The NI-5751B is a Digitizer Adapter Module for FlexRIO from National Instruments, designed for multi-channel analog signal acquisition, real-time data processing, high-speed data streaming, and FPGA-based PXI measurement systems. When combined with a compatible PXI FPGA Module or Controller for FlexRIO, the NI-5751B creates a high-speed digitizer that can simultaneously sample 16 analog input channels at 50 MS/s. This module features 16 channels, 14-bit resolution, 50 MS/s sampling, and Kintex-7 FPGA support, making it suitable for applications that require synchronized multi-channel acquisition and real-time processing.
The NI-5751B Digitizer Adapter Module is built for users who need more flexibility than a fixed-function digitizer. By working with FlexRIO FPGA hardware, the NI-5751B allows engineers to implement custom signal processing, triggering, filtering, data reduction, and streaming functions directly in FPGA logic. This FPGA-based architecture is useful for advanced test systems where real-time performance, customized algorithms, and high data throughput are important.
The National Instruments NI-5751B can simultaneously acquire 16 analog channels at 50 MS/s, making it suitable for applications that require parallel signal capture across multiple channels. This capability is useful for phased-array systems, ultrasonic acquisition, radar research, multi-channel waveform digitization, physics experiments, and automated validation systems. Because the module works with high-performance A/D converters, it can support real-time analog data processing and streaming in demanding measurement environments.
In system integration, the NI-5751B must be paired with a compatible FlexRIO FPGA module or FlexRIO controller. This combination allows users to build a customized PXI-based digitizer instead of relying on a standard standalone instrument. Engineers can use the FPGA to process acquired analog data in real time, reduce the amount of data transferred to the host computer, and improve overall system efficiency.
The NI-5751B FlexRIO Adapter Module is ideal for applications that require in-line data processing, high data streaming rates, and deployed high-performance solutions. It can be used in laboratory research, production test platforms, high-speed measurement systems, embedded signal processing, and custom PXI measurement systems. NI describes FlexRIO as a platform that combines user-programmable FPGAs with high-performance analog, digital, and RF I/O, allowing engineers to build reconfigurable instruments without designing custom hardware.
The National Instruments NI-5751B is especially useful when a system requires both high channel density and FPGA-based processing. Compared with lower-channel digitizer adapter modules, the NI-5751B provides more simultaneous input channels, making it suitable for applications where multiple analog signals must be captured at the same time. Its 14-bit resolution provides a balance between sampling speed and measurement detail for multi-channel acquisition tasks.
Overall, the NI-5751B Digitizer Adapter Module for FlexRIO is a flexible multi-channel digitizer adapter for users who need 16-channel analog input, 14-bit resolution, 50 MS/s simultaneous sampling, and FPGA-based real-time processing. With its FlexRIO architecture, high-performance A/D converters, and support for in-line processing and high-speed data streaming, the NI-5751B is well suited for advanced data acquisition, signal analysis, waveform digitization, and custom PXI test applications.
