{"id":30480,"date":"2025-09-28T13:18:02","date_gmt":"2025-09-28T05:18:02","guid":{"rendered":"https:\/\/pxisource.com\/?post_type=product&#038;p=30480"},"modified":"2026-08-30T22:48:40","modified_gmt":"2026-08-30T14:48:40","slug":"pxi-5142","status":"publish","type":"product","link":"https:\/\/pxisource.com\/ru\/product\/pxi-5142\/","title":{"rendered":"PXI-5142"},"content":{"rendered":"<h3>PXI-5142 14-Bit 100 MS\/s Digitizer with Onboard Signal Processing<\/h3>\n<p>\u0417\u0435\u043c\u043b\u044f <strong>NI PXI-5142<\/strong> is a two-channel, 14-bit PXI digitizer designed for communications measurements, intermediate-frequency signal acquisition and high-resolution time-domain or frequency-domain analysis. It provides real-time sampling at up to 100 MS\/s, analog bandwidth up to 100 MHz and onboard signal processing for digital downconversion, decimation and baseband I\/Q filtering.<\/p>\n<p>The PXI-5142 can operate as a standalone high-resolution oscilloscope or as the digitizer component of an RF signal analyzer. When combined with the <a href=\"https:\/\/pxisource.com\/ru\/product\/pxi-5600\/\">PXI-5600 RF downconverter<\/a>, it forms part of the <a href=\"https:\/\/pxisource.com\/ru\/product\/pxi-5661\/\">PXI-5661 vector signal analyzer<\/a> architecture.<\/p>\n<h3>Key Features of the PXI-5142<\/h3>\n<ul>\n<li>Two simultaneously sampled analog input channels<\/li>\n<li>14-bit vertical resolution<\/li>\n<li>100 MS\/s real-time sampling rate<\/li>\n<li>Up to 2 GS\/s random-interleaved sampling for repetitive signals<\/li>\n<li>Up to 100 MHz analog bandwidth<\/li>\n<li>Onboard digital signal processing<\/li>\n<li>Onboard digital downconversion<\/li>\n<li>Real and complex I\/Q acquisition modes<\/li>\n<li>Programmable decimation and baseband filtering<\/li>\n<li>Alias-protected baseband I\/Q processing<\/li>\n<li>Input ranges from 200 mVpp to 20 Vpp<\/li>\n<li>50 \u03a9 or 1 M\u03a9 selectable input impedance<\/li>\n<li>AC, DC and ground coupling<\/li>\n<li>Selectable analog noise and antialias filters<\/li>\n<li>64 MB or 256 MB memory per channel<\/li>\n<li>Pretrigger and post-trigger acquisition<\/li>\n<li>Multiple-record waveform acquisition<\/li>\n<li>Advanced analog and digital triggering<\/li>\n<li>PXI reference-clock synchronization<\/li>\n<li>NI-TClk multimodule synchronization<\/li>\n<li>Built-in self-calibration<\/li>\n<li>NI-SCOPE driver support<\/li>\n<\/ul>\n<h3>PXI-5142 Technical Specifications<\/h3>\n<table>\n<tbody>\n<tr>\n<th>Product Model<\/th>\n<td>PXI-5142<\/td>\n<\/tr>\n<tr>\n<th>Product Type<\/th>\n<td>PXI high-resolution digitizer with onboard signal processing<\/td>\n<\/tr>\n<tr>\n<th>Analog Input Channels<\/th>\n<td>2, simultaneously sampled<\/td>\n<\/tr>\n<tr>\n<th>Vertical Resolution<\/th>\n<td>14 bits<\/td>\n<\/tr>\n<tr>\n<th>Maximum Real-Time Sample Rate<\/th>\n<td>100 MS\/s<\/td>\n<\/tr>\n<tr>\n<th>Maximum Random-Interleaved Sample Rate<\/th>\n<td>2 GS\/s for repetitive signals<\/td>\n<\/tr>\n<tr>\n<th>Maximum Analog Bandwidth<\/th>\n<td>100 MHz<\/td>\n<\/tr>\n<tr>\n<th>Input Type<\/th>\n<td>Referenced single-ended<\/td>\n<\/tr>\n<tr>\n<th>Input Impedance<\/th>\n<td>50 \u03a9 or 1 M\u03a9<\/td>\n<\/tr>\n<tr>\n<th>Input Voltage Ranges<\/th>\n<td>200 mVpp to 20 Vpp<\/td>\n<\/tr>\n<tr>\n<th>Input Coupling<\/th>\n<td>AC, DC or ground, depending on impedance selection<\/td>\n<\/tr>\n<tr>\n<th>Analog Filtering<\/th>\n<td>Full-bandwidth, noise-filter and antialias-filter configurations<\/td>\n<\/tr>\n<tr>\n<th>Onboard Processing<\/th>\n<td>Digital downconversion, decimation and baseband filtering<\/td>\n<\/tr>\n<tr>\n<th>Processing Output Modes<\/th>\n<td>Real or complex I\/Q data<\/td>\n<\/tr>\n<tr>\n<th>Baseband Alias Protection<\/th>\n<td>Integrated