{"id":34795,"date":"2026-08-08T11:43:17","date_gmt":"2026-08-08T03:43:17","guid":{"rendered":"https:\/\/pxisource.com\/?post_type=product&#038;p=34795"},"modified":"2026-08-25T20:08:24","modified_gmt":"2026-08-25T12:08:24","slug":"pxie-6381","status":"publish","type":"product","link":"https:\/\/pxisource.com\/ru\/product\/pxie-6381\/","title":{"rendered":"PXIe-6381"},"content":{"rendered":"<h3>Product Introduction<\/h3>\n<p>\n\u0417\u0435\u043c\u043b\u044f <strong>NI PXIe-6381<\/strong> is a high-accuracy PXI Express multifunction I\/O module designed for data acquisition, automated test, control, data logging, sensor measurement, and electronic validation applications.\n<\/p>\n<p>\nThe PXIe-6381 combines <strong>16 analog input channels with 18-bit resolution and a maximum sampling rate of 625 kS\/s<\/strong>, <strong>2 analog output channels operating at up to 2.86 MS\/s<\/strong>, <strong>24 digital I\/O lines<\/strong>, \u0438 <strong>four 32-bit counter\/timers<\/strong> in a single PXI Express module.\n<\/p>\n<p>\nWith its high-resolution analog input architecture, multifunction I\/O capabilities, PCI Express connectivity, and NI STC3 timing and synchronization technology, the PXIe-6381 provides a flexible platform for applications ranging from basic data logging to sophisticated automated control and test systems.\n<\/p>\n<h3>Product Overview<\/h3>\n<p>\n\u0417\u0435\u043c\u043b\u044f <strong>National Instruments PXIe-6381<\/strong> is designed for engineers who require analog measurement, analog stimulus, digital I\/O, and counter\/timer functionality within a single PXI Express instrument.\n<\/p>\n<p>\nIts 18-bit analog input resolution provides improved measurement resolution compared with conventional 16-bit multifunction DAQ hardware, while its \u00b110 V measurement capability supports a broad range of voltage-based sensors, transducers, and electronic signals.\n<\/p>\n<p>\nThe PXIe-6381 is particularly suitable for automated test systems where multiple measurement and control functions must operate together with precise hardware timing and synchronization.\n<\/p>\n<h3>Key Features<\/h3>\n<h4>16 Analog Input Channels<\/h4>\n<p>\nThe PXIe-6381 provides up to <strong>16 single-ended analog input channels<\/strong> \u0438\u043b\u0438 <strong>8 differential analog input channels<\/strong>.\n<\/p>\n<ul>\n<li>16 single-ended analog inputs<\/li>\n<li>8 differential analog inputs<\/li>\n<li>18-bit analog input resolution<\/li>\n<li>625 kS\/s maximum sampling rate<\/li>\n<li>Multiple programmable input ranges<\/li>\n<li>Suitable for voltage and sensor measurements<\/li>\n<\/ul>\n<p>\n<strong>Advantage:<\/strong> The flexible channel configuration allows engineers to select between higher channel count and differential measurement depending on signal integrity and application requirements.\n<\/p>\n<h4>18-Bit Analog Input Resolution<\/h4>\n<p>\nOne of the primary advantages of the PXIe-6381 is its <strong>18-bit analog input resolution<\/strong>.\n<\/p>\n<p>\nHigher ADC resolution provides finer voltage measurement granularity than conventional 16-bit multifunction DAQ devices when operating under comparable measurement conditions.\n<\/p>\n<ul>\n<li>18-bit ADC architecture<\/li>\n<li>High-resolution voltage measurement<\/li>\n<li>Suitable for precision data acquisition<\/li>\n<li>Improved small-signal measurement capability<\/li>\n<li>Useful for sensor and electronic validation<\/li>\n<\/ul>\n<h4>625 kS\/s Maximum Analog Input Sample Rate<\/h4>\n<p>\nThe PXIe-6381 provides a maximum analog input sampling rate of <strong>625 kS\/s<\/strong>.\n<\/p>\n<ul>\n<li>Up to 625 kS\/s analog acquisition<\/li>\n<li>\u0418\u0437\u043c\u0435\u0440\u0435\u043d\u0438\u044f \u0441 \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u044b\u043c \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0430\u0446\u0438\u0435\u0439<\/li>\n<li>Continuous data acquisition<\/li>\n<li>Transient signal recording<\/li>\n<li>Automated test measurements<\/li>\n<\/ul>\n<p>\nThe module uses a multiplexed analog input architecture and does not provide simultaneous sampling across all analog input channels.\n<\/p>\n<h4>Multiple Analog Input Ranges<\/h4>\n<p>\nThe PXIe-6381 supports multiple programmable bipolar analog input ranges, allowing the measurement range to be matched to the expected signal amplitude.\n<\/p>\n<ul>\n<li>\u00b10.1 V<\/li>\n<li>\u00b10.2 V<\/li>\n<li>\u00b10.5 V<\/li>\n<li>\u00b11 V<\/li>\n<li>\u00b12 V<\/li>\n<li>\u00b15 V<\/li>\n<li>\u00b110 V<\/li>\n<\/ul>\n<p>\n<strong>Advantage:<\/strong> Selecting an appropriate input range helps maximize the effective measurement resolution for different signal amplitudes.\n<\/p>\n<h4>2 Analog Output Channels<\/h4>\n<p>\nIn addition to analog measurement, the PXIe-6381 provides <strong>2 analog output channels<\/strong> for generating programmable voltage signals.\n<\/p>\n<ul>\n<li>2 analog outputs<\/li>\n<li>Up to 2.86 MS\/s analog output update rate<\/li>\n<li>Programmable waveform generation<\/li>\n<li>Control signal generation<\/li>\n<li>DUT stimulus generation<\/li>\n<li>Automated test integration<\/li>\n<\/ul>\n<p>\n<strong>Advantage:<\/strong> Analog input and output functions can be combined in the same module for closed-loop control, stimulus-response testing, and automated electronic validation.\n<\/p>\n<h4>2.86 MS\/s Analog Output Update Rate<\/h4>\n<p>\nThe PXIe-6381 analog outputs provide update rates up to <strong>2.86 MS\/s<\/strong>, enabling generation of dynamic control and stimulus signals.\n<\/p>\n<p>\n\u0422\u0438\u043f\u0438\u0447\u043d\u044b\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0442:\n<\/p>\n<ul>\n<li>Programmable voltage stimulus<\/li>\n<li>Control waveform generation<\/li>\n<li>Device characterization<\/li>\n<li>Automated test stimulus<\/li>\n<li>\u0417\u0430\u043c\u043a\u043d\u0443\u0442\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f<\/li>\n<\/ul>\n<h4>24 Digital I\/O Lines<\/h4>\n<p>\nThe PXIe-6381 includes <strong>24 digital I\/O lines<\/strong> for interfacing with digital devices and test-system control signals.\n<\/p>\n<ul>\n<li>24 digital I\/O lines<\/li>\n<li>Digital input monitoring<\/li>\n<li>Digital output control<\/li>\n<li>Test fixture interfacing<\/li>\n<li>Trigger and status signal handling<\/li>\n<li>Automated control applications<\/li>\n<\/ul>\n<p>\nThe digital I\/O capability allows the PXIe-6381 to combine analog measurement with digital control without requiring a separate general-purpose DIO module for many applications.\n<\/p>\n<h4>Four 32-Bit Counter\/Timers<\/h4>\n<p>\nThe PXIe-6381 provides <strong>four 32-bit counter\/timers<\/strong> for advanced timing and digital measurement applications.\n<\/p>\n<ul>\n<li>Frequency measurement<\/li>\n<li>Period measurement<\/li>\n<li>\u041f\u043e\u0434\u0441\u0447\u0435\u0442 \u0441\u043e\u0431\u044b\u0442\u0438\u0439<\/li>\n<li>\u0418\u0437\u043c\u0435\u0440\u0435\u043d\u0438\u0435 \u043f\u0443\u043b\u044c\u0441\u0430<\/li>\n<li>\u0413\u0435\u043d\u0435\u0440\u0430\u0446\u0438\u044f \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043e\u0432<\/li>\n<li>PWM applications<\/li>\n<li>Encoder measurements<\/li>\n<\/ul>\n<p>\n<strong>Advantage:<\/strong> Dedicated counter\/timer hardware provides additional measurement and control functionality beyond standard analog and digital I\/O.\n<\/p>\n<h4>NI STC3 Timing and Synchronization<\/h4>\n<p>\nThe PXIe-6381 incorporates <strong>NI STC3 timing and synchronization technology<\/strong>.\n<\/p>\n<p>\nSTC3 provides advanced hardware timing capabilities including independent analog and digital timing engines and support for retriggerable measurement tasks.\n<\/p>\n<ul>\n<li>Independent timing engines<\/li>\n<li>Hardware-timed analog acquisition<\/li>\n<li>Hardware-timed digital operations<\/li>\n<li>Retriggerable measurement tasks<\/li>\n<li>\u0420\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u043d\u0430\u044f \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0430\u0446\u0438\u044f<\/li>\n<li>Deterministic test sequencing<\/li>\n<\/ul>\n<h4>PXI Express Architecture<\/h4>\n<p>\nThe PXIe-6381 uses the high-throughput PCI Express architecture of the PXI Express platform.\n<\/p>\n<p>\nThis provides efficient communication between the multifunction I\/O module and the PXI controller while allowing the device to integrate with other PXI instrumentation.\n<\/p>\n<ul>\n<li>PXI Express interface<\/li>\n<li>High-throughput data transfer<\/li>\n<li>Modular instrumentation architecture<\/li>\n<li>\u0410\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u0430\u044f \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0430\u0446\u0438\u044f<\/li>\n<li>Scalable automated test integration<\/li>\n<\/ul>\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=\"230\">Product Type<\/td>\n<td>PXI Express Multifunction I\/O Module<\/td>\n<\/tr>\n<tr>\n<td>\u041c\u043e\u0434\u0435\u043b\u044c<\/td>\n<td>NI PXIe-6381<\/td>\n<\/tr>\n<tr>\n<td>Part Number<\/td>\n<td>790689-01<\/td>\n<\/tr>\n<tr>\n<td>\u0428\u0438\u043d\u043d\u044b\u0439 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441<\/td>\n<td>PXI Express<\/td>\n<\/tr>\n<tr>\n<td>Maximum Single-Ended Analog Inputs<\/td>\n<td>16<\/td>\n<\/tr>\n<tr>\n<td>Maximum Differential Analog Inputs<\/td>\n<td>8<\/td>\n<\/tr>\n<tr>\n<td>Analog Input Resolution<\/td>\n<td>18 Bit<\/td>\n<\/tr>\n<tr>\n<td>Maximum Analog Input Sample Rate<\/td>\n<td>625 kS\/s<\/td>\n<\/tr>\n<tr>\n<td>Simultaneous Sampling<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td>Analog Input Ranges<\/td>\n<td>\u00b10.1 V, \u00b10.2 V, \u00b10.5 V, \u00b11 V, \u00b12 V, \u00b15 V, \u00b110 V<\/td>\n<\/tr>\n<tr>\n<td>Analog Input Absolute Accuracy<\/td>\n<td>980 \u03bcV<\/td>\n<\/tr>\n<tr>\n<td>Analog Output Channels<\/td>\n<td>2<\/td>\n<\/tr>\n<tr>\n<td>Maximum Analog Output Update Rate<\/td>\n<td>2.86 MS\/s<\/td>\n<\/tr>\n<tr>\n<td>\u0426\u0438\u0444\u0440\u043e\u0432\u043e\u0439 \u0432\u0432\u043e\u0434-\u0432\u044b\u0432\u043e\u0434<\/td>\n<td>24 Lines<\/td>\n<\/tr>\n<tr>\n<td>Counter\/Timers<\/td>\n<td>4<\/td>\n<\/tr>\n<tr>\n<td>Counter Resolution<\/td>\n<td>32 Bit<\/td>\n<\/tr>\n<tr>\n<td>Timing Technology<\/td>\n<td>NI STC3<\/td>\n<\/tr>\n<tr>\n<td>Driver<\/td>\n<td>\u041d\u0418-DAQmx<\/td>\n<\/tr>\n<tr>\n<td>Primary Applications<\/td>\n<td>Data Acquisition, Data Logging, Automated Test, Control, Sensor Measurement and Electronic Validation<\/td>\n<\/tr>\n<\/table>\n<h3>What Is a Multifunction I\/O Module?<\/h3>\n<p>\nA multifunction I\/O module combines several measurement and control functions within a single device.\n<\/p>\n<p>\nInstead of using separate modules for analog acquisition, analog generation, digital I\/O, and counter\/timer operations, engineers can use a multifunction device such as the PXIe-6381 to perform these functions from one PXI Express slot.\n<\/p>\n<p>\nThe PXIe-6381 combines:\n<\/p>\n<ul>\n<li>Analog input<\/li>\n<li>Analog output<\/li>\n<li>Digital input and output<\/li>\n<li>Counter\/timer functions<\/li>\n<li>Hardware timing<\/li>\n<li>Triggering and synchronization<\/li>\n<\/ul>\n<p>\nThis makes multifunction I\/O particularly useful for general-purpose automated test and control systems.\n<\/p>\n<h3>Analog Input Applications<\/h3>\n<p>\nThe PXIe-6381&#8217;s 18-bit analog input subsystem can acquire voltage signals from compatible sensors, transducers, electronic circuits, and test fixtures.\n<\/p>\n<p>\n\u0422\u0438\u043f\u0438\u0447\u043d\u044b\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0442:\n<\/p>\n<ul>\n<li>Voltage measurement<\/li>\n<li>Sensor data acquisition<\/li>\n<li>Electronic circuit testing<\/li>\n<li>Device characterization<\/li>\n<li>Process monitoring<\/li>\n<li>Automated data logging<\/li>\n<li>Research measurements<\/li>\n<\/ul>\n<h3>Single-Ended vs Differential Measurements<\/h3>\n<p>\nThe PXIe-6381 supports both single-ended and differential analog input configurations.\n<\/p>\n<table>\n<tr>\n<th>\u041a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u044f<\/th>\n<th>Maximum Channels<\/th>\n<th>Typical Advantage<\/th>\n<\/tr>\n<tr>\n<td>Single-Ended<\/td>\n<td>16<\/td>\n<td>Higher Channel Count<\/td>\n<\/tr>\n<tr>\n<td>Differential<\/td>\n<td>8<\/td>\n<td>Improved Noise Rejection and Signal Integrity<\/td>\n<\/tr>\n<\/table>\n<p>\nSingle-ended measurements are useful when channel density is important and signals share an appropriate reference. Differential measurements are generally preferred when improved common-mode noise rejection is required.\n<\/p>\n<h3>18-Bit vs 16-Bit Data Acquisition<\/h3>\n<p>\nADC resolution determines the number of discrete digital levels available to represent the measured analog signal.\n<\/p>\n<table>\n<tr>\n<th>ADC Resolution<\/th>\n<th>Theoretical Number of Levels<\/th>\n<\/tr>\n<tr>\n<td>16 Bit<\/td>\n<td>65,536<\/td>\n<\/tr>\n<tr>\n<td>18 Bit<\/td>\n<td>262,144<\/td>\n<\/tr>\n<\/table>\n<p>\nAn 18-bit ADC therefore provides four times as many theoretical quantization levels as a 16-bit ADC.\n<\/p>\n<p>\nHowever, actual measurement performance also depends on noise, gain error, offset error, temperature, signal conditioning, wiring, grounding, and the selected input range. ADC resolution alone should not be interpreted as measurement accuracy.\n<\/p>\n<h3>Analog Output Applications<\/h3>\n<p>\nThe two analog output channels allow the PXIe-6381 to generate voltage signals while simultaneously forming part of a measurement system.\n<\/p>\n<ul>\n<li>Device stimulus<\/li>\n<li>Control signals<\/li>\n<li>Test waveform generation<\/li>\n<li>Sensor excitation applications<\/li>\n<li>Electronic characterization<\/li>\n<li>\u0417\u0430\u043c\u043a\u043d\u0443\u0442\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f<\/li>\n<\/ul>\n<p>\nThis makes the PXIe-6381 useful for stimulus-response testing where one part of the module generates a signal and another subsystem measures the DUT response.\n<\/p>\n<h3>Digital I\/O Applications<\/h3>\n<p>\nThe 24 digital I\/O lines can interface the PXIe-6381 with compatible digital devices, control circuits, and test fixtures.\n<\/p>\n<ul>\n<li>DUT status monitoring<\/li>\n<li>Fixture control<\/li>\n<li>Digital triggering<\/li>\n<li>Logic-state acquisition<\/li>\n<li>Control-line generation<\/li>\n<li>Automated test sequencing<\/li>\n<\/ul>\n<h3>Counter and Timer Applications<\/h3>\n<p>\nThe four 32-bit counter\/timers extend the PXIe-6381 beyond conventional voltage measurement.\n<\/p>\n<p>\nTypical counter\/timer applications include:\n<\/p>\n<ul>\n<li>\u041f\u043e\u0434\u0441\u0447\u0435\u0442 \u0441\u043e\u0431\u044b\u0442\u0438\u0439<\/li>\n<li>Frequency measurement<\/li>\n<li>Period measurement<\/li>\n<li>Pulse-width measurement<\/li>\n<li>Encoder measurement<\/li>\n<li>\u0413\u0435\u043d\u0435\u0440\u0430\u0446\u0438\u044f \u0428\u0418\u041c<\/li>\n<li>\u0413\u0435\u043d\u0435\u0440\u0430\u0446\u0438\u044f \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043d\u043e\u0439 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438<\/li>\n<\/ul>\n<p>\nThis functionality is useful in motor testing, rotating machinery measurements, automation, motion-related measurements, and electronic validation.\n<\/p>\n<h3>Data Logging<\/h3>\n<p>\nThe PXIe-6381 is well suited for general-purpose data logging applications where multiple voltage channels must be acquired over time.\n<\/p>\n<p>\nThe combination of 18-bit resolution, multiple programmable input ranges, hardware timing, and PXI Express data transfer makes it suitable for:\n<\/p>\n<ul>\n<li>Laboratory data logging<\/li>\n<li>Product validation<\/li>\n<li>Environmental monitoring<\/li>\n<li>Sensor acquisition<\/li>\n<li>Long-duration measurements<\/li>\n<li>Engineering experiments<\/li>\n<\/ul>\n<h3>Automated Test Applications<\/h3>\n<p>\nThe multifunction architecture of the PXIe-6381 is particularly valuable in automated test systems.\n<\/p>\n<p>\nA single test sequence can use:\n<\/p>\n<ul>\n<li>Analog outputs to stimulate the DUT<\/li>\n<li>Analog inputs to measure DUT response<\/li>\n<li>Digital I\/O to control the fixture<\/li>\n<li>Counters to measure frequency or pulses<\/li>\n<li>Hardware triggers to synchronize operations<\/li>\n<\/ul>\n<p>\nThis reduces the number of separate instruments required for many general-purpose functional test applications.\n<\/p>\n<h3>Control Applications<\/h3>\n<p>\nThe combination of analog input, analog output, digital I\/O, counter\/timers, and advanced hardware timing makes the PXIe-6381 suitable for compatible monitoring and control applications.\n<\/p>\n<ul>\n<li>\u0417\u0430\u043c\u043a\u043d\u0443\u0442\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f<\/li>\n<li>Machine test systems<\/li>\n<li>Laboratory automation<\/li>\n<li>Prototype control<\/li>\n<li>Actuator and sensor testing<\/li>\n<li>Research systems<\/li>\n<\/ul>\n<h3>NI STC3 Timing Architecture<\/h3>\n<p>\nPrecise timing is important when multiple measurement and control operations must occur in a defined sequence.\n<\/p>\n<p>\nThe PXIe-6381 uses NI STC3 technology to provide independent timing engines for analog and digital subsystems.\n<\/p>\n<p>\nThis architecture supports sophisticated automated measurement sequences including retriggerable acquisition tasks.\n<\/p>\n<p>\nA simplified automated test architecture can be represented as:\n<\/p>\n<p>\n<strong>Trigger \u2192 Analog\/Digital Stimulus \u2192 DUT \u2192 PXIe-6381 Measurement \u2192 Data Processing \u2192 Pass\/Fail Result<\/strong>\n<\/p>\n<h3>PXIe-6381 in a PXI System<\/h3>\n<p>\nThe PXIe-6381 can operate as the general-purpose DAQ and control component of a larger PXI automated test platform.\n<\/p>\n<p>\nA complete system may combine the PXIe-6381 with:\n<\/p>\n<ul>\n<li>PXI Express chassis<\/li>\n<li>PXI embedded or remote controller<\/li>\n<li>Oscilloscopes and digitizers<\/li>\n<li>Digital multimeters<\/li>\n<li>Programmable power supplies<\/li>\n<li>PXI switch modules<\/li>\n<li>RF instruments<\/li>\n<li>Communication interfaces<\/li>\n<\/ul>\n<p>\nThis modular architecture allows the system to be expanded as measurement requirements change.\n<\/p>\n<h3>PXIe-6381 vs Dedicated Measurement Instruments<\/h3>\n<table>\n<tr>\n<th>\u0424\u0443\u043d\u043a\u0446\u0438\u044f<\/th>\n<th>PXIe-6381<\/th>\n<th>Dedicated Instrument<\/th>\n<\/tr>\n<tr>\n<td>Analog Input<\/td>\n<td>Included<\/td>\n<td>Instrument Dependent<\/td>\n<\/tr>\n<tr>\n<td>Analog Output<\/td>\n<td>Included<\/td>\n<td>May Require Separate Instrument<\/td>\n<\/tr>\n<tr>\n<td>\u0426\u0438\u0444\u0440\u043e\u0432\u043e\u0439 \u0432\u0432\u043e\u0434-\u0432\u044b\u0432\u043e\u0434<\/td>\n<td>24 Lines<\/td>\n<td>May Require Separate Hardware<\/td>\n<\/tr>\n<tr>\n<td>Counter\/Timers<\/td>\n<td>4 \u00d7 32 Bit<\/td>\n<td>Instrument Dependent<\/td>\n<\/tr>\n<tr>\n<td>Primary Advantage<\/td>\n<td>Multiple Functions in One Module<\/td>\n<td>Optimized for Specialized Measurements<\/td>\n<\/tr>\n<tr>\n<td>Best Application<\/td>\n<td>General-Purpose DAQ and Automated Test<\/td>\n<td>Specialized High-Performance Measurement<\/td>\n<\/tr>\n<\/table>\n<h3>PXIe-6381 vs PXIe-6383<\/h3>\n<p>\nThe PXIe-6381 and PXIe-6383 belong to the same generation of high-accuracy 18-bit PXI Express multifunction I\/O modules, but the PXIe-6383 provides higher channel density.\n<\/p>\n<table>\n<tr>\n<th>\u0424\u0443\u043d\u043a\u0446\u0438\u044f<\/th>\n<th>PXIe-6381<\/th>\n<th>PXIe-6383<\/th>\n<\/tr>\n<tr>\n<td>Analog Input Resolution<\/td>\n<td>18 Bit<\/td>\n<td>18 Bit<\/td>\n<\/tr>\n<tr>\n<td>Maximum AI Sample Rate<\/td>\n<td>625 kS\/s<\/td>\n<td>625 kS\/s<\/td>\n<\/tr>\n<tr>\n<td>Single-Ended AI<\/td>\n<td>16<\/td>\n<td>32<\/td>\n<\/tr>\n<tr>\n<td>Analog Outputs<\/td>\n<td>2<\/td>\n<td>4<\/td>\n<\/tr>\n<tr>\n<td>\u0426\u0438\u0444\u0440\u043e\u0432\u043e\u0439 \u0432\u0432\u043e\u0434-\u0432\u044b\u0432\u043e\u0434<\/td>\n<td>24<\/td>\n<td>48<\/td>\n<\/tr>\n<tr>\n<td>Counter\/Timers<\/td>\n<td>4<\/td>\n<td>4<\/td>\n<\/tr>\n<tr>\n<td>Primary Advantage<\/td>\n<td>Cost-Effective Multifunction I\/O<\/td>\n<td>Higher I\/O Channel Density<\/td>\n<\/tr>\n<\/table>\n<p>\nChoose the PXIe-6381 when 16 AI, 2 AO, and 24 DIO provide sufficient capacity. Choose the PXIe-6383 when the application requires additional analog and digital channels.\n<\/p>\n<h3>Connectivity and Accessories<\/h3>\n<p>\nNI provides several compatible cabling and terminal options for integrating the PXIe-6381 into measurement and test systems.\n<\/p>\n<p>\nCompatible connectivity options include:\n<\/p>\n<ul>\n<li>SHC68-68 shielded cable<\/li>\n<li>SHC68-68-EPM shielded cable<\/li>\n<li>TB-2706 front-mount screw terminal block<\/li>\n<li>TBX-68 connector block<\/li>\n<li>BNC-2090A<\/li>\n<li>BNC-2110<\/li>\n<li>BNC-2120<\/li>\n<li>SCB-68A shielded connector block<\/li>\n<li>CB-68LP<\/li>\n<li>CB-68LPR<\/li>\n<\/ul>\n<h3>Software and Driver Support<\/h3>\n<p>\nThe PXIe-6381 is supported by <strong>\u041d\u0418-DAQmx<\/strong>, NI&#8217;s driver and configuration software for data acquisition hardware.\n<\/p>\n<p>\nThe device can be incorporated into software environments used for measurement, logging, analysis, and automated test development.\n<\/p>\n<ul>\n<li>\u041d\u0418-DAQmx<\/li>\n<li>\u041b\u0430\u0431\u0412\u044c\u044e<\/li>\n<li>FlexLogger<\/li>\n<li>TestStand-based automated test systems<\/li>\n<li>Custom DAQ applications<\/li>\n<\/ul>\n<h3>Industries<\/h3>\n<ul>\n<li>Electronic Manufacturing<\/li>\n<li>Automotive Testing<\/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>\u041f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0430\u044f \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0437\u0430\u0446\u0438\u044f<\/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>Laboratory Measurement<\/li>\n<li>Production Test<\/li>\n<li>Automated Test Equipment<\/li>\n<\/ul>\n<h3>Applications<\/h3>\n<h4>Data Acquisition<\/h4>\n<p>\nThe PXIe-6381 provides high-resolution analog acquisition for voltage measurements, sensor acquisition, and engineering test applications.\n<\/p>\n<h4>Automated Functional Test<\/h4>\n<p>\nAnalog input, analog output, digital I\/O, and counter\/timer functions can be coordinated within automated DUT validation sequences.\n<\/p>\n<h4>Data Logging<\/h4>\n<p>\nThe module can acquire and record multiple analog channels for laboratory experiments, engineering validation, and long-duration monitoring.\n<\/p>\n<h4>Electronic Validation<\/h4>\n<p>\nThe PXIe-6381 can generate stimulus, acquire DUT responses, monitor digital states, and perform counter\/timer measurements within electronic validation systems.\n<\/p>\n<h4>Sensor Measurement<\/h4>\n<p>\nThe 18-bit analog input subsystem and multiple programmable voltage ranges make the module suitable for compatible voltage-output sensors and conditioned sensor signals.\n<\/p>\n<h4>Control Systems<\/h4>\n<p>\nAnalog outputs, digital I\/O, counter\/timers, and hardware-timed analog inputs allow the PXIe-6381 to perform measurement and control functions within compatible automated systems.\n<\/p>\n<h3>Recommended Related Products<\/h3>\n<table>\n<tr>\n<td width=\"180\">\n<strong>NI PXIe-6381<\/strong>\n<\/td>\n<td>\n18-bit PXI Express multifunction I\/O module with 16 AI, 2 AO, 24 DIO, and four 32-bit counter\/timers.\n<\/td>\n<\/tr>\n<tr>\n<td>\n<strong>NI PXIe-6383<\/strong>\n<\/td>\n<td>\nHigher-channel-density version with 32 analog inputs, 4 analog outputs, and 48 digital I\/O lines for larger automated test systems.\n<\/td>\n<\/tr>\n<tr>\n<td>\n<a href=\"https:\/\/pxisource.com\/ru\/product\/pxi-6259\/\"><strong>NI PXI-6259<\/strong><\/a>\n<\/td>\n<td>\nMultifunction DAQ module for applications requiring a proven PXI analog and digital data acquisition platform.\n<\/td>\n<\/tr>\n<tr>\n<td>\n<a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-6612\/\"><strong>NI PXIe-6612<\/strong><\/a>\n<\/td>\n<td>\nDedicated counter\/timer module for applications requiring additional frequency, encoder, pulse, PWM, and event-counting capability.\n<\/td>\n<\/tr>\n<tr>\n<td>\n<a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-4322\/\"><strong>NI PXIe-4322<\/strong><\/a>\n<\/td>\n<td>\nAnalog output module for applications requiring additional dedicated analog stimulus and control channels.\n<\/td>\n<\/tr>\n<\/table>\n<h3>Why Choose NI PXIe-6381?<\/h3>\n<ul>\n<li>18-bit analog input resolution<\/li>\n<li>16 single-ended analog inputs<\/li>\n<li>8 differential analog inputs<\/li>\n<li>625 kS\/s maximum analog input sampling rate<\/li>\n<li>Multiple programmable input ranges up to \u00b110 V<\/li>\n<li>2 analog output channels<\/li>\n<li>Up to 2.86 MS\/s analog output update rate<\/li>\n<li>24 digital I\/O lines<\/li>\n<li>Four 32-bit counter\/timers<\/li>\n<li>NI STC3 timing and synchronization<\/li>\n<li>Retriggerable measurement capability<\/li>\n<li>\u0410\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u0430 PXI Express<\/li>\n<li>NI-DAQmx support<\/li>\n<li>Suitable for data logging and control<\/li>\n<li>Designed for automated test and measurement<\/li>\n<\/ul>\n<h3>Frequently Asked Questions<\/h3>\n<h4>What is the NI PXIe-6381?<\/h4>\n<p>\nThe NI PXIe-6381 is an 18-bit PXI Express multifunction I\/O module that combines analog input, analog output, digital I\/O, and counter\/timer functionality for data acquisition, control, and automated test applications.\n<\/p>\n<h4>What is the part number of the PXIe-6381?<\/h4>\n<p>\nThe NI PXIe-6381 part number is <strong>790689-01<\/strong>.\n<\/p>\n<h4>How many analog input channels does the PXIe-6381 have?<\/h4>\n<p>\nThe PXIe-6381 provides up to <strong>16 single-ended analog input channels<\/strong> \u0438\u043b\u0438 <strong>8 differential analog input channels<\/strong>.\n<\/p>\n<h4>What is the analog input resolution of the PXIe-6381?<\/h4>\n<p>\nThe PXIe-6381 provides <strong>18-bit analog input resolution<\/strong>.\n<\/p>\n<h4>What is the maximum analog input sample rate?<\/h4>\n<p>\nThe PXIe-6381 provides a maximum analog input sample rate of <strong>625 kS\/s<\/strong>.\n<\/p>\n<h4>Does the PXIe-6381 support simultaneous sampling?<\/h4>\n<p>\nNo. The PXIe-6381 uses a multiplexed analog input architecture and does not provide simultaneous sampling across multiple analog input channels.\n<\/p>\n<h4>What analog input ranges does the PXIe-6381 support?<\/h4>\n<p>\nThe PXIe-6381 supports programmable bipolar input ranges of <strong>\u00b10.1 V, \u00b10.2 V, \u00b10.5 V, \u00b11 V, \u00b12 V, \u00b15 V, and \u00b110 V<\/strong>.\n<\/p>\n<h4>How many analog outputs does the PXIe-6381 have?<\/h4>\n<p>\nThe PXIe-6381 provides <strong>2 analog output channels<\/strong> with a maximum update rate of up to <strong>2.86 MS\/s<\/strong>.\n<\/p>\n<h4>How many digital I\/O lines does the PXIe-6381 provide?<\/h4>\n<p>\nThe PXIe-6381 provides <strong>24 digital I\/O lines<\/strong>.\n<\/p>\n<h4>How many counters does the PXIe-6381 have?<\/h4>\n<p>\nThe module provides <strong>four 32-bit counter\/timers<\/strong> for frequency measurement, event counting, encoder measurements, PWM, pulse generation, and other timing applications.\n<\/p>\n<h4>Does the PXIe-6381 use NI STC3 technology?<\/h4>\n<p>\nYes. The PXIe-6381 incorporates NI STC3 timing and synchronization technology, providing independent analog and digital timing engines and advanced hardware-timed measurement functionality.\n<\/p>\n<h4>Can the PXIe-6381 generate analog signals?<\/h4>\n<p>\nYes. The two analog output channels can generate programmable voltage signals at update rates up to 2.86 MS\/s for stimulus, control, and automated test applications.\n<\/p>\n<h4>Can the PXIe-6381 be used for data logging?<\/h4>\n<p>\nYes. Data logging is one of the primary applications for the PXIe-6381. Its 18-bit analog inputs, programmable voltage ranges, hardware timing, and PXI Express architecture make it suitable for laboratory and automated data acquisition systems.\n<\/p>\n<h4>What is the difference between PXIe-6381 and PXIe-6383?<\/h4>\n<p>\nBoth devices provide 18-bit, 625 kS\/s analog acquisition. The PXIe-6381 provides 16 AI, 2 AO, and 24 DIO, while the PXIe-6383 provides 32 AI, 4 AO, and 48 DIO. The PXIe-6383 is therefore better suited to applications requiring higher channel density.\n<\/p>\n<h4>What accessories can be used with the PXIe-6381?<\/h4>\n<p>\nNI lists compatible accessories including the SHC68-68 and SHC68-68-EPM cables, TB-2706, TBX-68, BNC-2090A, BNC-2110, BNC-2120, SCB-68A, CB-68LP, and CB-68LPR connectivity accessories.\n<\/p>\n<h4>What software supports the PXIe-6381?<\/h4>\n<p>\nThe PXIe-6381 is supported by NI-DAQmx and can be integrated into NI software environments such as LabVIEW, FlexLogger, and automated test applications developed around TestStand.\n<\/p>\n<h4>What applications are suitable for the PXIe-6381?<\/h4>\n<p>\nTypical applications include high-resolution voltage measurement, sensor data acquisition, data logging, automated functional test, electronic validation, closed-loop control, digital control, frequency and encoder measurement, research, and production test.\n<\/p>\n<h4>What should I check before purchasing a PXIe-6381?<\/h4>\n<p>\nBefore purchasing a PXIe-6381, verify the required analog input channel count, 18-bit resolution, 625 kS\/s sampling rate, analog input range, analog output requirements, digital I\/O requirements, counter\/timer requirements, PXI Express chassis compatibility, connector and cabling requirements, and NI-DAQmx software compatibility.\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 PXIe-6381 18-Bit PXI Express Multifunction I\/O Module<\/strong> combines 16 analog inputs at up to 625 kS\/s, 2 analog outputs at up to 2.86 MS\/s, 24 digital I\/O lines, and four 32-bit counter\/timers in a single modular instrument. Its 18-bit measurement architecture, multiple programmable input ranges, NI STC3 timing technology, and NI-DAQmx integration make it a strong choice for high-accuracy data acquisition, data logging, automated test, sensor measurement, electronic validation, and control applications.<\/p>","protected":false},"excerpt":{"rendered":"<p>Current Flow Direction\uff1a\u2014<br \/>\nMaximum Number of Single-Ended Analog Input Channels\uff1a16<br \/>\nAnalog Input Resolution\uff1a18 bits<br \/>\nSimultaneous Sampling\uff1aNo<br \/>\nMaximum Sample Rate\uff1a625 kS\/s<br \/>\nAnalog Input Absolute Accuracy\uff1a980 \u03bcV<\/p>","protected":false},"featured_media":33621,"template":"","meta":{"_acf_changed":false},"product_brand":[18],"product_cat":[667],"product_tag":[],"class_list":["post-34795","product","type-product","status-publish","has-post-thumbnail","product_brand-national-instruments","product_cat-pxi-modules","first","instock","shipping-taxable","purchasable","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 PXIe-6381 PXI Multifunction I\/O Module 790689-01, In Stock | Project Pricing<\/title>\n<meta name=\"description\" content=\"NI PXIe-6381 is an 18-bit, 625 kS\/s PXI Express multifunction I\/O module with 16 AI, 2 AO, 24 DIO and four 32-bit counters for automated test and DAQ.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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