative Full
Scale
24
1 Year
Single
Point
Averaged
Single
Point
Averaged
Hours
10.0
–10.0
0.0496
0.0507 2,542
1,779
165
0.0005
7.78
2,170
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
Relative Accuracy
% of Reading
Offset (μ Noise + Quantization ( Temp Drift (%/ Absolute Accuracy at Full Scale
Resolution (μV)
V)
μV)
°C)
(±mV)
Positive Full
Scale
Negative Full
Scale
24
1 Year
Single
Point
Averaged
Single
Point
Averaged
Hours
10.0
–10.0
0.0186
0.0228 1,591
1,029
91.6
0.0005
3.97
1,205
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
±1 LSB typ, ±3 LSB max
NI 784xR/785xR
DNL
NI 783xR
±1.0 to ±2.0 LSB max
NI 784xR/785xR
No missing codes
NI 783xR
±0.4 LSB typ, ±0.9 LSB max
16 bits typ, 15 bits min
16 bits guaranteed
–86 dB
NI 784xR/785xR
CMRR, DC to 60 Hz
Dynamic Characteristics
Bandwidth
NI 783xR
Small signal (– 3 dB)
Large signal (1% of THD)
NI 784xR/NI 785xR
Small signal (– 3 dB)
650 kHz
55 kHz
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
±2.0 V
±0.2 V
7.5 μs
2.7 μs
1.7 μs
2.1 μs
10.3 μs 40 μs
4.1 μs 5.1 μs
2.9 μs 3.6 μs
4.2 μs 8 μs
NI 784xR/ 785xR ±20.0 V
9/17
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Device
Step Size
Accuracy
±16 LSB ±4 LSB ±2 LSB
±2.0 V
±0.2 V
1.3 μs
0.8 μs
1.6 μs 1.8 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
1.0 μs
Update time
Maximum update rate
1 MS/s
Type of DAC
Enhanced R-2R
Accuracy Information
Nominal Range (V)
Absolute Accuracy
Absolute Accuracy at Full Scale (±mV)
% of Reading
Offset (μV)
Temp Drift (%/ °C)
Positive Full Scale
10.0
Negative Full Scale
–10.0
24 Hours
0.0335
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
±0.5 LSB typ, ±1 LSB max
16 bits, guaranteed
DNL
Monotonicity
Voltage Output
Range
±10 V
DC
Output coupling
Output impedance
NI 783xR
1.25 Ω
NI 784xR/785xR
Current drive
Protection
0.5 Ω
±2.5 mA
Short-circuit to ground
User configurable
Power-on state
Dynamic Characteristics
Settling time
Accuracy
±16 LSB ±4 LSB ±2 LSB
Step Size
±20.0 V
±2.0 V
±0.2 V
6.0 μs
2.2 μs
1.5 μs
6.2 μs 7.2 μs
2.9 μs 3.8 μs
2.6 μs 3.6 μs
10/17
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Slew rate
10 V/μs
150 μV , DC to 1 MHz
rms
Noise
Glitch energy at midscale transition
±200 mV for 3 μs
Digital I/O
Number of channels
NI 781xR
160
56
NI 7830R
NI 7831R/7833R/7841R/7842R/7851R/7852R/7853R/7854R
Compatibility
96
TTL
Digital logic levels
Level
Min Max
Input low voltage (V
)
0.0 V 0.8 V
2.0 V 5.5 V
IL
Input high voltage (V
)
IH
Output low voltage (V ), where I
= –4 mA 0 V
0.4 V
2.4 V 3.3 V
OL
OUT
Output high voltage (V
), where I
= 4 mA
OUT
OH
Output current
Source
4.0 mA
4.0 mA
±10 μA
Sink
Input leakage current
Power-on state
Protection
Programmable, by line
Input
NI 781xR/783xR
NI 784xR/785xR
Output
–0.5 to 7.0 V, single line
–20.0 to 20.0 V, single line
Short-circuit (up to eight lines may be shorted at a time)
Minimum pulse width
Input
25 ns
12.5 ns
5 ns
Output
Minimum sampling period
Reconfigurable FPGA
NI 7811R/7830R/7831R
FPGA type
Virtex-II V1000
10,240
Number of flip-flops
Number of 4-input LUTs
Number of 18 × 18 multipliers
Embedded block RAM
NI 7813R/7833R
10,240
40
720 kbits
FPGA type
Virtex-II V3000
28,672
Number of flip-flops
Number of 4-input LUTs
Number of 18 × 18 multipliers
28,672
96
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Embedded block RAM
NI 7841R/7851R
1,728 kbits
FPGA type
Virtex-5 LX30
19,200
Number of flip-flops
Number of 6-input LUTs
Number of DSP48 slices (25 × 18 multipliers)
Embedded block RAM
NI 7842R/7852R
19,200
32
1,152 kbits
FPGA type
Virtex-5 LX50
28,800
Number of flip-flops
Number of 6-input LUTs
Number of DSP48 slices (25 × 18 multipliers)
Embedded block RAM
NI 7853R
28,800
48
1,728 kbits
FPGA type
Virtex-5 LX85
51,840
Number of flip-flops
Number of 6-input LUTs
Number of DSP48 slices (25 × 18 multipliers)
Embedded block RAM
NI 7854R
51,840
48
3,456 kbits
FPGA type
Virtex-5 LX110
Number of flip-flops
Number of 6-input LUTs
Number of DSP48 slices (25 × 18 multipliers)
Embedded block RAM
Timebase
69,120
69,120
64
4,608 kbits
40, 80, 120, 160, or 200 MHz
Timebase reference sources
NI PCI-781xR/783xR
