Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Model | PCI-5421 |
| Form Factor | PCI (full-length compatible) |
| Resolution | 16-bit |
| Maximum Sample Rate | 100 MS/s |
| Output Channels | 1 |
| Output Amplitude | Up to 12 V pk-pk into 50 Ω |
| Analog Bandwidth | Up to ~43 MHz (sine, –3 dB) |
| Output Impedance | Software-selectable 50 Ω or 75 Ω |
| Onboard Memory | 8 MB standard; options up to 256 MB (or higher) |
| Connectors | SMB (CH 0, CLK IN, PFI 0/1); optional digital pattern connector |
| Driver Support | NI-FGEN |
4. Product Introduction (Anti-Template)
The National Instruments PCI-5421 is a 100 MS/s, 16-bit arbitrary waveform generator designed for the PCI bus. It can produce both standard functions (sine, square, triangle, ramp) and user-defined arbitrary waveforms with high resolution and flexible sequencing.
The single analog output channel delivers up to 12 V peak-to-peak into a 50 Ω load, with software-selectable output impedance (50 Ω or 75 Ω) and attenuation. Sample rates reach 100 MS/s, supporting sine frequencies up to approximately 43 MHz. Onboard memory starts at 8 MB and can be configured with larger options (commonly up to 256 MB), enabling long waveforms and complex sequence looping. The card includes trigger inputs, marker outputs, and support for multi-module synchronization via NI-TClk. It is programmed through the NI-FGEN driver and is used in automated test, research, and signal simulation applications. The PCI-5421 is a legacy product; NI lists it as no longer available, so units are sourced from surplus and specialist channels.
PCI-5421
PCI-5421
PCI-5421
PCI-5421
PCI-5421
5. QC, Procurement & Logistics SOP
- Inbound Verification – Confirm full model number (PCI-5421), memory option, revision level, and connector condition (SMB and any digital pattern connector). Photograph all labels.
- Functional Testing – Install in a compatible PCI system, load NI-FGEN, and verify self-calibration, basic waveform generation, and output levels. Full validation requires application-specific waveforms and loads.
- QA & Packaging – Protect SMB connectors and the PCI edge connector, clean according to electronics handling practices, and pack in anti-static protective packaging with rigid support.
- Global Logistics & Export Compliance – Classify under the correct HS code for industrial test and measurement modules. Packaging must protect against electrostatic discharge; export documentation is prepared to minimize customs delays.
6. Technical Pitfalls & Integration Warnings
Memory Option – Confirm the installed onboard memory size (8 MB, 32 MB, 256 MB, etc.). Insufficient memory limits waveform length and sequence complexity.
Output Load – Specifications assume a 50 Ω load. Incorrect termination changes amplitude and frequency response.
Driver and OS Compatibility – Use a supported version of NI-FGEN and a compatible operating system. Newer NI software may have limited or no support for this legacy PCI device.
Calibration – Perform self-calibration after installation and temperature stabilization. Output accuracy depends on proper calibration.
7. Frequently Asked Questions (FAQ)
What is the realistic global lead time for a verified PCI-5421?
As a discontinued NI PCI waveform generator, availability depends on surplus stock. Typical lead time after verification is 5–15 business days plus standard shipping.
What is the primary function of this module?
It is a 100 MS/s, 16-bit arbitrary waveform generator for the PCI bus.
What is the maximum output voltage?
Up to 12 V peak-to-peak into a 50 Ω load.
How much onboard memory does it have?
8 MB is the standard configuration; higher-capacity options (32 MB, 256 MB, etc.) exist.
Is the card still in production?
No. National Instruments lists the PCI-5421 as no longer available. Units are sourced exclusively from surplus and specialist refurbishment channels.
What software is required?
NI-FGEN driver and associated development environments (LabVIEW, etc.).
What should be confirmed before ordering a replacement?
Exact model (), memory size option, required driver/software version, and compatibility with the host PCI system and operating system.
