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July 2025
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PXI-6561, 16 Channels, 100 MHz Frequency, PXI Digital Waveform Instrument
Rated 4.5/5 | 5 ratings
Actual item may vary if no part number is provided on quote request.
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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 PXI-6561 PXI Digital Waveform Instrument
The PXI-6561 (Part Numbers: 778993-01, 778993-02, 778993-03, 191562A-03) is a 16-Channel, 100 MHz Digital Waveform Instrument designed for interfacing, with up to 20 low-voltage signaling digital pins. The PXI 6561 part numbers differ in their onboard memory sizes. Part number 778993-01 has 2 Mb/channel, part number 778993-02 has 16 Mb/channel, and part number 778993-03 has 128 Mb/channel. This instrument can sample waveforms below and up to 100 MHz and can interface with standard LVDS voltage levels as well. The PXI 6561 also comes with capabilities for advanced synchronization, which is necessary for building joint mixed-signal test systems. The onboard clock on this instrument can operate within a frequency range of 48 Hz to 100 MHz.
This Digital Waveform Instrument comes with the Synchronization and Memory Core (SMC) technology. Thus, parameters such as maximum number of waveforms stored in memory, number of samples, and number of script instructions are user-defined and flexible. The SMC allows instructions and waveforms to share the onboard memory. The NI PXI-6561 provides 2 Mbit/channel for both the generation sessions and acquisition sessions. It can operate in two generation modes, which are the single-waveform mode and scripted mode. In the scripted mode, the PXI 6561 generates a complex or straightforward sequence of waveforms. In single waveform mode, it produces a single waveform once, continuously or n times.
The National Instruments PXI-6561 comes equipped with five types of triggers: Start Trigger, Pause Trigger, Script Trigger, Advance Trigger, and Reference Trigger. The NI-HSDIO driver software which is used with the NI PXI 6561 allows the user to control and configure their device. It also provides application interfaces for several development environments, such as LabVIEW 7.0 (or later), Microsoft Visual C/C++ 6.0 or later, and LabWindows™/CVI™ 6.0 or later. Other driver and editing software for this instrument includes Digital Waveform Editor, Express VIs for LabVIEW 7.1 and later, and Script Editor. The device weighs 12 oz., and measures 8.5 x 0.8 x 5.1 in. in physical dimensions.
The PXI-6561 has been declared Obsolete by National Instruments, and is no longer available from the manufacturer. However, the PXI Digital Waveform Instrument will remain available in perpetuity for both purchase and repair services with Apex Waves.
| Model | PXI-6561 |
|---|---|
| Manufacturer | National Instruments |
| Part Numbers | 778993-01, 778993-02, 778993-03, 191562A-03 |
| Type | PXI Digital Waveform Instrument |
| Channels | 16 |
| Operating Temp Range | 0 °C to 55 °C |
| Storage Temp Range | -20 °C to 70 °C |
| Max Total Power | 16.4 W |
| PFI Channels | 4 |
| Output Protection Range | 0 V to 5 V per Channel |
| Voltage Range | 0 V, minimum; 2.4 V, maximum |
| Dimensions | 8.5 × 0.8 × 5.1 in. |
| Weight | 12 oz. |
| Warranty | Three Year Warranty |
| PXI-6561 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for PXI-6561:
National Instruments PXI-6561 Frequently Asked Questions
Question: What is the difference between the three part numbers for the PXI-6561?
Answer: The different onboard memory sizes that are available for the Digital Waveform Instrument include part number 778993-01 with 2 Mb/channel, 778993-02 with 16 Mb/channel, and 778993-03 with 128 Mb/channel.
Question: What driver is used for the NI PXI-6561?
Answer: The National Instruments driver used is NI-HSDIO.
Question: What is the power requirement for the PXI-6561?
Answer: The maximum power requirement for the instrument is 16.4 W.
Question: Which types of front panel connectors does the Digital Waveform Instrument have?
Answer: The NI PXI-6561 has SMB jack CLK IN, CLK OUT, and PFI 0 connectors, as well as a 12X InfiniBand digital data & control connector.
| Accessory Type | Model Name | Part Number |
|---|---|---|
| Cable | SHB12X-B12X (Shielded) | 192344-01 (1 m) |
| 192344-02 (2 m) | ||
| SHB12X-H3X24 (Shielded, Flying Lead) | 196236-1R5 (1.5 m) | |
| Breakout Box | SMA-2164 | 779323-01 |
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