digital filtering<\/td>\n<\/tr>\n<tr>\n<th>Onboard Memory Options<\/th>\n<td>64 MB or 256 MB per channel<\/td>\n<\/tr>\n<tr>\n<th>Maximum Records<\/th>\n<td>Up to 100,000 records, depending on memory and record length<\/td>\n<\/tr>\n<tr>\n<th>Trigger Types<\/th>\n<td>Edge, window, hysteresis, video, digital, immediate and software<\/td>\n<\/tr>\n<tr>\n<th>Trigger Sources<\/th>\n<td>Analog channels, front-panel trigger, PXI trigger lines and software<\/td>\n<\/tr>\n<tr>\n<th>Internal Sample Clock<\/th>\n<td>100 MHz voltage-controlled crystal oscillator<\/td>\n<\/tr>\n<tr>\n<th>Reference Clock<\/th>\n<td>PXI 10 MHz reference or supported external reference clock<\/td>\n<\/tr>\n<tr>\n<th>Front-Panel Analog Connectors<\/th>\n<td>2 \u00d7 BNC<\/td>\n<\/tr>\n<tr>\n<th>External Trigger Connector<\/th>\n<td>BNC<\/td>\n<\/tr>\n<tr>\n<th>Clock Connections<\/th>\n<td>Front-panel clock input and output<\/td>\n<\/tr>\n<tr>\n<th>Self-Calibration<\/th>\n<td>Gain, offset, frequency response, trigger and timing calibration<\/td>\n<\/tr>\n<tr>\n<th>External Calibration Interval<\/th>\n<td>2 years<\/td>\n<\/tr>\n<tr>\n<th>Recommended Warm-Up Time<\/th>\n<td>15 minutes<\/td>\n<\/tr>\n<tr>\n<th>Software Driver<\/th>\n<td>NI-SCOPE<\/td>\n<\/tr>\n<tr>\n<th>\u0428\u0438\u043d\u043d\u044b\u0439 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441<\/th>\n<td>PXI; compatible with supported PXI Express hybrid slots<\/td>\n<\/tr>\n<tr>\n<th>Module Format<\/th>\n<td>3U, one-slot PXI module<\/td>\n<\/tr>\n<tr>\n<th>Operating Temperature<\/th>\n<td>0\u00b0C to 45\u00b0C<\/td>\n<\/tr>\n<tr>\n<th>Storage Temperature<\/th>\n<td>\u221240\u00b0C to 71\u00b0C<\/td>\n<\/tr>\n<tr>\n<th>Dimensions<\/th>\n<td>Approximately 21.6 \u00d7 2.0 \u00d7 13.0 cm<\/td>\n<\/tr>\n<tr>\n<th>Weight<\/th>\n<td>Approximately 459 g<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>PXI-5142 Part Numbers and Memory Options<\/h3>\n<table>\n<tbody>\n<tr>\n<th>Product Configuration<\/th>\n<th>Part Number<\/th>\n<th>Onboard Memory<\/th>\n<\/tr>\n<tr>\n<td>PXI-5142 Standard Memory<\/td>\n<td>779587-01<\/td>\n<td>64 MB per channel<\/td>\n<\/tr>\n<tr>\n<td>PXI-5142 Extended Memory<\/td>\n<td>779587-02<\/td>\n<td>256 MB per channel<\/td>\n<\/tr>\n<tr>\n<td>PXI-5600 RF Downconverter<\/td>\n<td>Configuration dependent<\/td>\n<td>RF downconverter used with the PXI-5142 in PXI-5661 systems<\/td>\n<\/tr>\n<tr>\n<td>50 \u03a9 BNC Cable<\/td>\n<td>Configuration dependent<\/td>\n<td>Coaxial cable for high-frequency and IF signal connections<\/td>\n<\/tr>\n<tr>\n<td>Clock Cable<\/td>\n<td>Configuration dependent<\/td>\n<td>Cable for external sample-clock or reference-clock synchronization<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The PXI-5142 is available with either 64 MB or 256 MB of memory per channel. Both versions provide the same fundamental sampling, resolution, bandwidth and onboard-processing capabilities.<\/p>\n<h3>Two Simultaneously Sampled Inputs<\/h3>\n<p>The PXI-5142 provides two independent 14-bit analog input channels that sample simultaneously. This preserves the phase relationship between signals and enables synchronized acquisition of I and Q baseband inputs.<\/p>\n<p>Simultaneous sampling is also useful for comparing a stimulus and response, measuring propagation delay or analyzing two related communication signals.<\/p>\n<h3>14-Bit Vertical Resolution<\/h3>\n<p>The 14-bit ADC provides 16,384 theoretical amplitude levels across the selected range. This high resolution helps identify low-level components in both time-domain waveforms and frequency-domain spectra.<\/p>\n<p>Compared with an 8-bit oscilloscope, the PXI-5142 provides 64 times more theoretical quantization levels. Actual performance also depends on noise, distortion, range and input frequency.