Onboard FPGA chip, programmable with the LabVIEW FPGA Module 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	Up to 160 digital lines configurable as inputs, outputs, counters, or custom logic at rates up to 40 MHz 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.

Requirements and Compatibility

OS Information Windows 2000/XP Windows Vista x64/x86

Driver Information NI-RIO

Software Compatibility LabVIEW FPGA Module

Comparison Tables

Product	Bus/Form Factor	FPGA	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
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
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
Digital R Series
NI 7811R	PCI, PXI	Virtex-II 1M Gates	-	-	-	-	160
NI 7813R	PCI, PXI	Virtex-II 3M Gates	-	-	-	-	160

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.

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.

 

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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.

 

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Recommended Accessories

High Performance 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 SHC68-68-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 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

Custom Cabling 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 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

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

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.

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.

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		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

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

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

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

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

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
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)
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 78xxR.
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
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-78xxR Only)
Operational shock		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.
Random vibration
Operating		5 Hz to 500 Hz, 0.3 grms
Nonoperating		5 Hz to 500 Hz, 2.4 grms, tested in accordance with IEC-60068-2-64. 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.

Pinouts/Front Panel Connections

NI 781xR Connector Pin Assignments and Locations

NI 783xR/784xR/785xR Connector Pin Assignments and Locations