The PXIe-5763 is a four-channel, 16-bit PXI FlexRIO digitizer designed for wide-dynamic-range signal acquisition and real-time FPGA processing. It simultaneously samples all four analog input channels at 500 MS/s and provides 225 MHz analog bandwidth.
The PXIe-5763 is available with AC- or DC-coupled inputs and a choice of Xilinx Kintex UltraScale KU035, KU040 or KU060 FPGAs. It supports finite and continuous streaming and is suitable for radar prototyping, LIDAR, communications, microscopy, optical coherence tomography, event detection and particle physics.
Key Features of the PXIe-5763
- Four simultaneously sampled analog input channels
- 500 MS/s sampling rate per channel
- 16-bit analog-to-digital resolution
- 225 MHz analog input bandwidth
- Over 73 dBFS SNR on supported AC-coupled measurements
- AC- and DC-coupled hardware configurations
- Approximately 2 Vpk-pk full-scale input range
- 50 Ω analog input impedance
- Four SMA analog input connectors
- Kintex UltraScale KU035, KU040 or KU060 FPGA options
- 4 GB onboard DRAM on KU040 and KU060 configurations
- Eight bidirectional single-ended digital I/O channels
- High-speed serial transceivers on KU040 and KU060 models
- PCI Express Gen 3 x8 interface
- 59 DMA channels
- NI-TClk multidevice synchronization
- Support for peer-to-peer data streaming
PXIe-5763 Technical Specifications
| Product Model | PXIe-5763 |
|---|---|
| Product Type | PXI FlexRIO Digitizer |
| Analog Input Channels | 4, simultaneously sampled |
| Input Type | Single-ended |
| Analog Connectors | SMA |
| Sample Rate | 500 MS/s per channel |
| ADC Resolution | 16 bits |
| ADC | Texas Instruments ADS54J69 |
| AC-Coupled Bandwidth | 70 kHz to 225 MHz |
| DC-Coupled Bandwidth | DC to 225 MHz |
| AC-Coupled Full-Scale Range | 2.03 Vpk-pk at 10 MHz |
| DC-Coupled Full-Scale Range | 1.97 Vpk-pk |
| Input Impedance | 50 Ω |
| Input Coupling | AC or DC, depending on the selected configuration |
| Maximum Typical SNR | 73.7 dBFS |
| Maximum Typical ENOB | 11.9 bits |
| FPGA Options | Xilinx Kintex UltraScale KU035, KU040 or KU060 |
| Onboard DRAM | None on KU035; 4 GB on KU040 and KU060 |
| Digital I/O | 8 bidirectional single-ended channels |
| Digital Voltage Families | 1.2 V, 1.5 V, 1.8 V, 2.5 V and 3.3 V |
| Maximum Digital Output Toggle Rate | 60 MHz nominal with a 100 μA load |
| High-Speed Serial I/O | 4 transmit and 4 receive channels on KU040 and KU060 models |
| Serial Data Rate | 500 Mb/s to 16.375 Gb/s nominal |
| Bus Interface | PCI Express Gen 3 x8 |
| Maximum Power Requirement | 58 W |
| Operating Temperature | 0°C to 55°C with sufficient chassis slot cooling |
| Dimensions | 2.0 cm × 13.0 cm × 21.6 cm, excluding connectors |
| Weight | 500 g |
PXIe-5763 Part Numbers and Configurations
| Part Number | Coupling | FPGA | DRAM | Bandwidth |
|---|---|---|---|---|
| 785160-01 | AC | Kintex UltraScale KU035 | None | 225 MHz |
| 785161-01 | AC | Kintex UltraScale KU040 | 4 GB | 225 MHz |
| 785162-01 | AC | Kintex UltraScale KU060 | 4 GB | 225 MHz |
| 785163-01 | DC | Kintex UltraScale KU035 | None | 225 MHz |
| 785164-01 | DC | Kintex UltraScale KU040 | 4 GB | 225 MHz |
| 785165-01 | DC | Kintex UltraScale KU060 | 4 GB | 225 MHz |
Every PXIe-5763 configuration provides four analog channels, simultaneous 500 MS/s sampling and 16-bit resolution. Input coupling, FPGA size, onboard memory and high-speed serial connectivity are the primary differences between part numbers.
