PXIe-7862 Kintex-7 325T FPGA Multifunction RIO Module
Земля PXIe-7862 is a high-performance PXI Express multifunction reconfigurable I/O module built around a user-programmable Kintex-7 325T FPGA. It integrates analog acquisition, analog generation, digital I/O and onboard memory for demanding test, measurement and control systems.
With 16 analog inputs, 8 analog outputs, 32 bidirectional digital I/O lines и 512 MB of onboard DRAM, the PXIe-7862 is suitable for hardware-in-the-loop testing, multichannel sensor simulation, custom protocol communication and high-speed closed-loop control.
Key Features of the PXIe-7862
- Kintex-7 325T user-programmable FPGA
- 512 MB onboard DRAM
- 16 simultaneously sampled analog input channels
- 16-bit analog input resolution
- 1 MS/s maximum sampling rate per analog input
- 8 analog output channels with 16-bit resolution
- 1 MS/s maximum analog output update rate
- 32 bidirectional digital I/O lines
- 10 MHz maximum digital clock rate
- 3.3 V single-ended digital signaling
- Independent timing and triggering for individual channels
- Multirate acquisition support
- PXI peer-to-peer data streaming
PXIe-7862 Technical Specifications
| Product Model | PXIe-7862 |
|---|---|
| Part Number | 786672-01 |
| Product Type | PXI Express Multifunction Reconfigurable I/O Module |
| ФПГА | Кintex-7 325T |
| Onboard Memory | 512 МБ ОЗУ |
| Analog Inputs | 16 |
| Analog Input Resolution | 16 bit |
| Maximum Analog Input Rate | 1 Мвыб/с на канал |
| Analog Input Ranges | ±1 V, ±2 V, ±5 V and ±10 V |
| Maximum Differential Inputs | 16 |
| Maximum Single-Ended Inputs | 16 |
| Analog Outputs | 8 |
| Analog Output Resolution | 16 bit |
| Maximum Analog Output Rate | 1 Мвыб/с на канал |
| Analog Output Range | ±10 V |
| Цифровой ввод-вывод | 32 bidirectional lines |
| Maximum Digital Clock Rate | 10 MHz |
| Maximum Digital Update Rate | 100 ns |
| Digital Logic Level | 3.3 V |
| Digital Signaling | Single-ended |
| Bus Type | PXI Express |
| Peer-to-Peer Streaming | Supported |
| Operating Temperature | 0°C to 55°C |
PXIe-7862 Part Number and Accessories
| Item | Part Number | Описание |
|---|---|---|
| PXIe-7862 | 786672-01 | Kintex-7 325T multifunction RIO module with 512 MB DRAM |
| SCB-68 HSDIO | 782914-01 | Shielded 68-pin connector block for high-speed digital I/O |
| SCB-68A | 782536-01 | Shielded screw-terminal I/O connector block |
| SHC68-C68-RDIO2 | 156166-02 | 2 m shielded high-speed digital I/O cable |
| SHC68M-68F-RMIO | 189588-02 | 2 m shielded cable for multifunction RIO connections |
| SHC68-NT-S | 189041-02 | 2 m shielded cable with unterminated leads |
Required cables and connector blocks depend on the analog and digital connector groups used in the application. Confirm the cable type, pinout and terminal compatibility before ordering.
Kintex-7 325T FPGA Processing
The PXIe-7862 uses a large Kintex-7 325T FPGA to execute application-specific acquisition, generation, processing and control logic directly in hardware. Its FPGA provides greater capacity than the Kintex-7 160T used in the PXIe-7861.
This additional capacity supports larger FPGA designs, more parallel signal-processing operations, complex custom protocols and multiple deterministic control loops within one module.
512 MB Onboard DRAM
The module includes 512 MB of onboard DRAM for data buffering, waveform storage and FPGA-based block processing. Acquired data can be stored temporarily before transfer to a PXI controller or compatible peer-to-peer module.
Onboard memory is valuable for long waveform records, high-throughput acquisition and applications where continuous host transfers are not practical.
