National Instruments USB-7855 Multifunction reconfigurable I/O device

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National Instruments · USB R Series

USB-7855

Name: USB-7855
Brand: National Instruments

The NI USB-7855 is a USB R Series multifunction reconfigurable I/O device built around a Kintex-7 70T FPGA. It combines analog input, analog output and digital I/O.

ManufacturerNational Instruments

ModelUSB-7855

Part Number782915-02

Product TypeMultifunction reconfigurable I/O device

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FPGAKintex-7 70T

Analog input8 channels, 16-bit

AI samplingUp to 1 MS/s per channel

Analog output8 channels, 16-bit

Digital I/O48 lines across two connectors

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Overview

Product overview

Key product information and technical features.

The USB-7855 belongs to NI's FPGA-based R Series platform. R Series hardware can be programmed with the LabVIEW FPGA Module to define custom measurement hardware circuitry.

NI provides separate documentation for the OEM version. Confirm the physical variant before selecting mechanical drawings or integration instructions.

Software-selectable analog input ranges.
Supports differential, referenced single-ended and non-referenced single-ended analog input connections.
Digital ports can be accessed using an FPGA I/O Node configured for reading and writing.

Verified specifications

Technical data

Verified product specifications.

USB compatibility	USB 2.0 Hi-Speed or Full-Speed
FPGA	Kintex-7 70T
Analog input channels	8 channels
Analog input resolution	16 bits
Maximum AI sampling rate per channel	1 MS/s
Analog input ranges	±1, ±2, ±5, ±10 V
Analog output channels	8 channels
Analog output resolution	16 bits
Analog output range	±10 V
Digital I/O lines	48 lines
Maximum digital frequency	Connector 0: 80 MHz; connector 1: 10 MHz
Digital logic families	1.2, 1.5, 1.8, 2.5, 3.3 V

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Compatibility

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National Instruments

Manufacturer

USB R Series

FPGA-based multifunction I/O platform

USB-7855

Multifunction reconfigurable I/O device

Programming ecosystem

LabVIEW FPGA Module for R Series FPGA programming

Confirm OEM versus enclosed hardware and the connector function before selecting accessories.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI USB-7855R SpecificationsSpecifications · ni.com

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USB-7855 Dimensional DrawingsMechanical Drawings And CAD · ni.com

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NI USB-7855R OEM User Manual — OEM variant onlyUser Manual · download.ni.com

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USB-7855 Digital Port AssignmentsTechnical resource

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NI 78xx R Series Cable and Accessory CompatibilityTechnical resource

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Shipping, warranty & returns

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Alternatives & system components

FAQ

Product-specific questions

Product-specific answers based on available technical information.

How are the USB-7855 digital lines assigned?

Connector 0 contains four eight-line ports, while connector 1 contains two eight-line ports, giving 48 digital lines in total.

Which cables does NI list for the USB-7855?

NI lists SHC68-68-RMIO for multifunction I/O and SHC68-C68-RDIO2 for digital I/O. Select the cable according to the connector function.

Is 782915-02 associated with the USB-7855?

Yes. NI's USB-7855 drawing page lists 782915-02 alongside 782915-01. Confirm the actual item's label and mechanical configuration before choosing a drawing.