Four Simultaneously Sampled Channels
The PXIe-5763 samples all four input channels simultaneously at 500 MS/s. This architecture preserves the phase and timing relationships between signals, making it suitable for synchronized waveform analysis, multichannel transient recording and sensor-array measurements.
The module uses a fixed 500 MS/s ADC sampling rate. Applications requiring a lower effective rate can implement decimation and digital filtering in the FPGA before transferring data to the host.
225 MHz Analog Bandwidth
AC-coupled PXIe-5763 configurations provide a −3 dB bandwidth from approximately 70 kHz to 225 MHz. These versions are appropriate for frequency-domain measurements and applications where the DC component is not required.
DC-coupled configurations provide bandwidth from DC to 225 MHz. They are better suited for time-domain measurements, pulses, transients and signals containing low-frequency or DC information.
The upper bandwidth of the DC-coupled signal path is limited by the ADC decimation filter.
16-Bit Wide-Dynamic-Range Acquisition
The 16-bit ADC architecture provides greater amplitude resolution than typical 8-bit or 12-bit high-speed digitizers. The AC-coupled PXIe-5763 can deliver a typical SNR of up to 73.7 dBFS and an effective number of bits of up to 11.9 under specified measurement conditions.
This combination of resolution, bandwidth and sampling speed helps engineers detect smaller signal components in the presence of larger signals and improves measurement quality in demanding time- and frequency-domain applications.
AC-Coupled and DC-Coupled Versions
The PXIe-5763 is manufactured with either an AC-coupled or DC-coupled analog path. Input coupling is determined by the selected part number and cannot be changed through software.
- Choose AC coupling for communications, spectral analysis, radar and other frequency-domain applications.
- Choose DC coupling for pulses, transient events, scientific measurements and signals extending to DC.
Confirm the required coupling type before ordering because each module contains only one analog input path.
Kintex UltraScale FPGA Options
The PXIe-5763 is available with three Xilinx Kintex UltraScale FPGA configurations. The FPGA can perform custom triggering, signal processing, data reduction and deterministic control directly on the module.
| FPGA | Lookup Tables | DSP48 Slices | Block RAM | External DRAM |
|---|---|---|---|---|
| KU035 | 203,128 | 1,700 | 19.0 Mb | None |
| KU040 | 242,200 | 1,920 | 21.1 Mb | 4 GB |
| KU060 | 331,680 | 2,760 | 38.0 Mb | 4 GB |
The KU035 is suitable for less complex FPGA designs that do not require external memory. The KU040 adds more FPGA resources, 4 GB DRAM and multi-gigabit serial connectivity. The KU060 provides the largest resource set for demanding filters, FFT processing and multichannel real-time algorithms.
Onboard DRAM and High-Speed Streaming
KU040 and KU060 models include 4 GB of onboard DRAM arranged as two 2 GB banks. The memory provides a maximum theoretical aggregate data rate of 17 GB/s and can be used for buffering, waveform storage and FPGA processing.
The PCI Express Gen 3 x8 interface supports high-throughput data transfer to the PXI controller. The module provides 59 DMA channels and supports finite acquisition, continuous streaming and peer-to-peer transfers between compatible PXI Express devices.
Digital I/O and Serial Transceivers
The digital I/O connector provides eight bidirectional single-ended channels. Direction can be controlled independently for each line, and supported voltage families include 1.2 V, 1.5 V, 1.8 V, 2.5 V and 3.3 V.
