Product Introduction
The NI-5772 is a high-speed FlexRIO digitizer adapter module designed for applications requiring high-bandwidth waveform acquisition and FPGA-based signal processing. It provides 2 analog input channels, 12-bit resolution, sampling rates up to 800 MS/s, and analog input bandwidth up to approximately 400 MHz.
When combined with a compatible NI FlexRIO FPGA module, the NI-5772 enables engineers to build customized high-speed measurement and signal-processing systems. The FPGA architecture allows acquired data to be processed directly in hardware for applications requiring deterministic timing, low latency, custom triggering, real-time signal processing, or high-throughput data streaming.
Typical NI-5772 applications include high-speed waveform acquisition, communications research, radar and electronic test, transient capture, semiconductor testing, scientific instrumentation, custom digital signal processing, and advanced automated test systems.
Product Overview
The National Instruments NI-5772 is part of the FlexRIO adapter module family. Unlike a conventional standalone digitizer, the NI-5772 is designed to operate with a compatible FlexRIO FPGA module.
A typical system architecture is:
High-Speed Analog Signal → NI-5772 → FlexRIO FPGA Module → FPGA Processing → Host / Storage / Test Application
This architecture combines high-speed analog-to-digital conversion with user-programmable FPGA processing, allowing engineers to customize the measurement system for specialized applications.
Key Features
2 High-Speed Analog Input Channels
The NI-5772 provides two analog input channels for high-speed waveform acquisition.
The dual-channel architecture is suitable for applications requiring synchronized acquisition of two high-frequency signals.
800 MS/s Sampling Rate
The NI-5772 supports sampling rates up to 800 MS/s, allowing the module to acquire fast transient and high-frequency analog waveforms.
High sampling performance is useful for:
- Transient signal acquisition
- Communications testing
- Radar signal acquisition
- High-speed electronic testing
- Scientific measurements
- Custom waveform analysis
12-Bit Resolution
The NI-5772 provides 12-bit analog-to-digital conversion.
This combination of resolution and high sampling rate provides a balance between measurement fidelity and acquisition speed for high-frequency applications.
400 MHz Analog Input Bandwidth
The NI-5772 provides analog input bandwidth up to approximately 400 MHz, allowing acquisition of high-frequency signal content within the supported input characteristics.
This bandwidth makes the module suitable for RF-related intermediate-frequency measurements, communications research, radar testing, and other wideband waveform applications.
Simultaneous High-Speed Acquisition
The two analog input channels support synchronized high-speed acquisition, enabling engineers to compare timing, amplitude, frequency, and phase characteristics between signals.
Typical dual-channel measurements include:
- Input/output comparison
- Reference and response measurements
- Dual-signal transient capture
- Communications waveform analysis
- Phase-sensitive measurements
FlexRIO FPGA Integration
A major advantage of the NI-5772 is its integration with the NI FlexRIO FPGA architecture.
Instead of sending all acquired data directly to a host processor before analysis, the FPGA can process data immediately after acquisition.
FPGA functionality can be used for:
- Real-time digital signal processing
- Custom triggering
- Digital filtering
- Threshold detection
- Decimation
- Data reduction
- FFT processing
- Custom measurement algorithms
Low-Latency Processing
FPGA-based processing enables low-latency signal analysis and decision making without relying entirely on the host computer.
This capability is particularly valuable for applications requiring deterministic response to acquired signals.
High-Throughput Data Acquisition
Two channels operating at hundreds of megasamples per second can generate substantial amounts of measurement data.
The FlexRIO architecture allows engineers to process, reduce, filter, or select relevant data on the FPGA before transferring it to the host system.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | FlexRIO Digitizer Adapter Module |
| Model | NI-5772 |
| Manufacturer | National Instruments |
| Analog Input Channels | 2 |
| ADC Resolution | 12-Bit |
| Maximum Sample Rate | 800 MS/s |
| Analog Input Bandwidth | Up to 400 MHz |
| Sampling Architecture | Simultaneous High-Speed Acquisition |
| Platform | NI FlexRIO |
| FPGA Processing | Through Compatible FlexRIO FPGA Module |
| Primary Function | High-Speed Waveform Acquisition |
| Typical Applications | Wideband Acquisition, Communications, Radar, Transient Capture and FPGA Signal Processing |
How Does the NI-5772 Work?