NI PCIe-784xR/785xR
NI PXI-78xxR
Onboard clock only
Onboard clock only
Onboard clock, phase-locked to PXI 10 MHz clock
±100 ppm, 250 ps peak-to-peak jitter
Adds 350 ps peak-to-peak jitter
Timebase accuracy, onboard clock
Phase locked to PXI 10 MHz Clock (NI PXI-78xxR only)
Additional frequency-dependent peak-to-peak jitter
NI 781xR/783xR
40 MHz
None
80 MHz
400 ps
720 ps
710 ps
700 ps
120 MHz
160 MHz
200 MHz
NI 784xR/785xR
40 MHz
None
80 MHz
460 ps
172 ps
172 ps
152 ps
120 MHz
160 MHz
200 MHz
Calibration (NI 783x R/784x R/785x R Only)
12/17
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Recommended warm-up time
Calibration interval
15 minutes
1 year
Onboard calibration reference
DC level
5.000 V (±3.5 mV) (actual value stored in Flash memory)
±5 ppm/°C max
Temperature coefficient
Long-term stability
±20 ppm/
Note Refer to Calibration Certificates at ni.com/calibration to generate a calibration certificate for the NI 78xxR.
Bus Interface
PCI/PCIe/PXI
Master, slave
Data transfers
DMA, interrupts, programmed I/O
3
Number of DMA channels
Power Requirement
1
+5 VDC (±5%)
NI 781xR
9 mA typ
NI 7830R/7831R
NI 7833R
330 mA typ
364 mA typ
125 mA typ
136 mA typ
460 mA typ
484 mA typ
NI PXI-7841R/7851R
NI PXI-7842R/7852R
NI 7853R
NI 7854R
2
+3.3 VDC (±5%)
NI 7811R
650 mA typ
850 mA typ
462 mA typ
727 mA typ
847 mA typ
984 mA typ
525 mA typ
604 mA typ
640 mA typ
843 mA typ
NI 7813R
NI 7830R/7831R
NI 7833R
NI PCIe-7841R/7851R
NI PCIe-7842R/7852R
NI PXI-7841R/7851R
NI PXI-7842R/7852R
NI 7853R
NI 7854R
+12 V
NI 784xR/785xR
0.5 A
–12 V
NI PXI-784xR/785xR
0.25 A
+5V terminal
3
Connector 0
0.5 A max
3
Connector 1
0.5 A max3
3
Connector 2
0.5 A max3
3 ,
4
All connectors
1.5 A max3
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
13/17
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Physical
Dimensions (not including connectors)
NI PCI-781xR/783xR
NI PCIe-784xR/785xR
NI PXI-78xxR
17 cm by 11 cm (6.7 in. by 4.3 in.)
17 cm by 11 cm (6.7 in. by 4.3 in.)
16 cm by 10 cm (6.3 in. by 3.9 in.)
Weight
NI PCI-781xR/783xR
NI PCIe-784xR/785xR
NI PXI-78xxR
112 g
127 g
152 g
I/O connectors
NI 781xR
Four 68-pin female high-density VHDCI type
Two 68-pin female high-density VHDCI type
Three 68-pin female high-density VHDCI type
Standard ATX peripheral connector (not serial ATA)
NI 7830R
NI 783xR/784xR/785xR
Disk drive power connector (PCIe devices)
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
±24 V, Measurement Category I
Channel-to-channel
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.
0 °C to 55 °C, tested in accordance with IEC-60068-2-1 and IEC-60068-2-2.
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
NI PCI/PXI-7833R
40 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.
80 MHz timebase
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.
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.
80 MHz timebase
NI PCIe-7841R/7842R/7851R/7852R
40 MHz or 80 MHz timebase
Relative humidity range
0 °C to 40 °C, tested in accordance with IEC-60068-2-1 and IEC-60068-2-2.
10% to 90%, noncondensing, tested in accordance with IEC-60068-2-56.
2,000 m at 25 °C ambient temperature
Altitude
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.
–20 °C to 70 °C, tested in accordance with IEC-60068-2-1 and IEC-60068-2-2.
–40 °C to 70 °C, tested in accordance with IEC-60068-2-1 and IEC-60068-2-2.
–20 °C to 70 °C, tested in accordance with IEC-60068-2-1 and IEC-60068-2-2.
5% to 95%, noncondensing, tested in accordance with IEC-60068-2-56.
NI PCIe-784xR/785xR
NI PXI-784xR/785xR
Ambient temperature range
Relative humidity range
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-78xxR Only)
30 g peak, half-sine, 11 ms pulse; tested in accordance with IEC-60068-2-27.
Operational shock
Test profile developed in accordance with MIL-PRF-28800F.
14/17
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Random vibration
Operating
5 Hz to 500 Hz, 0.3 g
rms
5 Hz to 500 Hz, 2.4 g , tested in accordance with IEC-60068-2-64.
rms
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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