The National Instruments PXI-5114 is a digitizer card for PXI systems. It provides two analog input channels with 8 bit resolution and 250 MS/s sampling. The card is designed for high speed signal acquisition, electronic validation, automated test, and research applications that require waveform capture in a modular instrument platform.
Digitizers convert analog waveforms into digital data for analysis. The PXI-5114 brings oscilloscope like acquisition to the PXI platform. Engineers can capture transient events, measure signal quality, and analyze frequency content using software.
Two Channel High Speed Acquisition
The PXI-5114 provides two analog input channels. The 250 MS/s sampling rate supports capture of fast signals and transients. The 8 bit resolution is suitable for general waveform analysis. Engineers should configure input range, coupling, and trigger settings for the signal.
Proper probes and cabling are important for signal integrity. Calibration and verification help maintain accuracy.
Triggering and Data Capture
The digitizer supports triggering for capturing events at the right time. Engineers can use edge, window, and other trigger modes. Triggering helps capture transients, pulses, and repetitive waveforms. Data can be stored in onboard memory and transferred to the host.
PXI Integration
The PXI-5114 operates in compatible PXI chassis. It can be combined with controllers, signal generators, switches, and DAQ modules. The PXI backplane supports timing and triggering for multi instrument coordination.
Software and Analysis
The card is controlled through NI software and standard programming environments. Engineers can configure acquisition, triggers, and data transfer. Software can perform frequency analysis, amplitude measurement, and waveform characterization.
Applications
The PXI-5114 is suited to electronic validation, automated test, transient capture, signal integrity analysis, and research. It supports high speed waveform capture in a PXI system.
Installation and Maintenance
Installation requires a compatible PXI slot, proper cabling, and a test fixture designed for the signal frequency and amplitude. The chassis should provide adequate cooling and power.
Maintenance includes calibration, connector inspection, and verification of acquisition settings. Documentation helps troubleshooting.
Summary
The National Instruments PXI-5114 Digitizer Card provides two channel 8 bit acquisition at 250 MS/s for PXI systems. It supports high speed waveform capture, automated test, and electronic validation. The PXI-5114 is a practical digitizer for engineers who need modular high speed signal acquisition.