The NI-5772 receives high-speed analog signals and converts them into digital sample data using high-speed analog-to-digital converters.
The digitized data is then transferred to the FPGA on the compatible FlexRIO FPGA module.
A simplified signal path is:
Analog Signal → NI-5772 ADC → FlexRIO FPGA → Real-Time Processing → Host Application
The FPGA can process the incoming data before transferring selected or processed information to the host computer.
High-Speed Waveform Acquisition
The NI-5772 is designed for applications where conventional lower-speed data acquisition hardware does not provide sufficient sample rate or bandwidth.
With sampling rates up to 800 MS/s and approximately 400 MHz analog bandwidth, the module can capture rapidly changing analog waveforms for advanced analysis.
Wideband Signal Acquisition
Wideband measurement applications require both sufficient analog bandwidth and high sampling rates.
The NI-5772 combines these characteristics with FPGA processing, making it useful for custom wideband measurement systems.
Applications can include:
- Wideband communications signals
- Intermediate-frequency signals
- Pulse measurements
- Radar waveforms
- High-speed electronic signals
- Scientific instrumentation
Transient Signal Capture
Fast electrical events may occur over extremely short periods and require high-speed digitization to capture their waveform characteristics accurately.
The NI-5772 can be incorporated into transient acquisition systems for capturing:
- Fast pulses
- Electronic transients
- Switching events
- Impulse signals
- Short-duration waveform events
FPGA-Based Signal Processing
The NI-5772 becomes particularly powerful when high-speed acquisition is combined with programmable FPGA processing.
Instead of transferring the complete raw data stream directly to a CPU, engineers can implement custom FPGA algorithms such as:
- Digital filters
- FFT processing
- Peak detection
- Threshold detection
- Trigger logic
- Decimation
- Data averaging
- Pulse detection
- Real-time classification
Custom Triggering
Conventional digitizers typically provide predefined triggering capabilities. FlexRIO allows engineers to develop more specialized trigger logic in the FPGA.
Custom triggers can respond to combinations of signal characteristics, timing conditions, thresholds, or external system events.
Data Reduction
High-speed digitizers can generate extremely large raw data streams.
FPGA processing can reduce the amount of data transferred to the host by extracting only the information required by the application.
A typical architecture is:
800 MS/s Raw Acquisition → FPGA Processing → Relevant Data Extraction → Host Transfer
This approach can significantly reduce host processing and data-storage requirements.
Communications Testing
The NI-5772 can be used in communications research and validation systems that require acquisition of high-bandwidth analog or intermediate-frequency waveforms.
FPGA processing can be used to implement custom communications algorithms for research, prototyping, and automated testing.
Radar and Pulse Measurement
Radar and pulse applications frequently require high sample rates, wide bandwidth, deterministic triggering, and real-time signal processing.
The NI-5772 can be integrated into FlexRIO systems for:
- Pulse acquisition
- Radar waveform capture
- Pulse timing analysis
- Signal detection
- Custom triggering
- Real-time signal processing
Semiconductor Testing
High-speed semiconductor and electronic device validation can require acquisition of rapidly changing signals and custom analysis algorithms.
The NI-5772 can be integrated into automated semiconductor test systems where FPGA processing is used for deterministic test execution and high-throughput signal analysis.
Scientific Research
The programmable architecture of FlexRIO makes the NI-5772 suitable for specialized scientific instrumentation where conventional digitizers may not provide the required processing flexibility.
Applications can include experimental physics, high-speed sensor acquisition, pulse detection, laboratory research, and custom instrumentation.
Why FPGA Processing Matters
At 800 MS/s, continuous raw waveform acquisition can generate very large amounts of data.
For example, even a single channel operating at hundreds of millions of samples per second produces a substantial raw data stream before protocol overhead and additional processing are considered.
An FPGA can perform calculations directly on the incoming samples, reducing the data before it reaches the host processor.