<\/p>\n<h3>100 MS\/s Real-Time Sampling<\/h3>\n<p>The module samples at rates up to 100 MS\/s in conventional oscilloscope mode. Real-time acquisition captures a complete waveform from one occurrence without requiring it to repeat.<\/p>\n<p>This mode is appropriate for modulated communications signals, pulses, transients and other events that may change from one acquisition to the next.<\/p>\n<h3>2 GS\/s Random-Interleaved Sampling<\/h3>\n<p>For stable repetitive signals, random-interleaved sampling provides an effective sampling rate of up to 2 GS\/s. Samples captured from multiple repetitions are combined to produce finer time spacing.<\/p>\n<p>RIS should not be used for single-shot, burst or changing waveforms because it assumes the signal remains consistent between acquisitions.<\/p>\n<h3>100 MHz Analog Bandwidth<\/h3>\n<p>The 100 MHz analog input bandwidth supports baseband, intermediate-frequency and general-purpose electronic waveform measurements.<\/p>\n<p>Undersampling can be used for certain signals with carrier frequencies above the first Nyquist region, provided the signal bandwidth, filtering and alias position are understood and controlled.<\/p>\n<h3>Onboard Signal Processing<\/h3>\n<p>The distinguishing feature of the PXI-5142 is its onboard signal-processing block. The module can digitally downconvert and filter the acquired signal before transferring data to the PXI controller.<\/p>\n<p>Onboard processing reduces the amount of data that must cross the PXI bus when only a narrow portion of the input spectrum is required. This enables longer acquisitions and reduces host-processor workload.<\/p>\n<h3>Digital Downconversion<\/h3>\n<p>The digital downconverter translates a selected intermediate-frequency band to baseband. A numerically controlled oscillator provides the digital mixing frequency, while onboard filters isolate the desired bandwidth.<\/p>\n<p>The output can be returned as complex I\/Q samples for modulation and vector-signal analysis. This eliminates the need to transfer the complete 100 MS\/s waveform when the signal of interest occupies a much narrower bandwidth.<\/p>\n<h3>Real and Complex I\/Q Modes<\/h3>\n<p>In real mode, onboard processing returns a decimated real-valued waveform. In complex mode, the PXI-5142 generates in-phase and quadrature data representing both amplitude and phase.<\/p>\n<p>Complex I\/Q data is used to analyze digitally modulated signals, frequency translation, phase behavior and communications parameters.<\/p>\n<h3>Programmable Decimation<\/h3>\n<p>Decimation reduces the output sample rate after the signal has been digitally filtered. The process retains the selected baseband information while reducing the number of samples transferred and stored.<\/p>\n<p>Lower output rates allow longer acquisition times. For example, the 256 MB version can record substantially longer waveforms in processed modes than when storing full-rate 100 MS\/s data.<\/p>\n<h3>Alias-Protected Baseband Filtering<\/h3>\n<p>Digital filters provide alias protection before the processed sample rate is reduced. The passband contains the desired real or complex signal, while out-of-band frequency components are attenuated.<\/p>\n<p>The requested I\/Q rate and analysis bandwidth should be selected according to the occupied bandwidth and transition-band requirements of the measured signal.<\/p>\n<h3>64 MB and 256 MB Memory Options<\/h3>\n<p>The PXI-5142 offers 64 MB or 256 MB of onboard memory per channel. In full-rate mode, the larger version provides a longer uninterrupted acquisition window.<\/p>\n<p>When onboard decimation is enabled, the reduced output data rate further increases the total acquisition duration available from the installed memory.