KU040 and KU060 versions also provide four transmit and four receive multi-gigabit transceiver channels. These serial channels support nominal data rates between 500 Mb/s and 16.375 Gb/s. MGT connectivity is not available on KU035 configurations.
Clocking and Synchronization
The PXIe-5763 can use its onboard reference, the PXI 10 MHz backplane clock or an external 10 MHz reference. An external 1 GHz sample clock can also be supplied through the front-panel CLK/REF IN connector, resulting in a 500 MS/s ADC rate.
NI-TClk can synchronize multiple supported modules through the PXI backplane. Identical PXIe-5763 modules can achieve measured intermodule skew of 10 ps or less after manual adjustment under the specified operating conditions.
FPGA-Based Signal Processing
Using LabVIEW FPGA and the Instrument Design Libraries for FlexRIO, engineers can create custom measurement functions that operate directly on acquired data.
- Digital downconversion
- Finite impulse response filtering
- Fast Fourier transform processing
- Frequency channelization
- Pulse and event detection
- Custom triggering
- Decimation and data reduction
- Spectral analysis
- Real-time averaging
- Deterministic data streaming
Processing data in the FPGA can reduce host-processor load and PCI Express traffic while providing predictable, low-latency responses.
Typical PXIe-5763 Applications
- Radar prototyping
- LIDAR signal acquisition
- Communications research
- Spectrum monitoring
- Optical coherence tomography
- Microscopy and medical imaging
- Particle physics experiments
- Ultrasonic measurement
- High-speed event detection
- Multichannel transient recording
- FPGA-based signal processing
- Custom automated test systems
Software Support
The PXIe-5763 is supported by the NI FlexRIO driver and LabVIEW Instrument Design Libraries for FlexRIO. These libraries provide interfaces, documentation and sample projects for controlling the digitizer and developing customized FPGA functions.
- NI FlexRIO driver
- LabVIEW
- LabVIEW FPGA Module
- Instrument Design Libraries for FlexRIO
- NI-TClk synchronization driver
Verify operating-system, LabVIEW, LabVIEW FPGA and FlexRIO driver compatibility before installing the module in an existing system.
PXI Express Chassis Requirements
The PXIe-5763 requires a compatible PXI Express chassis, system controller and Gen 3 x8-capable slot. The selected chassis slot must provide at least 58 W of cooling capacity.
Large FPGA designs can increase power consumption. Use appropriate chassis fan settings, slot blockers and filler panels to maintain airflow around the module.
Browse compatible NI PXI modules and system components when configuring a complete acquisition platform.
PXIe-5763 Troubleshooting
Why is the signal’s DC component missing?
Verify the part number of the installed module. AC-coupled configurations block DC and frequencies below approximately 70 kHz. A DC-coupled PXIe-5763 is required for signals extending to DC.
Why does the module always sample at 500 MS/s?
The PXIe-5763 uses a fixed 500 MS/s ADC rate. Implement FPGA-based decimation when the application requires a lower effective sample rate or reduced data throughput.
Why is the measured amplitude incorrect?
Confirm that the source, cable and termination are compatible with the module’s 50 Ω input. Also verify that the signal remains within the approximately 2 Vpk-pk full-scale range.
Why is onboard DRAM unavailable?
KU035 configurations do not include external DRAM. Select a KU040 or KU060 version when the FPGA design requires 4 GB of onboard memory.
Why are the MGT serial channels unavailable?
High-speed serial transceivers are available only on KU040 and KU060 configurations. They are not supported on the KU035 model.
Why does the module revert to its default FPGA personality?
A large FPGA design operating at a high clock frequency can exceed the available slot power. Confirm the chassis cooling capacity and optimize the FPGA design if necessary.
Why are synchronized modules showing timing differences?
Use NI-TClk, common reference clocks and identical acquisition settings. Allow the system to reach a stable temperature and perform the required synchronization adjustments.