NI-5772 vs Conventional Digitizer
| Feature | NI-5772 FlexRIO | Conventional Digitizer |
|---|---|---|
| Analog Acquisition | High-Speed | Yes |
| User-Programmable FPGA | Available Through FlexRIO | Usually Limited or Unavailable |
| Custom DSP | Highly Flexible | Instrument Dependent |
| Custom Triggering | FPGA Programmable | Usually Predefined |
| Low-Latency Processing | Strong Advantage | Architecture Dependent |
| Development Complexity | Higher | Usually Lower |
NI-5772 vs NI-5771
The NI-5771 and NI-5772 are FlexRIO digitizer adapter modules designed for high-speed analog acquisition, but they should be selected according to the required sample rate, bandwidth, resolution, and application architecture.
Before replacing one model with another, verify:
- Analog input bandwidth
- Sample rate
- ADC resolution
- Input range
- Connector configuration
- FlexRIO FPGA compatibility
- Software compatibility
NI-5772 and FlexRIO FPGA Modules
The NI-5772 is an adapter module and requires an appropriate FlexRIO FPGA module to create a complete acquisition system.
The complete architecture is:
NI-5772 Digitizer Adapter Module + Compatible FlexRIO FPGA Module + PXI/PXIe System
The exact FPGA module should be selected according to processing requirements, FPGA resources, data-transfer bandwidth, system compatibility, and software support.
FlexRIO System Architecture
A complete FlexRIO measurement system can contain:
Signal Source
↓
NI-5772 Digitizer Adapter Module
↓
FlexRIO FPGA Module
↓
PXI / PXIe Chassis
↓
Controller / Host PC
↓
Measurement and Analysis Software
Real-Time Digital Signal Processing
The programmable FPGA architecture can be used to implement deterministic digital signal-processing algorithms directly in the acquisition path.
Possible processing functions include:
- FIR filtering
- IIR filtering
- FFT processing
- Digital downconversion
- Peak detection
- Signal averaging
- Decimation
- Threshold analysis
- Event detection
High-Speed Data Streaming
Applications requiring continuous acquisition should consider the complete system data path rather than only the ADC sample rate.
System throughput can depend on:
- Number of active channels
- Sampling rate
- Sample format
- FPGA processing
- PCI/PXI Express bandwidth
- Host controller performance
- Storage performance
- Software architecture
How to Choose a FlexRIO Digitizer
Before selecting the NI-5772, evaluate:
- Required analog bandwidth
- Required sample rate
- ADC resolution
- Number of analog input channels
- Signal amplitude
- Required FPGA resources
- Real-time processing requirements
- Trigger requirements
- Continuous streaming requirements
- FlexRIO FPGA module compatibility
- PXI or PXIe system compatibility
- Software and driver compatibility
Software and Programming
The NI-5772 is designed for integration into the NI FlexRIO development environment.
Depending on the hardware generation and application, engineers can develop FPGA-based acquisition and processing systems using compatible NI software and drivers.
Typical development requirements can include:
- FPGA configuration
- High-speed acquisition logic
- Trigger programming
- Digital signal processing
- DMA data transfer
- Host-side analysis
- Data logging
Always verify software, driver, FPGA module, and operating-system compatibility for the exact NI-5772 system configuration.
Industries
- Aerospace and Defense
- Wireless Communications
- Semiconductor Test
- Electronic Validation
- Scientific Research
- Automated Test
- Radar and Signal Intelligence
- Research and Development
Applications
High-Speed Waveform Acquisition
The NI-5772 provides high-speed digitization for capturing fast analog waveforms and transient events.
Wideband Signal Acquisition
Its high sample rate and wide analog bandwidth make the NI-5772 suitable for broadband and intermediate-frequency signal acquisition.
Radar Testing
FPGA processing and high-speed acquisition can be used for pulse capture, radar signal processing, and custom trigger applications.
Communications Research
The NI-5772 can be incorporated into custom communications research platforms requiring programmable real-time signal processing.
Transient Capture
High sampling rates allow fast electronic events and short-duration signals to be digitized for analysis.
FPGA Signal Processing
Compatible FlexRIO FPGA hardware allows custom filtering, triggering, detection, data reduction, and DSP algorithms to operate directly on acquired samples.