<\/p>\n<h3>Multiple-Record Acquisition<\/h3>\n<p>The module supports multiple-record acquisition for capturing repeated signal events without recording long inactive intervals. Up to 100,000 records can be stored under supported memory and record-length conditions.<\/p>\n<p>This mode is useful for communications bursts, radar pulses, switching events and other signals that occur intermittently.<\/p>\n<h3>Pretrigger and Post-Trigger Capture<\/h3>\n<p>Pretrigger samples record the waveform before the trigger condition. Post-trigger samples capture the event after the trigger, and the trigger position can be configured within the acquisition record.<\/p>\n<p>Pretrigger acquisition is helpful for determining what caused an abnormal communications burst, transient or device failure.<\/p>\n<h3>Advanced Triggering<\/h3>\n<p>The PXI-5142 supports edge, window, hysteresis, video, digital, immediate and software triggering. Analog channels, external connectors and PXI trigger lines can be used as trigger sources.<\/p>\n<p>Window triggering detects when a signal enters or leaves a voltage band. Hysteresis improves stability when noise is present near the trigger threshold.<\/p>\n<h3>50 \u03a9 Input Impedance<\/h3>\n<p>The 50 \u03a9 input path is optimized for RF, IF and communications signal sources. Matching the source, cable and input impedance reduces reflections and provides improved signal integrity.<\/p>\n<p>Observe the voltage and power limits of the internal termination. Excessive input power can damage the digitizer.<\/p>\n<h3>1 M\u03a9 Input Impedance<\/h3>\n<p>The 1 M\u03a9 input path minimizes loading on high-impedance circuits and supports conventional passive probes. Input capacitance, probe capacitance and source impedance should be considered at higher frequencies.<\/p>\n<p>Use short, compensated connections when measuring fast electronic waveforms through the high-impedance path.<\/p>\n<h3>Flexible Input Ranges<\/h3>\n<p>Input ranges from 200 mVpp to 20 Vpp allow the PXI-5142 to measure low-amplitude IF signals and higher-voltage electronic waveforms. Each input channel can be configured independently.<\/p>\n<p>Select the smallest range that safely contains the signal, including DC offset, noise and transient peaks, to maximize use of the 14-bit ADC.<\/p>\n<h3>Analog Noise and Antialias Filters<\/h3>\n<p>Selectable analog filtering helps reduce out-of-band noise before the signal reaches the ADC. The noise filter provides more than 20 dB of attenuation at 100 MHz and is useful for lower-frequency measurements.<\/p>\n<p>The antialias configuration limits unwanted frequency content that could fold into the acquisition band. For digital downconversion, additional alias protection is provided by the onboard processing filters.<\/p>\n<h3>PXI-5600 RF Downconverter Integration<\/h3>\n<p>The PXI-5142 can receive an intermediate-frequency waveform from the PXI-5600 RF downconverter. The PXI-5600 translates an RF signal to an IF suitable for digitization and onboard processing.<\/p>\n<p>Together, these modules form the measurement hardware used in the PXI-5661 vector signal analyzer. The system supports RF spectrum, modulation and vector-signal analysis within the limits of the complete configuration.<\/p>\n<h3>Standalone Digitizer Operation<\/h3>\n<p>The PXI-5142 does not require an RF downconverter for ordinary waveform acquisition. It can operate as a standalone two-channel high-resolution oscilloscope for baseband, IF and electronic measurements.<\/p>\n<p>Standalone operation retains access to onboard processing, triggering, deep memory, filtering and PXI synchronization.