The PXIe-5114 is a cost-effective, two-channel PXI Express oscilloscope designed for automated waveform acquisition, electronic validation and production testing. It combines 125 MHz analog bandwidth, a maximum real-time sample rate of 250 MS/s and 8-bit vertical resolution.
Both analog channels are sampled simultaneously and support selectable 50 Ω or 1 MΩ input impedance. Flexible voltage ranges, programmable vertical offset, AC/DC coupling, multiple trigger modes and optional deep onboard memory allow the PXIe-5114 to accommodate a broad range of analog and digital signal measurements.
Key Features of the PXIe-5114
- Two simultaneously sampled analog input channels
- 125 MHz maximum analog bandwidth
- 250 MS/s maximum real-time sample rate
- Up to 5 GS/s random interleaved sampling
- 8-bit vertical resolution
- Selectable 50 Ω and 1 MΩ input impedance
- Full-scale input ranges from 40 mVpp to 40 Vpp
- AC, DC and GND input coupling
- Programmable 20 MHz noise filter
- 8 MB, 64 MB or 256 MB per-channel memory configurations
- Edge, window, hysteresis, video, digital and software triggering
- Flexible pretrigger and post-trigger acquisition
- External sample clock and reference clock support
- NI-TClk multi-instrument synchronization
- Compatible with NI-SCOPE and InstrumentStudio
PXIe-5114 Technical Specifications
| Product Model | PXIe-5114 |
|---|---|
| Product Type | PXI Express Oscilloscope |
| Number of Channels | 2 simultaneously sampled channels |
| Analog Bandwidth | 125 MHz; 100 MHz on the 40 mVpp range |
| Maximum Real-Time Sample Rate | 250 MS/s |
| Random Interleaved Sampling | Up to 5 GS/s for repetitive signals |
| Vertical Resolution | 8 bits |
| Input Configuration | Referenced single-ended |
| Input Impedance | 50 Ω or 1 MΩ |
| Input Coupling | AC, DC or GND; AC coupling available with 1 MΩ input |
| Full-Scale Input Ranges | 0.04, 0.1, 0.2, 0.4, 1, 2, 4, 10, 20 and 40 Vpp |
| Bandwidth-Limiting Filter | 20 MHz noise filter |
| Onboard Memory Options | 8 MB, 64 MB or 256 MB per channel |
| Timebase Frequency | 250 MHz |
| Internal Timebase Accuracy | ±25 ppm when not locked to a reference clock |
| External Sample Clock Range | 50 MHz to 250 MHz |
| Analog Input Connectors | 2 × BNC |
| External Trigger Connector | BNC |
| Clock Input Connector | SMB |
| Bus Interface | PXI Express |
| Operating Temperature | 0°C to 55°C |
PXIe-5114 Part Numbers and Memory Options
| Part Number | Onboard Memory | Configuration |
|---|---|---|
| 783591-01 | 8 MB per channel | Standard-memory configuration |
| 783591-02 | 64 MB per channel | Extended-memory configuration |
| 783591-03 | 256 MB per channel | Deep-memory configuration |
When requesting a quotation, provide the required memory capacity or exact part number. Higher-memory versions are better suited to long records, multi-record acquisition and extended high-speed waveform capture.
125 MHz Bandwidth and 250 MS/s Sampling
The PXIe-5114 provides 125 MHz analog bandwidth on most input ranges. Its maximum real-time sampling rate of 250 MS/s supports the acquisition of single-shot events, repetitive waveforms and transient signals within the instrument’s supported bandwidth.
For repetitive signals, random interleaved sampling can provide an effective sampling rate of up to 5 GS/s. This mode improves the displayed timing resolution of repetitive waveforms but is not intended for nonrepetitive or single-shot events.
Flexible Voltage Measurement Ranges
The PXIe-5114 provides full-scale input ranges from 40 mVpp to 40 Vpp. Smaller ranges improve sensitivity when measuring low-amplitude signals, while the larger ranges accommodate higher-voltage waveforms without requiring external attenuation in every application.
Programmable vertical offset allows a smaller input range to be positioned around a DC level. This makes it possible to examine small waveform variations riding on a larger DC component while using more of the available ADC range.
The maximum permitted input voltage depends on the selected impedance and signal characteristics. Appropriate probes, attenuation and protection should be used whenever the connected signal may exceed the specified input limits.
Selectable 50 Ω and 1 MΩ Input Impedance
Each analog channel can be configured for 50 Ω or 1 MΩ input impedance:
- 50 Ω input is suitable for impedance-matched signal generators, communication circuits and high-frequency coaxial signal paths.