PXIe-5763 Comparison
| Model | Channels | Maximum Sample Rate | Resolution | Bandwidth | Primary Difference |
|---|---|---|---|---|---|
| PXIe-5763 | 4 | 500 MS/s | 16-bit | 225 MHz | High dynamic range with four simultaneous channels |
| PXIe-5764 | 4 | 1 GS/s | 16-bit | Up to 1.15 GHz small signal | Higher sampling rate and wider analog bandwidth |
| PXIe-5774 | 2 | 6.4 GS/s interleaved | 12-bit | Up to 3 GHz | High-speed DC-coupled time-domain acquisition |
| PXIe-5775 | 2 | 6.4 GS/s interleaved | 12-bit | 6 GHz | High-bandwidth AC-coupled frequency-domain acquisition |
| PCIe-5763 | 4 | 500 MS/s | 16-bit | 225 MHz | Similar acquisition performance for desktop PCI Express systems |
Recommended Related Products
- PXIe-5764 – Recommended when four-channel 16-bit acquisition requires a 1 GS/s sampling rate or wider analog bandwidth.
- PXIe-5774 – Suitable for high-speed DC-coupled time-domain measurements requiring bandwidth up to 3 GHz.
- PXIe-5775 – Designed for AC-coupled frequency-domain applications requiring bandwidth up to 6 GHz.
- PCIe-5763 – Provides similar four-channel acquisition and FPGA processing in a PCI Express card format.
How to Select the Right PXIe-5763 Configuration
- Choose an AC-coupled model for radar, communications and frequency-domain signals without a required DC component.
- Choose a DC-coupled model for transient measurements and signals extending to DC.
- Choose the KU035 for less resource-intensive FPGA designs that do not require external DRAM.
- Choose the KU040 when 4 GB DRAM and high-speed serial connectivity are required.
- Choose the KU060 for complex filtering, FFT processing, channelization and other demanding algorithms.
Why Choose the PXIe-5763?
The PXIe-5763 combines four simultaneously sampled 500 MS/s channels, 16-bit resolution, 225 MHz bandwidth and a programmable Kintex UltraScale FPGA. It provides an effective balance between acquisition speed, dynamic range, channel density and real-time processing capacity.
Its multiple FPGA and coupling configurations allow engineers to select hardware that closely matches the application without paying for unnecessary processing resources.
Frequently Asked Questions
What is the PXIe-5763?
The PXIe-5763 is a four-channel, 16-bit PXI FlexRIO digitizer that simultaneously samples every analog channel at 500 MS/s and provides 225 MHz bandwidth.
Are all four channels sampled simultaneously?
Yes. All four analog input channels are sampled simultaneously at 500 MS/s.
What is the input impedance?
The PXIe-5763 provides a fixed 50 Ω input impedance on each analog channel.
Can AC and DC coupling be selected through software?
No. AC and DC coupling are separate hardware configurations identified by different part numbers.
Does every configuration include 4 GB of DRAM?
No. KU040 and KU060 configurations include 4 GB of DRAM. KU035 configurations do not include onboard DRAM.
Does the PXIe-5763 have a programmable FPGA?
Yes. It is available with a Xilinx Kintex UltraScale KU035, KU040 or KU060 FPGA.
Can multiple PXIe-5763 modules be synchronized?
Yes. NI-TClk and PXI backplane timing resources can synchronize multiple supported modules.
What is the difference between the PXIe-5763 and PXIe-5764?
The PXIe-5763 provides 500 MS/s sampling and 225 MHz bandwidth. The PXIe-5764 increases the sampling rate to 1 GS/s and offers wider bandwidth, including up to 1.15 GHz small-signal bandwidth on AC-coupled models.
Can the PXIe-5763 operate independently?
No. It requires a compatible PXI Express chassis, system controller, driver and development software.
Request a Quote for the PXIe-5763
Contact us for current availability, lead time and project pricing for the PXIe-5763 PXI FlexRIO Digitizer. Please provide the required input coupling, FPGA option and part number so we can verify the correct configuration.