<\/p>\n<h3>PXI Clock and Trigger Synchronization<\/h3>\n<p>The internal 100 MHz oscillator can phase lock to the PXI 10 MHz backplane reference clock or a supported external reference. PXI trigger lines coordinate acquisition with other instruments.<\/p>\n<p>Common timing resources are useful when the PXI-5142 operates with an RF downconverter, signal generator, digital waveform module or additional digitizer.<\/p>\n<h3>NI-TClk Multimodule Synchronization<\/h3>\n<p>NI-TClk aligns acquisition clocks and trigger events across compatible modular instruments. Multiple PXI-5142 modules can be combined for phase-coherent multichannel measurements.<\/p>\n<p>The module can also synchronize with an <a href=\"https:\/\/pxisource.com\/ru\/product\/pxi-5421\/\">PXI-5421 arbitrary waveform generator<\/a> to create coordinated communications stimulus-and-response systems.<\/p>\n<h3>Built-In Self-Calibration<\/h3>\n<p>Self-calibration corrects gain, offset, frequency response, triggering and timing behavior according to the current operating temperature. A 15-minute warm-up period is recommended before calibration or precision measurements.<\/p>\n<p>External calibration adjusts the onboard reference and timing source. NI specifies a two-year external calibration interval.<\/p>\n<h3>Communications Signal Measurements<\/h3>\n<p>The PXI-5142 is optimized for communications signals that require high-resolution sampling and efficient baseband processing. It can acquire modulated IF signals and return real or complex data for software analysis.<\/p>\n<p>Supported applications include GSM, W-CDMA, DVB and QAM-related measurements when the complete hardware, software and signal configuration meet the required bandwidth and performance limits.<\/p>\n<h3>Vector Signal Analysis<\/h3>\n<p>Complex I\/Q data from the onboard DDC can be processed to calculate modulation error ratio, error vector magnitude, constellation diagrams, phase error and spectral characteristics.<\/p>\n<p>NI modulation-analysis software or custom LabVIEW code can analyze the acquired I\/Q data according to the required communications standard.<\/p>\n<h3>Spectrum and Frequency-Domain Analysis<\/h3>\n<p>The 14-bit ADC and onboard processing allow the PXI-5142 to analyze narrowband portions of a wider input spectrum. Digital downconversion isolates the required signal and reduces the output data rate.<\/p>\n<p>This approach is useful for spectral monitoring, harmonic measurement, interference analysis and IF characterization.<\/p>\n<h3>Radar and Pulsed-Signal Testing<\/h3>\n<p>Multiple-record mode can capture repeated radar, sonar or communications pulses while omitting the inactive time between events. Hardware timestamps preserve the timing relationship among records.<\/p>\n<p>Deep memory and onboard processing allow long sequences of narrowband pulse data to be stored efficiently.<\/p>\n<h3>Automated Production Testing<\/h3>\n<p>The PXI-5142 integrates into automated production systems requiring waveform, spectrum or modulation measurements. Software-defined configuration allows one module to perform several types of analysis during a test sequence.<\/p>\n<p>PXI synchronization coordinates the digitizer with signal generators, switches and device-control hardware to improve test repeatability and throughput.<\/p>\n<h3>NI-SCOPE Software Support<\/h3>\n<p>The PXI-5142 is controlled through the IVI-compliant NI-SCOPE instrument driver. NI-SCOPE provides functions for configuring inputs, clocks, triggers, acquisition memory and onboard processing.<\/p>\n<p>The driver supports LabVIEW, LabWindows\/CVI, Measurement Studio and compatible C, C++ and .NET environments. A soft front panel can be used for basic waveform acquisition and hardware troubleshooting.