National Instruments PCIe-7851 Multifunction Reconfigurable I/O Device

1 image: Click to enlarge

National Instruments · PCI Express

PCIe-7851

Name: PCIe-7851
Brand: National Instruments

The NI PCIe-7851 is a PCI Express multifunction reconfigurable I/O device with a user-programmable Virtex-5 LX30 FPGA. It provides 8 analog inputs, 8 analog outputs, and 96 bidirectional digital lines, with analog input sampling up to 750 kS/s per channel.

ManufacturerNational Instruments

ModelPCIe-7851

Part Number781102-01

Product TypeMultifunction Reconfigurable I/O Device

● Available to Order

Condition: confirmed per unit

Request current pricing and lead time for this model. Our team will confirm the exact equipment configuration and condition.

Fast RFQ

Quote: PCIe-7851

Free Shippingfull policy linked

30-Day Warrantystandard coverage

30-Day Returnspolicy applies

Technical Supportmodel & compatibility help

Host interfacePCI Express

FPGAVirtex-5 LX30

Analog inputs8 channels, 16-bit, ±10 V

Maximum input sampling750 kS/s per channel

Analog outputs8 independent, 16-bit channels

Digital I/O96 individually configurable bidirectional lines

SOHO Assistant

Ask about this exact model, a replacement, accessory, driver, rental or repair question.

Ask about specifications, compatibility, availability, rental or repair.

Ask SOHO Assistant

Overview

Product overview

Key product information and technical features.

The PCIe-7851 places analog and digital I/O under FPGA control, allowing application-specific timing and onboard logic rather than a fixed acquisition sequence. Its dedicated A/D converter per input channel supports independent timing, individual channel triggering, and multirate acquisition.

Custom FPGA functionality is developed with the LabVIEW FPGA Module. The device belongs to NI's R Series multifunction reconfigurable I/O family and combines voltage acquisition, analog generation, and digital signaling on a PCI Express card.

User-programmable Virtex-5 LX30 FPGA for onboard I/O processing and timing.
Dedicated A/D converter per input channel enables independent acquisition timing and triggering.
Analog inputs can be sampled simultaneously or at different rates.
Software-selectable differential, referenced single-ended, or nonreferenced single-ended input modes; the selected mode applies to all input channels.

Verified specifications

Technical data

Verified product specifications.

Bus connection	PCI Express
FPGA	Virtex-5 LX30
Analog input channels	8 channels
Analog input resolution	16 bits
Analog input signal range	-10 to +10 V
Maximum analog input sampling rate	750 per channel kS/s
Analog output channels	8 channels
Analog output resolution	16 bits
Bidirectional digital channels	96 channels
Maximum clock rate listed by NI	40 MHz

Condition & included items

What the actual unit includes

Confirm condition, included accessories and revision before ordering.

Condition

Confirmed per unit.

Included

Device / accessories confirmed in quote.

Revision

Exact revision confirmed when relevant.

Compatibility

Complete the measurement chain

Review system components and compatibility requirements.

National Instruments

Manufacturer

PCI Express

Host interface

R Series PCIe-7851

FPGA-based multifunction I/O device

FPGA development

LabVIEW FPGA Module is used to create custom FPGA VIs.

Use the PCIe-7851-specific cable and terminal-block pinouts; do not select accessories by connector shape alone.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI PCIe-7851 Product InformationOfficial Product Page · ni.com

Open →

Multifunction Reconfigurable I/O SpecificationsSpecifications PDF · docs-be.ni.com

Open →

Multifunction Reconfigurable I/O User ManualUser Manual PDF · docs-be.ni.com

Open →

NI 78xx Models: R Series Cable and Accessory CompatibilityAccessory Guide · ni.com

Open →

R Series Cable Selection and Terminal-Block Pinout GuidanceTechnical resource

Open →

Shipping, warranty & returns

Commercial terms

Review shipping, warranty and return terms before ordering.

Shipping

Free Shipping. Full policy terms apply.

Warranty

30-Day Warranty. Standard coverage applies.

Returns

30-Day Returns. Return policy applies.

Price / Availability

Contact SOHO ProLab for current quote and availability.

Lifecycle services

Source, rent or repair the exact model

Choose pricing, rental or repair for this exact model.

Get Price

Current price, availability and exact unit details.

Rent This Model

Request the exact model or a suitable alternative.

Repair This Model

Send the model and failure symptoms for review.

Alternatives & system components

FAQ

Product-specific questions

Product-specific answers based on available technical information.

Is 750 kS/s shared across the analog inputs?

No. NI specifies a maximum analog input sampling rate of 750 kS/s per channel for the PCIe-7851.

What software is used to customize the FPGA?

The LabVIEW FPGA Module is used to create and download custom FPGA VIs. The user manual distinguishes creating new FPGA VIs from controlling existing FPGA VIs through host software.

Which cables and terminal blocks does NI list for this device?

NI lists SHC68-68-RMIO for the multifunction connection and SHC68-68-RDIO for digital connections, with SCB-68 or SCB-68A terminal blocks. Use the device-specific pinout labels when wiring either terminal block.