16 Simultaneously Sampled Analog Inputs
The PXIe-7862 provides 16 analog input channels with dedicated 16-bit ADCs. All channels can acquire signals simultaneously at rates up to 1 Мвыб/с на канал.
The dedicated ADC architecture eliminates multiplexer delay between channels and enables independent timing, individual channel triggering and multirate sampling.
Programmable Analog Input Ranges
The analog inputs support programmable voltage ranges of ±1 V, ±2 V, ±5 V and ±10 V. Selecting the smallest suitable range helps improve measurement resolution for lower-amplitude signals.
The module supports differential and single-ended analog measurements, allowing the connection method to be selected according to grounding, noise and signal-source requirements.
Eight FPGA-Timed Analog Outputs
Eight 16-bit analog output channels provide update rates up to 1 Мвыб/с на канал over a ±10 V range. The outputs can generate simulated sensor signals, control voltages and synchronized test waveforms.
Direct FPGA control enables deterministic output responses based on analog measurements, digital events, custom calculations or application-specific triggers.
32 Bidirectional Digital I/O Lines
The PXIe-7862 provides 32 bidirectional digital I/O lines using 3.3 V single-ended signaling. Each line can be independently configured as an input or output in the FPGA application.
The digital channels support update intervals as short as 100 ns, corresponding to a maximum clock rate of 10 MHz. They can be used for control, triggering, monitoring and custom communication interfaces.
Independent Timing and Triggering
The PXIe-7862 allows timing and triggering functions to be created directly in FPGA hardware. Analog and digital channels can operate at different rates while maintaining deterministic synchronization.
This flexibility supports custom trigger qualification, event sequencing, pulse generation, multirate acquisition and low-latency closed-loop control.
PXI Peer-to-Peer Streaming
PXI peer-to-peer streaming enables the PXIe-7862 to transfer data directly to compatible PXI Express modules without routing every transfer through the host processor.
This capability can reduce latency and host processing requirements when integrating the module with digitizers, signal generators, FPGA modules and other high-performance PXI instruments.
Типичные применения
- Симуляция с аппаратным входом
- Multichannel sensor simulation
- Automotive electronic control unit testing
- High-speed closed-loop control
- Power electronics and inverter validation
- Motor control development
- Custom digital protocol implementation
- Обработка сигналов на основе ПЛИС
- Electronic device validation
- Automated production testing
LabVIEW FPGA Programming
The PXIe-7862 can be customized using the LabVIEW FPGA Module and compatible NI-RIO software. Engineers can create FPGA applications for custom measurement, waveform generation, triggering, protocol communication and control.
After compilation, the FPGA bitfile executes directly on the module, providing deterministic hardware timing without relying on the response time of the host operating system.
Connectivity and Signal Wiring
Compatible SHC68 cables and SCB-68 series connector blocks provide access to the analog and digital signals. Separate cable types are available for multifunction analog connections and high-speed digital I/O.
Use suitable shielding, grounding and cable-routing practices to minimize interference between sensitive analog measurements, digital switching signals and power wiring.
PXI Express System Integration
The PXIe-7862 requires a compatible PXI Express chassis and controller. Chassis selection should account for slot compatibility, cooling capacity, backplane bandwidth, synchronization and the power requirements of all installed modules.
Visit the NI PXI Modules category to explore related hardware for building a complete automated test system.
Troubleshooting the PXIe-7862
The module is not detected by the system
Verify that the PXIe-7862 is installed in a compatible PXI Express slot. Check the chassis controller, PXI Platform Services and NI-RIO driver installation.
The FPGA bitfile cannot be downloaded
Confirm that the bitfile was compiled specifically for the PXIe-7862. Check that the installed LabVIEW FPGA and NI-RIO versions support the module.
Analog input measurements contain excessive noise
Check the signal grounding, input configuration, shielding and cable routing. Use the smallest appropriate voltage range and keep analog cables away from high-speed digital or power wiring.
Digital signals are not recognized correctly
Confirm that the connected device uses compatible 3.3 V logic. Check the FPGA line direction, connector pin assignment and shared digital ground.