<\/p>\n<h3>Typical PXI-5142 Applications<\/h3>\n<ul>\n<li>Intermediate-frequency signal acquisition<\/li>\n<li>Digital downconversion<\/li>\n<li>Complex I\/Q waveform acquisition<\/li>\n<li>Vector signal analysis<\/li>\n<li>Modulation-quality measurements<\/li>\n<li>GSM, W-CDMA, DVB and QAM testing<\/li>\n<li>Spectrum and harmonic analysis<\/li>\n<li>RF signal-analyzer systems<\/li>\n<li>Radar and pulsed-signal acquisition<\/li>\n<li>Communications production testing<\/li>\n<li>Baseband signal measurements<\/li>\n<li>High-resolution waveform acquisition<\/li>\n<li>\u0418\u0441\u043f\u044b\u0442\u0430\u043d\u0438\u044f \u0432 \u0430\u044d\u0440\u043e\u043a\u043e\u0441\u043c\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0438 \u043e\u0431\u043e\u0440\u043e\u043d\u043d\u043e\u0439 \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u0441\u0442\u0438<\/li>\n<li>Scientific research<\/li>\n<li>Synchronized mixed-signal systems<\/li>\n<\/ul>\n<h3>PXI-5142 Troubleshooting<\/h3>\n<h4>The PXI-5142 is not detected in NI MAX<\/h4>\n<p>Confirm that the module is fully installed in a compatible PXI or PXI Express hybrid peripheral slot. Check chassis power, controller communication and NI-SCOPE installation, then restart NI Measurement &amp; Automation Explorer.<\/p>\n<h4>The acquired waveform is clipped<\/h4>\n<p>Select a larger input range or adjust the vertical offset. Confirm that the signal, DC component and transient peaks remain within the configured range.<\/p>\n<h4>The measured amplitude is incorrect<\/h4>\n<p>Check the selected 50 \u03a9 or 1 M\u03a9 input impedance and the source termination. Verify probe attenuation and software scaling.<\/p>\n<h4>The I\/Q spectrum appears at the wrong frequency<\/h4>\n<p>Verify the digital downconverter center frequency, sample rate, decimation and external RF downconverter configuration. Confirm whether the frequency conversion uses high-side or low-side injection.<\/p>\n<h4>The processed waveform bandwidth is too narrow<\/h4>\n<p>Increase the requested I\/Q rate or reduce the decimation factor. Confirm that the selected signal lies inside the digital filter passband.<\/p>\n<h4>Aliasing appears in the processed data<\/h4>\n<p>Review the analog input filter, digital downconversion frequency and baseband bandwidth. Confirm that strong out-of-band signals are sufficiently attenuated before decimation.<\/p>\n<h4>The acquisition duration is shorter than expected<\/h4>\n<p>Check whether the module is operating in real or complex mode. Complex I\/Q samples require additional memory. Increase decimation or select the 256 MB version for longer captures.<\/p>\n<h4>The trigger is unstable<\/h4>\n<p>Verify the trigger source, level, slope, coupling and hysteresis. Confirm that the selected trigger signal crosses the threshold consistently.<\/p>\n<h4>The PXI-5600 and PXI-5142 do not operate as one analyzer<\/h4>\n<p>Confirm both modules are recognized, connected correctly and configured through compatible RF and NI-SCOPE software. Verify IF routing, reference-clock sharing and trigger configuration.<\/p>\n<h3>PXI-5142 Comparison with Similar Digitizers<\/h3>\n<table>\n<tbody>\n<tr>\n<th>\u041c\u043e\u0434\u0435\u043b\u044c<\/th>\n<th>Primary Configuration<\/th>\n<th>Best Suited For<\/th>\n<\/tr>\n<tr>\n<td>PXI-5122<\/td>\n<td>2 channels, 14-bit, 100 MS\/s, 100 MHz<\/td>\n<td>High-resolution general-purpose waveform measurements<\/td>\n<\/tr>\n<tr>\n<td>PXI-5124<\/td>\n<td>2 channels, 12-bit, 200 MS\/s, 150 MHz<\/td>\n<td>Faster and wider-bandwidth waveform acquisition<\/td>\n<\/tr>\n<tr>\n<td>PXI-5142<\/td>\n<td>2 channels, 14-bit, 100 MS\/s with onboard DDC<\/td>\n<td>Communications, IF and complex I\/Q measurements<\/td>\n<\/tr>\n<tr>\n<td>PXIe-5122<\/td>\n<td>2 channels, 14-bit, 100 MS\/s, PXI Express<\/td>\n<td>Modern high-resolution PXI Express waveform systems<\/td>\n<\/tr>\n<tr>\n<td>PXIe-5622<\/td>\n<td>16-bit, 150 MS\/s communications digitizer<\/td>\n<td>Higher-resolution PXI Express IF and RF signal analysis<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>PXI-5142 vs PXI-5122<\/h3>\n<p>The PXI-5142 and <a href=\"https:\/\/pxisource.com\/ru\/product\/pxi-5122\/\">PXI-5122<\/a> both provide two 14-bit channels, 100 MS\/s real-time sampling and approximately 100 MHz analog bandwidth.