- 1 MΩ input reduces loading on general electronic circuits and supports conventional passive oscilloscope probes.
Selecting the correct impedance is important for maintaining signal amplitude and reducing reflections. A signal source designed for a 50 Ω load may display approximately twice the expected amplitude when connected to a high-impedance input.
Input Coupling and Noise Filtering
DC coupling preserves the complete waveform, including its DC component. AC coupling can remove a large DC component so that smaller AC variations are easier to measure. On the PXIe-5114, AC coupling is available when using the 1 MΩ input configuration.
A programmable 20 MHz bandwidth-limiting filter helps reduce high-frequency noise when the signal of interest does not require the full 125 MHz bandwidth. GND coupling provides an internal reference for checking baseline and offset behavior.
Advanced Triggering Capabilities
The PXIe-5114 supports a broad selection of trigger types for capturing specific signal events:
- Edge triggering
- Window triggering
- Hysteresis triggering
- Video triggering
- Digital triggering
- Immediate triggering
- Software triggering
Trigger sources include CH 0, CH 1, the front-panel external trigger input, PXI trigger lines, PFI lines and software. Programmable trigger delay and holdoff settings help isolate individual events within repetitive or complex waveforms.
Video triggering supports selected SDTV, EDTV and HDTV formats, making the module useful for automated testing of supported analog video timing and signal characteristics.
Deep Memory and Multi-Record Acquisition
The PXIe-5114 is available with 8 MB, 64 MB or 256 MB per-channel memory configurations. Deep onboard memory enables longer capture durations at high sample rates and supports multi-record acquisition for collecting repeated events with reduced software overhead.
Users can configure pretrigger and post-trigger samples from zero up to the full record length. Multi-record operation is particularly useful for production testing, pulse analysis and applications that require many triggered events rather than one continuous waveform.
PXI Timing and Synchronization
The PXIe-5114 can use its internal clock, a front-panel external sample clock or an external reference clock. It can also synchronize acquisitions with other supported PXI instruments through backplane timing and trigger resources.
NI-TClk technology allows the sample clocks and trigger responses of multiple supported instruments to be aligned. This is useful when building systems that combine several oscilloscopes or coordinate waveform acquisition with signal generators and other modular instruments.
Typical PXIe-5114 Applications
- Automated electronic device validation
- Production-line functional testing
- Analog and mixed-signal waveform acquisition
- Pulse-width and timing measurements
- Power-supply startup and transient analysis
- Component and circuit characterization
- Automotive electronics testing
- Supported analog video signal testing
- Research and laboratory measurement systems
- Synchronized PXI test platforms
NI-SCOPE and InstrumentStudio Support
The PXIe-5114 is controlled through the NI-SCOPE instrument driver. NI-SCOPE provides functions for instrument configuration, waveform acquisition, triggering, measurement, data transfer, calibration and automated testing.
Supported development environments include LabVIEW, LabWindows/CVI, C/C++, C# and VB.NET, depending on the installed driver and operating system. InstrumentStudio provides an interactive soft front panel for configuring channels, triggers and acquisitions without first creating a test program.
NI Measurement & Automation Explorer can be used to identify the module, review device information, run self-tests and access basic configuration tools.
PXI Express Chassis Integration
The PXIe-5114 requires a compatible PXI Express chassis and either an embedded PXI controller or an external computer connection. Confirm that the selected chassis provides a compatible PXI Express peripheral slot, adequate cooling and sufficient controller bandwidth.
For reliable measurements, allow the module to warm up for at least 15 minutes and complete a self-calibration after warm-up. The chassis should maintain proper forced-air cooling, and unused slots should be fitted with appropriate filler panels when required.
PXIe-5114 Troubleshooting
Why is the PXIe-5114 not detected by the system?
Verify that the module is installed in a compatible PXI Express slot and that the chassis and controller are powered correctly. Install a supported NI-SCOPE driver, restart the system and check the device in NI Measurement & Automation Explorer.
Why does the measured amplitude appear incorrect?
Confirm the configured input impedance, voltage range, probe attenuation and vertical offset. A source designed for a 50 Ω termination can show an incorrect amplitude when the oscilloscope is configured for 1 MΩ.
Why is the waveform clipped?
Select a larger input range, adjust the vertical offset or use an appropriate attenuating probe. Before reconnecting the signal, verify that its maximum voltage remains within the permitted input limits.
How can waveform noise be reduced?
Enable the 20 MHz noise filter when the signal does not require the full bandwidth. Correct grounding, shielded cables, appropriate termination, shorter connections and waveform averaging can also reduce unwanted noise.
Why is AC coupling unavailable?
