NI PCI-5421 Signal Acquisition Card Signal Generator

Input Voltage	5 V DC (from PCI bus)
Operating Temp	0°C to 55°C
Communication Method	PCI bus for data transfer; supports synchronization via trigger I/O

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Description

NI PCI-5421 Signal Acquisition Card Signal Generator

PCI-5421

As a core component in automated test systems, the NI PCI-5421 serves as the backbone for generating arbitrary waveforms, standard function signals, and modulated outputs. Its versatility makes it ideal for industries requiring precise signal simulation, such as aerospace, defense, telecommunications, and electronics manufacturing. Whether emulating real-world signals for system validation or creating custom waveforms for algorithm testing, this module delivers the accuracy and flexibility needed to drive innovation in industrial automation and control.

Label	Specification
Model Number	PCI-5421
Brand	National Instruments (NI)
Type	High-Performance Arbitrary Waveform Generator (AWG)
Input Voltage	5 V DC (from PCI bus)
Operating Temp	0°C to 55°C
Communication Method	PCI bus for data transfer; supports synchronization via trigger I/O
Mounting	Standard PCI form factor for desktop or rack-mounted computers
Weight	14.8 oz (420 g)
Certifications	CE, FCC
Dimensions	13.4 × 4.20 × 0.8 in (340 × 107 × 20 mm)
IP Rating	N/A (indoor use, panel-mounted)
Protocols Supported	NI-FGEN driver API, compatible with LabVIEW, C, C++, Python
Key Specs	100 MS/s maximum sampling rate, 16-bit resolution, 43 MHz bandwidth, up to 256 MB waveform memory

PCI-5421

The NI PCI-5421 distinguishes itself through its advanced direct digital synthesis (DDS) technology, which ensures minimal phase noise and exceptional frequency stability. This unit has been engineered to deliver up to 100 million samples per second (MS/s) with 16-bit resolution, enabling engineers to generate highly detailed waveforms with 91 dBc spurious-free dynamic range (SFDR). The module’s 43 MHz analog bandwidth further enhances its capability to reproduce complex signals, from sine waves to modulated carriers, with remarkable fidelity.

PCI-5421

Operators benefit from the NI PCI-5421’s Sync and Memory Core (SMC) architecture, which integrates waveform data and sequencing instructions in a shared memory space. This design allows for seamless creation of complex waveform sequences, supporting up to 256 MB of memory to store over a million unique waveforms. The module also features the ability to stream data in real time, reducing latency and enabling continuous, high-speed signal generation—critical for testing high-throughput communication systems.