<\/p>\n<p>The PXI-5142 adds onboard digital downconversion, decimation and complex I\/Q filtering. Choose the PXI-5142 for communications and narrowband IF analysis. Select the PXI-5122 for general-purpose high-resolution oscilloscope measurements.<\/p>\n<h3>PXI-5142 vs PXI-5124<\/h3>\n<p>The PXI-5124 provides 12-bit resolution, 200 MS\/s sampling and 150 MHz bandwidth. The PXI-5142 provides higher 14-bit resolution and onboard signal processing but uses a lower 100 MS\/s real-time sampling rate.<\/p>\n<p>Choose the PXI-5142 for digital downconversion and communications measurements. Select the <a href=\"https:\/\/pxisource.com\/ru\/product\/pxi-5124\/\">PXI-5124<\/a> for faster general-purpose waveform acquisition.<\/p>\n<h3>PXI-5142 vs PXIe-5622<\/h3>\n<p>The PXIe-5622 is a newer PXI Express communications digitizer with 16-bit resolution and a higher maximum sampling rate. The PXI-5142 remains useful for maintaining existing PXI-5661 systems and legacy communications test platforms.<\/p>\n<p>Choose the PXI-5142 for compatibility with established PXI hardware and software. Consider the <a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-5622\/\">PXIe-5622<\/a> for newer systems requiring improved resolution, throughput and PXI Express connectivity.<\/p>\n<h3>Recommended Related Products<\/h3>\n<ul>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxi-5600\/\">PXI-5600 RF Downconverter<\/a><\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxi-5661\/\">PXI-5661 Vector Signal Analyzer<\/a><\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxi-5122\/\">PXI-5122 14-Bit 100 MS\/s Digitizer<\/a><\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxi-5124\/\">PXI-5124 12-Bit 200 MS\/s Digitizer<\/a><\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxi-5421\/\">PXI-5421 Arbitrary Waveform Generator<\/a><\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-5622\/\">PXIe-5622 16-Bit Communications Digitizer<\/a><\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-5663\/\">PXIe-5663 Vector Signal Analyzer<\/a><\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product-category\/%d0%bd%d0%b8\/pxi-%d1%81%d0%b8%d1%81%d1%82%d0%b5%d0%bc%d1%81\/%d0%bc%d0%be%d0%b4%d1%83%d0%bb%d0%b8-pxi\/\">View More NI PXI RF and Digitizer Modules<\/a><\/li>\n<\/ul>\n<h3>Selecting the Right Communications Digitizer<\/h3>\n<p>Choose the PXI-5142 when the application requires 14-bit resolution, 100 MS\/s acquisition and onboard digital downconversion. It is especially useful for narrowband IF, baseband I\/Q and modulation measurements.<\/p>\n<p>Select the PXI-5122 when onboard DDC is unnecessary and a general-purpose high-resolution oscilloscope is preferred. Choose the PXI-5124 when higher sampling rate and bandwidth are more important than 14-bit resolution.<\/p>\n<p>The 64 MB version is suitable for shorter waveform records. Select the 256 MB version for longer full-rate acquisitions, additional records or extended processed I\/Q captures.<\/p>\n<h3>Why Choose the PXI-5142?