Data transfers are slower than expected
Review DMA FIFO settings, DRAM buffering, host processing load and PXI Express bandwidth. Peer-to-peer streaming may improve performance when supported modules are used.
PXIe-7862 Comparison
| Модель | ФПГА | Analog Inputs | Analog Outputs | Цифровой ввод-вывод | DRAM |
|---|---|---|---|---|---|
| PXIe-7862 | Кintex-7 325T | 16 | 8 | 32 | 512 MB |
| PXIe-7861 | Кинтекс-7 160Т | 16 | 8 | 32 | 512 MB |
| PXIe-7858 | Кintex-7 325T | 8 | 8 | 48 | 512 MB |
| PXIe-7857 | Кинтекс-7 160Т | 8 | 8 | 48 | 512 MB |
Recommended Related Products
- PXIe-7861 – 16-channel multifunction RIO module with a Kintex-7 160T FPGA
- PXIe-7858 – Kintex-7 325T module with 8 analog inputs and 48 digital I/O lines
- PXIe-7857 – Kintex-7 160T module with 8 analog inputs and 48 digital I/O lines
- PXIe-7866 – Kintex-7 325T module with 24 analog outputs for sensor simulation
- PXIe-1092 – PXI Express chassis for modular test and measurement systems
Selecting the PXIe-7862
Choose the PXIe-7862 when an application requires 16 simultaneous analog inputs, deterministic analog outputs, digital control lines, onboard DRAM and substantial FPGA processing capacity.
If the same I/O configuration is required but the FPGA design is less complex, the PXIe-7861 may provide a more economical option. If more digital channels are required instead of 16 analog inputs, consider the PXIe-7858.
PXIe-7862 vs PXIe-7861
The PXIe-7862 and PXIe-7861 both provide 16 analog inputs, 8 analog outputs, 32 bidirectional digital I/O lines, 1 MS/s analog operation and 512 MB of onboard DRAM.
The primary difference is FPGA capacity. The PXIe-7862 uses a Kintex-7 325T FPGA, while the PXIe-7861 uses a Kintex-7 160T FPGA. The PXIe-7862 is better suited to larger FPGA designs, complex custom protocols and extensive parallel processing.
Why Choose the PXIe-7862?
- Large Kintex-7 325T FPGA for demanding applications
- 16 simultaneously sampled analog inputs
- 1 MS/s analog input and output operation
- Eight deterministic analog outputs
- 32 configurable digital I/O lines
- 512 MB DRAM for waveform buffering
- Peer-to-peer streaming for PXI system integration
Frequently Asked Questions
What is the PXIe-7862 used for?
The PXIe-7862 is used for FPGA-based data acquisition, hardware-in-the-loop testing, sensor simulation, custom protocol communication and deterministic control.
Which FPGA does the PXIe-7862 use?
It uses a user-programmable Kintex-7 325T FPGA.
How many analog channels does the PXIe-7862 provide?
The module provides 16 analog input channels and 8 analog output channels, all with 16-bit resolution.
What is the maximum analog sampling rate?
The analog inputs can acquire signals simultaneously at rates up to 1 MS/s per channel. The analog outputs also support update rates up to 1 MS/s.
How much onboard memory does the PXIe-7862 provide?
The module includes 512 MB of onboard DRAM.
How many digital I/O lines are available?
The PXIe-7862 provides 32 bidirectional, 3.3 V digital I/O lines with a maximum clock rate of 10 MHz.
What is the difference between the PXIe-7862 and PXIe-7861?
The PXIe-7862 uses a larger Kintex-7 325T FPGA, while the PXIe-7861 uses a Kintex-7 160T FPGA. Their principal analog, digital and DRAM configurations are otherwise similar.
Does the PXIe-7862 support peer-to-peer streaming?
Yes. It supports direct data streaming to compatible PXI Express modules.
What is the PXIe-7862 part number?
The standard NI part number for the PXIe-7862 is 786672-01.
Request a Quote for the PXIe-7862
Contact us for current availability, lead time and project pricing for the PXIe-7862 Multifunction Reconfigurable I/O Module. We can also help confirm compatible PXI chassis, controllers, cables and terminal accessories for your application.
