Anonymous Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
778953-03
NI 778953-03, 32 Digital I/O Channels, 100 MHz, PXI-6542 Digital Waveform Generator/Analyzer
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
✔ Free Domestic Ground Shipping
✔ NIST Calibration Available
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments 778953-03 Digital Waveform Generator/Analyzer
The National Instruments 778953-03 (PXI-6542) is a 100 MHz digital waveform generator/analyzer designed for high-speed stimulus-response applications, including semiconductor validation, functional testing, and digital protocol simulation. With 64 Mbit of onboard memory per channel, the module can store long digital sequences while providing the flexibility required for demanding automated test applications.
The 778953-03 features 32 bidirectional digital channels, each with individually configurable direction control. It supports four selectable logic levels—1.8 V, 2.5 V, 3.3 V, and 5 V—making it compatible with a wide range of modern digital ICs. Its combination of deep memory, programmable I/O, and high-speed operation makes it well suited for applications requiring complex digital stimulus and response patterns.
Precise timing is critical when working with high-speed digital signals. The 778953-03 provides a data-delay resolution of less than 0.04% of the clock period and maintains a maximum inter-channel skew of ±600 ps, helping ensure the signal integrity required for synchronous digital testing. The module can operate using either an internal or external sampling clock, providing additional flexibility for system-level timing and synchronization.
The 778953-03 also incorporates National Instruments' Synchronization and Memory Core Architecture, allowing a single device to synchronize up to four digitizers, arbitrary waveform generators (AWGs), or other compatible digital instruments. This architecture enables the development of complex, low-skew test systems for high-pin-count electronics without requiring additional synchronization hardware. As a result, users can reduce system cost while maintaining greater flexibility when designing automated test equipment (ATE) systems.
Software support further simplifies the integration of the 778953-03 into test applications. The NI-HSDIO driver provides the necessary interface for controlling the module, while the NI Digital Waveform Editor allows engineers to create, view, and modify digital test vectors in a graphical environment. The editor can import test vector files in ASCII and VCD formats, including files generated by simulators and spreadsheets. Users can modify existing vectors or create new test sequences using features such as pseudo-random and counter-mode pattern generation.
Once test vectors have been created or edited, they can be readily integrated into LabVIEW, SignalExpress, or C-based programming environments, providing a streamlined workflow from test-vector development through automated execution.
| Model | 778953-03 |
|---|---|
| Part Number | 778953-03 |
| Part Type | Digital Waveform Generator/Analyzer |
| Form Factor | PXI/PXI Express Hybrid Slot |
| Channels | 32 Digital I/O |
| Direction Control | Per-Channel Configurable |
| Max Clock Rate | 100 MHz |
| Onboard Memory | 64 Mbit/Channel |
| Logic Levels | 1.8V–5.0V Selectable |
| Channel Skew | ±600 ps |
Associated part numbers for 778953-03:
Delivery:
Eligible returns may be accepted within 30 days at Apex Waves’ discretion. A 25% restocking fee applies; non-refundable and built-to-order products are excluded.
Payment:
Receive Price & Availability Today!
Ask About Our Tiered Calibration Levels
Option & Modules:
Confirm Your Requirements or Versions
Cost & Lead Time Available Upon Request for Service
Repair Evaluation: $150
Common Typos:
Why Buy From Apex Waves:
