{"id":34719,"date":"2026-08-07T15:29:00","date_gmt":"2026-08-07T07:29:00","guid":{"rendered":"https:\/\/pxisource.com\/?post_type=product&#038;p=34719"},"modified":"2026-08-14T22:29:17","modified_gmt":"2026-08-14T14:29:17","slug":"pxi-5900","status":"publish","type":"product","link":"https:\/\/pxisource.com\/ru\/product\/pxi-5900\/","title":{"rendered":"PXI-5900"},"content":{"rendered":"<h3>Product Introduction<\/h3>\n<p>\n\u0417\u0435\u043c\u043b\u044f <strong>NI PXI-5900<\/strong> is a two-channel differential amplifier designed for precision signal conditioning and measurement applications in PXI-based oscilloscope and digitizer systems. It extends the input capability of compatible PXI oscilloscopes by providing differential signal measurement, selectable input impedance, and flexible AC, DC, and ground coupling.\n<\/p>\n<p>\nFeaturing two differential input channels, a \u00b120 V differential input range, 6 MHz small-signal bandwidth, software-selectable 50 \u03a9 or 1 M\u03a9 input impedance, and NI-SCOPE software integration, the PXI-5900 is particularly useful for electronic validation, differential measurements, power electronics testing, laboratory research, and automated PXI measurement systems.\n<\/p>\n<h3>Product Overview<\/h3>\n<p>\n\u0417\u0435\u043c\u043b\u044f <strong>PXI-5900<\/strong> belongs to the NI PXI signal-conditioning and differential amplifier family. It is designed primarily for use with PXI oscilloscopes and digitizers, particularly the NI PXI-5922.\n<\/p>\n<p>\nMany electronic systems contain differential or floating signals that cannot be measured optimally using a conventional single-ended oscilloscope input. The PXI-5900 provides differential signal conditioning before the signal reaches the digitizer, allowing engineers to measure differential voltage while rejecting common-mode components.\n<\/p>\n<p>\nThe module provides BNC input connectors and SMB output connections, allowing it to integrate directly into modular PXI measurement systems while maintaining a compact single-slot form factor.\n<\/p>\n<h3>Key Features<\/h3>\n<h4>2-Channel Differential Input<\/h4>\n<p>\nThe PXI-5900 provides two independent differential measurement channels for acquiring signals where the voltage difference between two points is the primary measurement of interest.\n<\/p>\n<ul>\n<li>2 differential input channels<\/li>\n<li>Independent signal conditioning<\/li>\n<li>Differential voltage measurement<\/li>\n<li>Common-mode signal rejection<\/li>\n<li>Dual-channel automated testing<\/li>\n<\/ul>\n<p>\n<strong>Advantage:<\/strong> Enables differential measurements that can be difficult to perform accurately using standard single-ended oscilloscope inputs.\n<\/p>\n<h4>\u00b120 V Differential Input Range<\/h4>\n<p>\nThe PXI-5900 supports differential input voltages up to \u00b120 V, corresponding to 40 V peak-to-peak.\n<\/p>\n<ul>\n<li>\u00b120 V differential input range<\/li>\n<li>40 V peak-to-peak capability<\/li>\n<li>Electronic circuit measurement<\/li>\n<li>Power electronics signal acquisition<\/li>\n<li>Higher-voltage differential testing<\/li>\n<\/ul>\n<p>\n<strong>Advantage:<\/strong> Extends the usable input range of compatible PXI oscilloscope measurement systems.\n<\/p>\n<h4>6 MHz Small-Signal Bandwidth<\/h4>\n<p>\nThe NI PXI-5900 provides a small-signal bandwidth of approximately 6 MHz for dynamic signal measurements.\n<\/p>\n<ul>\n<li>6 MHz small-signal bandwidth<\/li>\n<li>Dynamic waveform acquisition<\/li>\n<li>Electronic signal characterization<\/li>\n<li>Frequency-response testing<\/li>\n<li>Automated waveform measurement<\/li>\n<\/ul>\n<p>\n<strong>Advantage:<\/strong> Provides sufficient bandwidth for a wide variety of low- and medium-frequency electronic measurement applications.\n<\/p>\n<h4>AC, DC and GND Input Coupling<\/h4>\n<p>\nThe PXI-5900 provides selectable input coupling modes to accommodate different measurement requirements.\n<\/p>\n<ul>\n<li>AC coupling<\/li>\n<li>DC coupling<\/li>\n<li>Ground coupling<\/li>\n<li>Flexible waveform measurement<\/li>\n<li>Software-controlled configuration<\/li>\n<\/ul>\n<p>\n<strong>Advantage:<\/strong> Engineers can select the appropriate coupling mode depending on whether DC components should be measured or removed from the acquired signal.\n<\/p>\n<h4>Software-Selectable Input Impedance<\/h4>\n<p>\nThe PXI-5900 supports software-controlled selection between high-impedance and 50 \u03a9 input configurations.\n<\/p>\n<ul>\n<li>50 \u03a9 input impedance<\/li>\n<li>1 M\u03a9 high-impedance input<\/li>\n<li>Software-selectable configuration<\/li>\n<li>Flexible instrument matching<\/li>\n<li>Laboratory and automated test integration<\/li>\n<\/ul>\n<p>\n<strong>Advantage:<\/strong> Allows the same amplifier to interface with both 50 \u03a9 measurement systems and high-impedance signal sources.\n<\/p>\n<h4>0.25 Vertical Gain<\/h4>\n<p>\nThe PXI-5900 uses a nominal vertical gain of 0.25 to condition higher-voltage differential input signals for compatible downstream digitizers.\n<\/p>\n<ul>\n<li>0.25 nominal vertical gain<\/li>\n<li>Signal attenuation and conditioning<\/li>\n<li>Extended voltage measurement capability<\/li>\n<li>Digitizer input compatibility<\/li>\n<li>Precision signal scaling<\/li>\n<\/ul>\n<p>\n<strong>Advantage:<\/strong> Allows larger differential signals to be measured using compatible high-resolution PXI digitizers.\n<\/p>\n<h4>High Common-Mode Rejection<\/h4>\n<p>\nDifferential measurement architecture helps reject signals that appear simultaneously on both input terminals.\n<\/p>\n<ul>\n<li>Approximately 70 dB CMRR at 60 Hz typical<\/li>\n<li>Common-mode noise rejection<\/li>\n<li>Differential sensor measurements<\/li>\n<li>Floating signal acquisition<\/li>\n<li>Power system testing<\/li>\n<\/ul>\n<p>\n<strong>Advantage:<\/strong> Improves measurement quality when useful differential signals are combined with unwanted common-mode interference.\n<\/p>\n<h4>BNC Input and SMB Output Connections<\/h4>\n<p>\nThe PXI-5900 provides measurement-oriented front-panel connectivity for integration with oscilloscopes and digitizers.\n<\/p>\n<ul>\n<li>BNC input connectors<\/li>\n<li>SMB output connectors<\/li>\n<li>Professional measurement cabling<\/li>\n<li>PXI oscilloscope integration<\/li>\n<li>Compact modular configuration<\/li>\n<\/ul>\n<p>\n<strong>Advantage:<\/strong> Provides straightforward integration into laboratory and automated PXI measurement systems.\n<\/p>\n<h4>Designed for PXI Oscilloscopes<\/h4>\n<p>\nThe PXI-5900 is specifically designed to extend the measurement capability of compatible NI PXI oscilloscopes and digitizers.\n<\/p>\n<ul>\n<li>PXI oscilloscope integration<\/li>\n<li>Designed particularly for PXI-5922 systems<\/li>\n<li>Differential front-end signal conditioning<\/li>\n<li>Automated waveform acquisition<\/li>\n<li>High-resolution measurement systems<\/li>\n<\/ul>\n<p>\n<strong>Advantage:<\/strong> Provides a dedicated differential measurement front end for compatible PXI oscilloscope platforms.\n<\/p>\n<h4>NI-SCOPE Software Support<\/h4>\n<p>\nThe PXI-5900 is configured and controlled through the NI-SCOPE driver environment.\n<\/p>\n<ul>\n<li>NI-SCOPE driver support<\/li>\n<li>\u0418\u043d\u0442\u0435\u0433\u0440\u0430\u0446\u0438\u044f LabVIEW<\/li>\n<li>LabWindows\/CVI support<\/li>\n<li>Measurement Studio support<\/li>\n<li>Visual C\/C++ programming support<\/li>\n<\/ul>\n<p>\n<strong>Advantage:<\/strong> Allows the PXI-5900 to be incorporated into automated measurement and test applications using the established NI oscilloscope software ecosystem.\n<\/p>\n<h3>Technical Specifications<\/h3>\n<table>\n<tr>\n<th>\u041f\u0430\u0440\u0430\u043c\u0435\u0442\u0440<\/th>\n<th>\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435<\/th>\n<\/tr>\n<tr>\n<td width=\"220\">Product Type<\/td>\n<td>PXI Differential Amplifier<\/td>\n<\/tr>\n<tr>\n<td>Part Number<\/td>\n<td>780166-01<\/td>\n<\/tr>\n<tr>\n<td>Number of Channels<\/td>\n<td>2 Differential Channels<\/td>\n<\/tr>\n<tr>\n<td>Input Connector<\/td>\n<td>BNC<\/td>\n<\/tr>\n<tr>\n<td>Output Connector<\/td>\n<td>\u0421\u041c\u0411<\/td>\n<\/tr>\n<tr>\n<td>Input Coupling<\/td>\n<td>AC, DC, GND<\/td>\n<\/tr>\n<tr>\n<td>Input Impedance<\/td>\n<td>Software Selectable 50 \u03a9 or 1 M\u03a9<\/td>\n<\/tr>\n<tr>\n<td>Differential Input Range<\/td>\n<td>\u00b120 V (40 Vpk-pk)<\/td>\n<\/tr>\n<tr>\n<td>Single-Ended Output Range<\/td>\n<td>\u00b15 V (10 Vpk-pk)<\/td>\n<\/tr>\n<tr>\n<td>Common-Mode Input Range<\/td>\n<td>\u00b110 V<\/td>\n<\/tr>\n<tr>\n<td>Small-Signal Bandwidth<\/td>\n<td>6 MHz<\/td>\n<\/tr>\n<tr>\n<td>Passband Flatness<\/td>\n<td>1 dB, DC to 5 MHz<\/td>\n<\/tr>\n<tr>\n<td>Vertical Gain<\/td>\n<td>0.25<\/td>\n<\/tr>\n<tr>\n<td>CMRR<\/td>\n<td>70 dB at 60 Hz, Typical<\/td>\n<\/tr>\n<tr>\n<td>Slew Rate<\/td>\n<td>100 V\/\u03bcs Typical<\/td>\n<\/tr>\n<tr>\n<td>Platform<\/td>\n<td>PXI<\/td>\n<\/tr>\n<tr>\n<td>Module Width<\/td>\n<td>1 Slot<\/td>\n<\/tr>\n<tr>\n<td>Driver<\/td>\n<td>NI-SCOPE<\/td>\n<\/tr>\n<tr>\n<td>Primary Applications<\/td>\n<td>Differential Signal Measurement, Oscilloscope Signal Conditioning and Automated Test<\/td>\n<\/tr>\n<\/table>\n<h3>Software Ecosystem<\/h3>\n<p>\nThe NI PXI-5900 integrates with the NI oscilloscope software ecosystem for configuration, measurement, calibration, and automated test development.\n<\/p>\n<ul>\n<li>\n<strong>NI-SCOPE:<\/strong> Provides APIs for configuration, control, and calibration of the PXI-5900 and compatible NI oscilloscope hardware.\n<\/li>\n<li>\n<strong>LabVIEW:<\/strong> Enables development of waveform acquisition, visualization, signal analysis, and automated measurement applications.\n<\/li>\n<li>\n<strong>NI MAX:<\/strong> Provides hardware detection, configuration, and diagnostic functionality.\n<\/li>\n<li>\n<strong>LabWindows\/CVI:<\/strong> Supports development of C-based automated test and measurement software.\n<\/li>\n<li>\n<strong>Measurement Studio and Visual C\/C++:<\/strong> Provide additional programming environments for customized measurement applications.\n<\/li>\n<\/ul>\n<h3>Industries<\/h3>\n<ul>\n<li>Electronic Validation<\/li>\n<li>Power Electronics<\/li>\n<li>Automated Test<\/li>\n<li>\u0410\u044d\u0440\u043e\u043a\u043e\u0441\u043c\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0438 \u043e\u0431\u043e\u0440\u043e\u043d\u043d\u0430\u044f \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u0441\u0442\u044c<\/li>\n<li>Automotive Electronics<\/li>\n<li>\u0422\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e\u043b\u0443\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u0438\u043a\u043e\u0432<\/li>\n<li>Research and Development<\/li>\n<li>Scientific Laboratories<\/li>\n<\/ul>\n<h3>Applications<\/h3>\n<h4>Differential Voltage Measurement<\/h4>\n<p>\nThe PXI-5900 is particularly useful when measuring voltage differences between two circuit nodes rather than signals referenced directly to ground.\n<\/p>\n<ul>\n<li>Differential circuit measurements<\/li>\n<li>Floating voltage measurement<\/li>\n<li>Electronic subsystem testing<\/li>\n<li>Precision waveform acquisition<\/li>\n<\/ul>\n<h4>PXI Oscilloscope Signal Conditioning<\/h4>\n<p>\nThe PXI-5900 can be placed ahead of a compatible PXI oscilloscope to extend differential measurement capability.\n<\/p>\n<ul>\n<li>PXI-5922 signal conditioning<\/li>\n<li>Input voltage scaling<\/li>\n<li>Differential waveform acquisition<\/li>\n<li>Automated oscilloscope testing<\/li>\n<\/ul>\n<h4>Power Electronics Testing<\/h4>\n<p>\nDifferential measurement capability makes the module useful for electronic power conversion and switching applications within its voltage and bandwidth limits.\n<\/p>\n<ul>\n<li>Power converter testing<\/li>\n<li>Switching waveform measurement<\/li>\n<li>Power supply characterization<\/li>\n<li>Electronic control circuit validation<\/li>\n<\/ul>\n<h4>Common-Mode Noise Rejection<\/h4>\n<p>\nThe differential architecture can improve measurements where the desired signal is accompanied by significant common-mode voltage or interference.\n<\/p>\n<ul>\n<li>Noise-sensitive measurements<\/li>\n<li>Floating circuit testing<\/li>\n<li>Ground-related interference reduction<\/li>\n<li>Differential sensor acquisition<\/li>\n<\/ul>\n<h4>Automated Electronic Testing<\/h4>\n<p>\nThe PXI-5900 can be incorporated into automated PXI platforms requiring differential waveform measurements.\n<\/p>\n<ul>\n<li>Functional testing<\/li>\n<li>Production validation<\/li>\n<li>Electronic characterization<\/li>\n<li>Automated waveform analysis<\/li>\n<\/ul>\n<h4>Research and Laboratory Measurement<\/h4>\n<p>\nThe module provides researchers with a programmable differential front end for compatible PXI digitizers and oscilloscopes.\n<\/p>\n<ul>\n<li>Experimental measurements<\/li>\n<li>Prototype characterization<\/li>\n<li>Signal analysis<\/li>\n<li>Laboratory instrumentation<\/li>\n<\/ul>\n<h3>Comparison with Related PXI Measurement Products<\/h3>\n<table>\n<tr>\n<th>\u041c\u043e\u0434\u0435\u043b\u044c<\/th>\n<th>\u041e\u0441\u043d\u043e\u0432\u043d\u043e\u0435 \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u0435<\/th>\n<th>Best Application<\/th>\n<\/tr>\n<tr>\n<td width=\"180\">\n<a href=\"https:\/\/pxisource.com\/ru\/product\/pxi-5900\/\"><strong>NI PXI-5900<\/strong><\/a>\n<\/td>\n<td>\n2-channel differential amplifier with \u00b120 V differential input range and 6 MHz bandwidth.\n<\/td>\n<td>\nDifferential oscilloscope signal conditioning\n<\/td>\n<\/tr>\n<tr>\n<td width=\"180\">\n<a href=\"https:\/\/pxisource.com\/ru\/product\/%d0%bf%d1%85%d0%b8-5922\/\"><strong>NI PXI-5922<\/strong><\/a>\n<\/td>\n<td>\nHigh-resolution flexible-resolution PXI oscilloscope\/digitizer that can be paired with the PXI-5900.\n<\/td>\n<td>\nHigh-resolution waveform digitization\n<\/td>\n<\/tr>\n<tr>\n<td width=\"180\">\n<a href=\"https:\/\/pxisource.com\/ru\/product\/pxi-6133\/\"><strong>NI PXI-6133<\/strong><\/a>\n<\/td>\n<td>\n8-channel simultaneous-sampling multifunction DAQ module for higher-speed multi-channel acquisition.\n<\/td>\n<td>\nHigh-speed synchronized data acquisition\n<\/td>\n<\/tr>\n<tr>\n<td width=\"180\">\n<a href=\"https:\/\/pxisource.com\/ru\/product\/pxi-6280\/\"><strong>NI PXI-6280<\/strong><\/a>\n<\/td>\n<td>\n18-bit high-accuracy multifunction DAQ module for precision general-purpose analog measurement.\n<\/td>\n<td>\nHigh-accuracy multifunction DAQ\n<\/td>\n<\/tr>\n<\/table>\n<h3>Recommended Related Products<\/h3>\n<table>\n<tr>\n<td width=\"180\">\n<a href=\"https:\/\/pxisource.com\/ru\/product\/%d0%bf%d1%85%d0%b8-5922\/\"><strong>NI PXI-5922<\/strong><\/a>\n<\/td>\n<td>\nHigh-resolution PXI oscilloscope particularly suited for use with the PXI-5900 differential amplifier.\n<\/td>\n<\/tr>\n<tr>\n<td width=\"180\">\n<a href=\"https:\/\/pxisource.com\/ru\/product\/pxi-6133\/\"><strong>NI PXI-6133<\/strong><\/a>\n<\/td>\n<td>\nHigh-speed simultaneous-sampling DAQ module for applications requiring multiple synchronized analog input channels.\n<\/td>\n<\/tr>\n<tr>\n<td width=\"180\">\n<a href=\"https:\/\/pxisource.com\/ru\/product\/pxi-6280\/\"><strong>NI PXI-6280<\/strong><\/a>\n<\/td>\n<td>\nHigh-accuracy multifunction DAQ module for precision voltage, sensor, and automated measurement applications.\n<\/td>\n<\/tr>\n<tr>\n<td width=\"180\">\n<a href=\"https:\/\/pxisource.com\/ru\/product\/pxi-4070\/\"><strong>NI PXI-4070<\/strong><\/a>\n<\/td>\n<td>\nPrecision PXI digital multimeter for DC and AC electrical measurement applications.\n<\/td>\n<\/tr>\n<\/table>\n<h3>Why Choose PXI-5900?<\/h3>\n<ul>\n<li>2 differential measurement channels<\/li>\n<li>\u00b120 V differential input range<\/li>\n<li>6 MHz small-signal bandwidth<\/li>\n<li>AC, DC, and GND coupling<\/li>\n<li>Software-selectable 50 \u03a9 and 1 M\u03a9 input impedance<\/li>\n<li>High common-mode rejection<\/li>\n<li>BNC input and SMB output connectivity<\/li>\n<li>Designed for compatible PXI oscilloscopes<\/li>\n<li>NI-SCOPE software integration<\/li>\n<li>Ideal for precision differential signal measurement<\/li>\n<\/ul>\n<h3>Frequently Asked Questions<\/h3>\n<h4>What is the NI PXI-5900?<\/h4>\n<p>\nThe NI PXI-5900 is a two-channel PXI differential amplifier designed to provide differential signal conditioning for compatible PXI oscilloscopes and digitizers.\n<\/p>\n<h4>Is the PXI-5900 an oscilloscope?<\/h4>\n<p>\nNo. The PXI-5900 is a differential amplifier rather than a standalone oscilloscope or digitizer. It is designed to condition signals before they are measured by compatible PXI oscilloscope hardware.\n<\/p>\n<h4>How many channels does the PXI-5900 have?<\/h4>\n<p>\nThe PXI-5900 provides two differential input channels.\n<\/p>\n<h4>What is the input range of the PXI-5900?<\/h4>\n<p>\nThe PXI-5900 provides a differential input voltage range of \u00b120 V, corresponding to 40 V peak-to-peak.\n<\/p>\n<h4>What is the bandwidth of the PXI-5900?<\/h4>\n<p>\nThe PXI-5900 has a specified small-signal bandwidth of 6 MHz for a 1 V peak-to-peak input signal.\n<\/p>\n<h4>What input impedance does the PXI-5900 support?<\/h4>\n<p>\nThe PXI-5900 provides software-selectable input impedance of either 50 \u03a9 or 1 M\u03a9. The high-impedance configuration is specified as 1 M\u03a9 in parallel with approximately 60 pF.\n<\/p>\n<h4>Does the PXI-5900 support AC and DC coupling?<\/h4>\n<p>\nYes. The PXI-5900 provides AC, DC, and GND input coupling options that can be selected according to the measurement requirement.\n<\/p>\n<h4>Can the PXI-5900 be used with the PXI-5922?<\/h4>\n<p>\nYes. The PXI-5900 is specifically designed for use with PXI oscilloscopes and is particularly associated with the NI PXI-5922 high-resolution digitizer.\n<\/p>\n<h4>What software supports the PXI-5900?<\/h4>\n<p>\nThe PXI-5900 is supported by NI-SCOPE. NI-SCOPE provides configuration, control, and calibration APIs for LabVIEW, LabWindows\/CVI, Measurement Studio, and compatible C\/C++ development environments.\n<\/p>\n<h4>What is the difference between PXI-5900 and PXI-5922?<\/h4>\n<p>\nThe PXI-5900 is a differential amplifier that conditions and scales input signals. The PXI-5922 is a digitizer\/oscilloscope that converts analog waveforms into digital measurement data. They can be used together when a test system requires high-resolution waveform acquisition with differential signal conditioning.\n<\/p>\n<h3>\u0417\u0430\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435<\/h3>\n<p>\n\u0417\u0435\u043c\u043b\u044f <strong>NI PXI-5900 differential amplifier<\/strong> provides a dedicated signal-conditioning solution for differential waveform measurements in PXI oscilloscope systems. With two differential channels, \u00b120 V input capability, 6 MHz bandwidth, selectable AC\/DC\/GND coupling, software-selectable 50 \u03a9 or 1 M\u03a9 impedance, strong common-mode rejection, and NI-SCOPE integration, the PXI-5900 is well suited for electronic validation, power electronics testing, automated measurement, and laboratory applications.<\/p>","protected":false},"excerpt":{"rendered":"<p>Product Introduction The NI PXI-5900 is a two-channel differential amplifier designed for precision signal conditioning and measurement applications in PXI-based<\/p>","protected":false},"featured_media":31238,"template":"","meta":{"_acf_changed":false},"product_brand":[18],"product_cat":[728],"product_tag":[],"class_list":["post-34719","product","type-product","status-publish","has-post-thumbnail","product_brand-national-instruments","product_cat-pxi-rf-and-wireless-test","first","instock","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is 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