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  1. Home
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  4. Electronic Test Instruments
  5. Oscilloscopes and Digitizers

Oscilloscopes and Digitizers

NI oscilloscopes and digitizers are precision modular instruments for capturing and analyzing electrical signals in automated test and high-channel-count systems. Oscilloscopes provide interactive, real-time visualization and measurement, ideal for debugging and design validation, while digitizers deliver high-speed, deep-memory data acquisition for advanced analysis and long-duration recording through software control with fully user-programmable FPGA.

View oscilloscopes and digitizers
Combination of NI PXI oscilloscope and digitizer test instruments.

What Oscilloscope or Digitizer Is Right for You?

Shop by Form Factor

PXI/PXI Express

PXI System Components

An NI Partner is a business entity independent from NI and has no agency or joint-venture relationship and does not form part of any business associations with NI. 

Combination of NI PXI high-density oscilloscopes shown together as test instruments

High-Density PXI Oscilloscopes

PXI and PCI general-purpose oscilloscopes offer scalable multichannel data capture in a compact, highdensity modular design, well suited for automated test systems with space and channel needs. General-purpose PXI/PCI oscilloscopes deliver scalable multichannel acquisition in a high-density and compact modular format, ideal for automated test systems with demanding space and channel count demands.


Features

  • Up to 1.5 GHz
  • Up to 5 GS/s
  • Up to 24-bit resolution
  • Up to 8 channels
  • Compact PXI/PCI form factor
Shop high-density PXI oscilloscopes
NI PXIe-5160 oscilloscope with NI CableSense technology test instrument

Downtime Prevention PXI Oscilloscopes

General-purpose PXI oscilloscopes with downtime prevention use NI CableSense™ technology to detect connection issues, reducing downtime and enhancing reliability in automated systems.


Features

  • Up to 1.5 GHz
  • Up to 5 GS/s
  • Up to 10-bit resolution
  • Up to 4 channels
  • Compact PXI form factor
Shop downtime prevention PXI oscilloscopes
NI PXIe-5170R oscilloscope with reconfigurable FPGA

High-Speed Real-Time Processing with Configurable FPGA PXI Oscilloscope

PXI oscilloscopes with programmable FPGAs combine standard functions with realtime processing and custom analysis, enabling users to apply advanced algorithms and adapt to evolving test needs.


Features

  • Up to 400 MHz
  • Up to 1 GS/s
  • Up to 14-bit resolution
  • Up to 8 channels
  • Compact PXI form factor
Shop high-speed PXI oscilloscopes
NI FlexRIO PXI digitizer and FlexRIO adapter displayed together

High-Speed, Customizable PXI Digitizers

PXI FlexRIO digitizers offer high-speed, high-resolution data acquisition with fully user-programmable FPGA, enabling custom signal processing and integration for advanced, specialized test systems.


Features

  • Up to 6 GHz
  • Up to 6.4 GS/s
  • Up to 16-bit resolution
  • Up to 4 channels
  • Compact PXI/PCI form factor
Shop PXI FlexRIO digitizers
NI USB oscilloscope test instrument

Stand-Alone Oscilloscope

Stand-alone oscilloscopes offer USB-connected operation, which is ideal for benchtop use or portable testing on production floors, enabling flexible, on-the-spot measurements at multiple stations.


Features

  • Up to 50 MHz
  • Up to 100 MS/s
  • Up to 8-bit resolution
  • Up to 2 channels
  • Compact USB form factor
Shop stand-alone oscilloscopes
PCI/PCI Express
USB

Explore Related Categories

Oscilloscope Probes
FlexRIO Modules
Vector Signal Transceivers
Switches
PXI Chassis
PXI Controllers

Featured Product

Combination of NI PXI oscilloscope and digitizer test instruments

PXI Oscilloscopes

NI PXI Oscilloscopes are flexible, modular, software‐defined instruments designed for both time‐ and frequency‐domain measurements. They feature advanced triggering modes, deep onboard memory, and a driver software API with data streaming and signal analysis functions.