<\/h3>\n<ul>\n<li>Provides two simultaneously sampled 14-bit channels<\/li>\n<li>Supports real-time sampling up to 100 MS\/s<\/li>\n<li>Offers analog bandwidth up to 100 MHz<\/li>\n<li>Performs digital downconversion onboard<\/li>\n<li>Generates real or complex I\/Q data<\/li>\n<li>Provides programmable decimation and filtering<\/li>\n<li>Reduces PXI bus and host-processing requirements<\/li>\n<li>Supports up to 256 MB memory per channel<\/li>\n<li>Works with the PXI-5600 in PXI-5661 systems<\/li>\n<li>Supports PXI triggering and NI-TClk synchronization<\/li>\n<li>Integrates with NI-SCOPE and LabVIEW<\/li>\n<\/ul>\n<h3>Frequently Asked Questions<\/h3>\n<h4>What is the PXI-5142?<\/h4>\n<p>The PXI-5142 is a two-channel, 14-bit PXI digitizer with 100 MS\/s sampling, 100 MHz bandwidth and onboard digital downconversion and filtering.<\/p>\n<h4>What are the PXI-5142 part numbers?<\/h4>\n<p>Part number <strong>779587-01<\/strong> provides 64 MB per channel, while part number <strong>779587-02<\/strong> provides 256 MB per channel.<\/p>\n<h4>What is the maximum real-time sample rate?<\/h4>\n<p>The maximum real-time sampling rate is 100 MS\/s.<\/p>\n<h4>What is the analog bandwidth?<\/h4>\n<p>The PXI-5142 provides analog input bandwidth up to 100 MHz.<\/p>\n<h4>What is the vertical resolution?<\/h4>\n<p>The module uses 14-bit analog-to-digital converters, providing 16,384 theoretical amplitude levels.<\/p>\n<h4>Does the PXI-5142 include digital downconversion?<\/h4>\n<p>Yes. The onboard signal-processing block performs digital frequency translation, decimation and baseband filtering.<\/p>\n<h4>Can the PXI-5142 acquire complex I\/Q data?<\/h4>\n<p>Yes. It can return complex in-phase and quadrature samples for modulation and vector-signal analysis.<\/p>\n<h4>Can the PXI-5142 be used as a standalone oscilloscope?<\/h4>\n<p>Yes. It can operate as a standalone two-channel digitizer without the PXI-5600 RF downconverter.<\/p>\n<h4>How is the PXI-5142 used in a PXI-5661?<\/h4>\n<p>The PXI-5600 converts the RF signal to an intermediate frequency, and the PXI-5142 digitizes and processes that IF waveform.<\/p>\n<h4>Does the module support 50 \u03a9 and 1 M\u03a9 inputs?<\/h4>\n<p>Yes. The analog input channels support software-selectable 50 \u03a9 and 1 M\u03a9 input impedance.<\/p>\n<h4>Can multiple PXI-5142 modules be synchronized?<\/h4>\n<p>Yes. Multiple compatible modules can share PXI clocks and triggers through NI-TClk synchronization.<\/p>\n<h4>Which driver controls the PXI-5142?<\/h4>\n<p>The PXI-5142 is controlled through the NI-SCOPE instrument driver.<\/p>\n<h4>Can the PXI-5142 operate in a PXI Express chassis?<\/h4>\n<p>Yes. It can operate in a compatible PXI Express hybrid peripheral slot, but not in a PXI Express-only slot without the hybrid connector.<\/p>\n<h3>Request a Quote for the PXI-5142<\/h3>\n<p>Contact us for current availability, memory configuration, product condition, calibration status, lead time and project pricing for the <strong>PXI-5142 14-Bit 100 MS\/s Digitizer with Onboard Signal Processing<\/strong>. We can also help identify compatible PXI-5600 downconverters, cables, PXI chassis, signal generators and RF measurement software.<\/p>","protected":false},"excerpt":{"rendered":"<p>PXI-5142 14-Bit 100 MS\/s Digitizer with Onboard Signal Processing The NI PXI-5142 is a two-channel, 14-bit PXI digitizer designed for<\/p>","protected":false},"featured_media":31222,"template":"","meta":{"_acf_changed":false},"product_brand":[18],"product_cat":[667],"product_tag":[],"class_list":["post-30480","product","type-product","status-publish","has-post-thumbnail","product_brand-national-instruments","product_cat-pxi-modules","first","instock","shipping-taxable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>NI PXI-5142 PXI Oscilloscope 779587-02, In Stock | Project Pricing<\/title>\n<meta name=\"description\" content=\"The PXI-5142 is a 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