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National Instruments · PXI Express

NI PXIe-4468

The NI PXIe-4468 is a PXI Express sound and vibration module designed for high-performance dynamic signal acquisition and generation. NI specifies 2 analog inputs, 2 analog outputs, software-configurable AC/DC coupling, IEPE conditioning, and an integrated pure tone generator for measurement and test applications.

ManufacturerNational Instruments
ModelPXIe-4468
Part Number788511-01 · 788512-01
Product TypePXI Express sound and vibration module
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BusPXI Express
Analog input channels2
Analog output channels2
Maximum sample rate250 kS/s
Maximum analog output update rate200 kS/s
Input couplingAC/DC
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Overview

Product overview

Key product information and technical features.

The NI PXIe-4468 is identified by NI as a “PXIe, 250 kS/s, 2 Input/2 Output PXI Sound and Vibration Module.” It combines 2-channel acquisition with 2-channel dynamic signal generation in a PXI Express form factor, making it suitable for sound and vibration measurement systems that need both input and output capability in one module. NI also lists 6 gain settings and support for software-configurable AC/DC coupling on the official product page.

According to the official NI specifications, the PXIe-4468 provides up to 250 kS/s input sampling and 200 kS/s output update rate. NI documents a 121 dB dynamic range for DSA operation, a 0.8 Hz highpass filter cutoff, and 20 mA IEPE excitation. The product page also lists input ranges of ±0.316 V, ±1 V, ±3.16 V, ±10 V, ±31.6 V, and ±42.4 V, along with a ±10 V output range.

NI states that the PXIe-4468 supports IEPE sensors including accelerometers and microphones. Two orderable variants are listed on the official product page: part number 788511-01 with BNC(4) + SMB(1) connectors and part number 788512-01 with Mini-XLR(4) + SMB(1) connectors. For official reference material, NI provides both the PXIe-4468 User Manual and a dedicated PXIe-4468 Specifications document.

  • PXI Express sound and vibration module with 2 analog inputs and 2 analog outputs.
  • Provides 2-channel acquisition and 2-channel dynamic signal generation.
  • Includes 6 gain settings.
  • Supports software-configurable AC/DC coupling.
  • Includes IEPE conditioning for supported sensors.
  • Includes a pure tone generator.
Verified specifications

Technical data

Verified product specifications.

BusPXI Express
Analog input channels2
Analog output channels2
Maximum sample rate250 kS/s
Maximum analog output update rate200 kS/s
Input couplingAC/DC
Gain settings6
Highpass filter cutoff0.8 Hz
DSA dynamic range121 dB
IEPE excitation20 mA
Supported sensorsIEPE, accelerometer, microphone
Input range±0.316 V
Input range±1 V
Input range±3.16 V
Input range±10 V
Input range±31.6 V
Input range±42.4 V
Output range±10 V
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National Instruments

Manufacturer

PXI Express

Platform

PXIe-4468

PXI Express sound and vibration module

Interface

PXI Express

Model specifications do not establish the offered unit condition, inventory, installed options or included accessories.
Manuals & software

Technical resources

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PXIe-4468 User ManualOfficial Manufacturer Manual · ni.com
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PXIe-4468 SpecificationsOfficial Manufacturer Manual · ni.com
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FAQ

Product-specific questions

Product-specific answers based on available technical information.

What is the NI PXIe-4468?

NI identifies the PXIe-4468 as a “PXIe, 250 kS/s, 2 Input/2 Output PXI Sound and Vibration Module.”

How many input and output channels does the PXIe-4468 provide?

The official NI product page lists 2 analog input channels and 2 analog output channels.

Does the PXIe-4468 support IEPE sensors?

Yes. NI states that the module includes IEPE conditioning and supports IEPE sensors such as accelerometers and microphones.

What are the maximum input and output rates of the PXIe-4468?

NI specifies up to 250 kS/s input sampling and 200 kS/s analog output update rate.

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