AC coupling is supported with the 1 MΩ input configuration. Change the channel impedance from 50 Ω to 1 MΩ before selecting AC coupling.
Why does random interleaved sampling not capture a transient correctly?
Random interleaved sampling requires a repetitive waveform. Use real-time sampling at up to 250 MS/s for single-shot events, nonrepetitive transients and irregular signals.
PXIe-5114 Comparison with Similar PXI Oscilloscopes
| Model | Channels | Bandwidth | Maximum Sample Rate | Resolution | Recommended Use |
|---|---|---|---|---|---|
| PXIe-5114 | 2 | 125 MHz | 250 MS/s | 8-bit | Cost-effective automated waveform acquisition |
| PXIe-5111 | 2 | 350 MHz | 3 GS/s | 8-bit | Higher-speed general-purpose measurements |
| PXIe-5113 | 2 | 500 MHz | 3 GS/s | 8-bit | Higher-bandwidth automated testing |
| PXIe-5105 | 8 | 60 MHz | 60 MS/s | 12-bit | High-channel-count acquisition |
| PXIe-5163 | 2 | 200 MHz | 1 GS/s | 14-bit | Higher-resolution waveform measurement |
Recommended Related Products
- PXIe-5111 – Recommended when 350 MHz bandwidth and sampling rates up to 3 GS/s are required.
- PXIe-5113 – Suitable for faster signals requiring 500 MHz bandwidth and 3 GS/s sampling.
- PXIe-5105 – Provides eight simultaneously sampled channels and 12-bit resolution for high-density acquisition.
- PXIe-5163 – A 14-bit alternative for applications requiring improved vertical resolution and 200 MHz bandwidth.
How to Select the Right PXI Oscilloscope
Choose the PXIe-5114 when the application requires two channels, bandwidth up to 125 MHz, flexible input ranges and a cost-effective PXI Express format. Select the memory configuration according to the required record length and number of triggered acquisitions.
For signals above 125 MHz or applications requiring substantially faster real-time sampling, consider the PXIe-5111 or PXIe-5113. Choose the PXIe-5163 when vertical resolution is more important, or the PXIe-5105 when more simultaneously sampled channels are required.
Why Choose the PXIe-5114?
- Cost-effective two-channel PXI Express waveform acquisition
- Flexible 50 Ω and 1 MΩ input configurations
- Wide selection of voltage ranges and programmable offset
- Three onboard memory capacities for different acquisition requirements
- Advanced analog, digital and video trigger options
- PXI timing and NI-TClk synchronization support
- Suitable for interactive measurements and automated test systems
Frequently Asked Questions
What is the PXIe-5114?
The PXIe-5114 is a two-channel, 8-bit PXI Express oscilloscope with 125 MHz analog bandwidth and a maximum real-time sample rate of 250 MS/s.
What part numbers are available for the PXIe-5114?
The primary part numbers are 783591-01, 783591-02 and 783591-03. These versions provide different onboard memory capacities.
How much memory does the PXIe-5114 have?
Depending on the part number, the module provides 8 MB, 64 MB or 256 MB per channel.
Does the PXIe-5114 sample both channels simultaneously?
Yes. The module provides two simultaneously sampled analog input channels.
What is the maximum real-time sample rate?
The maximum real-time sample rate is 250 MS/s. Random interleaved sampling can provide an effective rate of up to 5 GS/s for repetitive signals.
What input impedance options are available?
Each channel supports selectable 50 Ω and 1 MΩ input impedance.
Does the PXIe-5114 support AC coupling?
Yes. AC coupling is available when the analog input is configured for 1 MΩ impedance.
What is the maximum input range?
The maximum full-scale input range is 40 Vpp in the supported 1 MΩ configuration. Signal peaks must remain within the specified overload limits.
Does the PXIe-5114 include a user-programmable FPGA?
No. The PXIe-5114 is a conventional PXI oscilloscope and does not provide a user-programmable FPGA.
Which software driver is required?
The PXIe-5114 uses the NI-SCOPE instrument driver. Confirm compatibility between the driver version, operating system and selected programming environment.
Can the PXIe-5114 operate independently?
No. It must be installed in a compatible PXI Express chassis and connected to an embedded PXI controller or external computer.
Is the PXIe-5114 suitable for automated testing?
Yes. Programmable channel settings, multiple trigger modes, deep memory, PXI synchronization and NI-SCOPE APIs make it suitable for automated validation and production testing.
Request a Quote for the PXIe-5114
Contact us for current availability, lead time and project pricing for the PXIe-5114 PXI Express Oscilloscope. Please provide the required part number or memory capacity when requesting a quotation. We can also help verify compatible PXI chassis, controllers, probes, cables and related instruments for your system.
