I. Basic Information

Model: PCI-4474

Brand: National Instruments NI

Part Number: 779312-01

Product Type: 4-channel Dynamic Signal Acquisition Card DSA

Bus: PCI 32-bit

Channel Count: 4 analog inputs

Resolution: 24-bit DeltaSigma ADC

Maximum Sampling Rate: 102400 samples per second

Dynamic Range: 110 decibels

Product Status: Out of Production

Alternative Models: PXIe-4474, USB-4474

Features: 4-channel synchronous IEPE 2mA vibration acoustic dedicated

II. Application Scenarios

Vibration Testing, Noise Measurement, Microphone

Modal Analysis, Structural Health Monitoring, NVH

IEPE Acceleration Sensor, Industrial Equipment Diagnosis

High Precision Frequency Domain Measurement in Laboratory

III. Analog Input

Channel Configuration: 4 channels of fully differential synchronous input

Sampling Resolution: 24 bits

Maximum Sampling Rate: 102400 samples per channel per second

Analog Bandwidth: DC to 45 kHz

Dynamic Range: 110 dB

Total Harmonic Distortion: -105 dB

Input Coupling: Programmable AC/DC for each channel at 3.4Hz high pass

IEPE Constant Current Power Supply: Each channel selectable 0mA to 2mA

Input Range: ±1V, ±2V, ±5V, ±10V (4 levels)

Input Impedance: 1MΩ (parallel), 240pF

Anti-aliasing Filter: Built-in programmable high-order filter

TEDS Support for Sensor Electronic Data Sheet

IV. Analog Output

No Analog Output Channel

V. Trigger and Synchronization

Trigger Interface: 1 channel of SMB external trigger

Synchronization Bus: Supports RTSI multi-card synchronization

Clock Source: Internal clock or external SMB clock

VI. Physical and Electrical Specifications

Card Specifications: Standard PCI Half-Length Card

Interface Panel: 4 channels of BNC input, 1 channel of SMB trigger

Power Supply: PCI slot power supply +3.3V, +5V

Operating Temperature: 0 to 55 degrees Celsius

Operating Humidity: 10% to 90% without condensation

Weight: Approximately 200 grams

VII. Software Compatibility

Driver: NI-DAQmx

Development Environment: LabVIEW, C#, C++, Visual Studio

Operating System: Windows XP, 7, 10, 11 (32/64-bit)

Supporting Tools: Sound and Vibration Toolkit, Spectrum Analysis

VIII. Core Features

4 channels, 24-bit synchronous acquisition, high precision, low noise

Integrated 2mA IEPE for direct support of accelerometers and microphones

4 ranges, covering common signal ranges

Built-in automatic anti-aliasing filter, simplifying front-end design

RTSI multi-card synchronization, easy to expand channel count

BNC interface plug-and-play, suitable for precise acoustic vibration measurement