  • Up to 500 MHz bandwidth
  • Up to 5 GS/s
    Up to 24-bit resolution
Learn more about PXI Oscilloscopes
Image of PXIe-1088 in a lab

Break Through Your Next Engineering Challenge with PXI

As electronics grow more complex and testing deadlines tighten, traditional instruments only slow you down. Flexible, scalable, and software-driven NI PXI systems can help you break free from rigid, stand-alone boxes that limit your ability to scale, synchronize, and adapt.
Download ebook

Oscilloscope Fundamentals

Key Concepts

Specifications Explained: NI Oscilloscopes and Digitizers
Analog Sample Quality: Accuracy, Sensitivity, Precision, and Noise

Selection Guides

How to Choose an Oscilloscope: 10 Tips to Help You Decide
3 Hidden Oscilloscope Specs That Really Matter
Have You Considered a Modular Oscilloscope in Your Test System?
Select the Right Oscilloscope Probe for Your Application

Benefits of Deep Memory in High-Speed Digitizers

Advantages of NI Oscilloscopes
Synchronized Multi-Instrument Sessions
Get Better Measurements Faster Using Oscilloscopes With User-Programmable FPGAs
Benefits of Deep Memory in High-Speed Digitizers

Benefits of NI Oscilloscopes


NI Software for Oscilloscopes and Digitizers

Selecting Oscilloscope and Digitizer Software


NI oscilloscopes offer an integrated interface with built-in controls, visualization, analysis, and workflows, while digitizers emphasize programmatic control, streaming, and integration with automated tests.

NI InstrumentStudio™ Software

NI InstrumentStudio provides an integrated approach to interactive PXI measurements.

NI LabVIEW

NI LabVIEW is a graphical programming environment that provides unique productivity accelerators for test system development, such as an intuitive approach to programming, connectivity to any instrument, and fully integrated user interfaces.

NI LabVIEW FPGA Module

The LabVIEW FPGA Module helps you develop and debug custom hardware logic that you can compile and deploy to NI FPGA hardware.

NI LabVIEW Real-Time Module

The LabVIEW Real-Time Module helps you create reliable, stand-alone applications that execute on embedded hardware devices.


Oscilloscope Resources

Driver icon

Download NI-SCOPE

Download the driver for the PXI oscilloscope or oscilloscope device
Driver icon

Download NI FlexRIO Driver

Download the driver for FlexRIO-based digitizer hardware
InstrumentStudio icon

Download NI InstrumentStudio for free

Download InstrumentStudio

Triggering Tips

Oscilloscope Measurements

Group of partners working together in a lab

Get Help from an NI Partner

The NI Partner Program offers domain, application, and overall test development expertise to help your team get ahead and stay ahead. Connect with our global community of trusted NI Partners ready to give your business a competitive edge.
Find a partner

Frequently Asked Questions About Oscilloscopes and Digitizers

  • Oscilloscopes measure and display signal voltage over time, enabling engineers to observe waveform behavior, verify signal integrity, analyze timing relationships, and troubleshoot electrical issues. They are essential tools for validating the performance of electronic components, detecting anomalies such as noise or distortion, and ensuring compliance with design specifications.

  • Digitizers and oscilloscopes both convert analog signals to digital data, but their roles and features differ: Digitizers focus on high-speed, high-resolution data acquisition, often with deeper memory and software integration for automated test systems. Digitizers are ideal for capturing long-duration signals and processing data offline or in custom software environments such as LabVIEW. 

  • Modern software-defined oscilloscopes and digitizers can be evaluated across many parameters, including bandwidth, sampling rate, sampling modes, resolution and dynamic range, triggering, onboard memory, channel density, multiple instrument synchronization abilities, mixed signal capability, software, analysis options, and customizability. Understanding what will be tested and measured is critical to finding the right oscilloscope or digitizer.

  • NI PXI-based oscilloscopes and digitizers are modular instruments, making it easy to add them to existing test system architectures for applications requiring a high-channel count. Fast data transfer speeds, tight synchronization, integration with NI software such as LabVIEW, and robust support and technical resources are advantages of including NI oscilloscopes and digitizers within automated test systems. 

Overview of PXI
NI PXI Timing and Synchronization Design Advantages
LabVIEW icon

Download a free trial of LabVIEW

Download LabVIEW
Every Measurement Starts with a Trigger
Customize the Triggers on Your Oscilloscope
Using a Digitizer for Time-Domain Measurements
Differential Measurements Using High-Speed Digitizers
Taking Measurements with Oscilloscopes Course

NI-SCOPE Programming

NI-SCOPE .NET Resources
Python Resources for NI Hardware and Software
NI-SCOPE User Manual