Recommended Related Products
| NI-5772 | 2-channel, 12-bit, 800 MS/s FlexRIO digitizer adapter module for high-speed and wideband waveform acquisition. |
| NI-5771 | FlexRIO digitizer adapter module for high-speed analog acquisition applications requiring a different performance configuration. |
| NI FlexRIO FPGA Modules | FPGA processing hardware used with FlexRIO adapter modules for custom high-speed acquisition and signal-processing systems. |
| PXIe FlexRIO Modules | PXI Express FPGA-based instrumentation for high-throughput acquisition, real-time processing, and custom test applications. |
| PXI Express Chassis | Modular instrumentation chassis for integrating FlexRIO, digitizers, RF instruments, controllers, and other PXIe hardware. |
Why Choose NI-5772?
- 2 high-speed analog input channels
- 12-bit ADC resolution
- Up to 800 MS/s sampling rate
- Up to approximately 400 MHz analog bandwidth
- Simultaneous high-speed acquisition
- FlexRIO FPGA integration
- Custom FPGA signal processing
- Custom triggering capability
- Low-latency processing architecture
- High-throughput data acquisition
- Suitable for wideband signals
- Suitable for transient capture
- Suitable for radar applications
- Suitable for communications research
- Suitable for automated test
Frequently Asked Questions
What is the NI-5772?
The NI-5772 is a two-channel FlexRIO digitizer adapter module designed for high-speed analog waveform acquisition and FPGA-based signal processing.
How many analog input channels does the NI-5772 have?
The NI-5772 provides two high-speed analog input channels.
What is the resolution of the NI-5772?
The NI-5772 uses 12-bit analog-to-digital conversion.
What is the maximum sample rate of the NI-5772?
The NI-5772 supports sampling rates up to approximately 800 MS/s.
What is the bandwidth of the NI-5772?
The NI-5772 provides analog input bandwidth up to approximately 400 MHz.
Is the NI-5772 a standalone digitizer?
No. The NI-5772 is a FlexRIO adapter module and is designed to operate with a compatible FlexRIO FPGA module.
Does the NI-5772 include an FPGA?
The NI-5772 itself is the digitizer adapter module. FPGA processing is provided by the compatible FlexRIO FPGA module used with it.
Can the NI-5772 perform real-time signal processing?
Yes. When combined with compatible FlexRIO FPGA hardware, acquired data can be processed directly on the FPGA using custom signal-processing algorithms.
Can the NI-5772 be used for custom triggering?
Yes. The programmable FPGA architecture enables custom triggering logic based on application-specific signal and timing conditions.
Can the NI-5772 be used for FFT processing?
Yes. Compatible FPGA resources can be programmed for FFT and other digital signal-processing functions when supported by the selected hardware and development architecture.
Can the NI-5772 be used for radar applications?
Yes. Its high sampling rate, wide bandwidth, and FPGA processing capability make it suitable for custom radar waveform acquisition and pulse-processing systems.
Can the NI-5772 be used for communications testing?
Yes. The NI-5772 can acquire wideband and intermediate-frequency signals for communications research, prototyping, and validation applications.
Can the NI-5772 continuously stream data?
Continuous streaming capability depends on the configured sample rate, number of active channels, FPGA processing, bus bandwidth, host performance, storage system, and software architecture. The complete system throughput should therefore be evaluated before deployment.
What is FlexRIO?
FlexRIO is an NI FPGA-based instrumentation architecture that combines programmable FPGA processing with interchangeable or integrated high-performance I/O for custom measurement, control, and signal-processing applications.
What hardware is required to use the NI-5772?
A complete system typically requires the NI-5772, a compatible FlexRIO FPGA module, an appropriate PXI/PXIe system, controller or host interface, and compatible NI software.
What should I check before purchasing an NI-5772?
Before purchasing the NI-5772, verify the required sample rate, analog bandwidth, resolution, channel count, signal range, compatible FlexRIO FPGA module, FPGA resource requirements, PXI/PXIe system compatibility, software support, driver compatibility, and required data-transfer performance.
Conclusion
The NI-5772 FlexRIO Digitizer Adapter Module combines two high-speed analog input channels, 12-bit resolution, sampling rates up to 800 MS/s, approximately 400 MHz analog bandwidth, and integration with programmable FlexRIO FPGA hardware. These capabilities make the NI-5772 well suited for high-speed waveform acquisition, wideband signal capture, radar and pulse measurement, communications research, semiconductor testing, transient acquisition, scientific instrumentation, and custom real-time FPGA signal-processing systems.
