Product Introduction
The NI PXI-6289 is a high-accuracy M Series multifunction data acquisition module designed for precision voltage measurement, automated testing, industrial monitoring, laboratory research, and mixed-signal control applications. It combines analog input, analog output, digital I/O, counter/timer functions, triggering, and PXI synchronization resources in a single modular device.
With 32 single-ended or 16 differential analog input channels, 18-bit resolution, and programmable input ranges from ±0.1 V to ±10 V, the PXI-6289 is particularly suitable for applications requiring accurate measurement of low-level and general-purpose voltage signals.
Product Overview
The PXI-6289 belongs to the NI M Series high-accuracy multifunction I/O family. Its multiplexed analog input architecture provides a maximum sampling rate of 625 kS/s when measuring one channel and a maximum aggregate rate of 500 kS/s during multichannel acquisition.
The module includes a selectable analog input filter that can help reduce high-frequency noise in precision measurement applications. It also provides high input impedance, strong common-mode rejection, programmable voltage ranges, and analog input overvoltage protection.
In addition to precision analog acquisition, the PXI-6289 includes four 16-bit analog outputs, 48 programmable digital I/O lines, two 32-bit counter/timers, analog triggering, digital triggering, and PXI timing resources.
The PXI-6289 is supported by NI-DAQmx and integrates with LabVIEW, NI MAX, TestStand, and supported text-based programming environments for automated test and measurement development.
Key Features
18-Bit Analog Input for High-Accuracy Measurement
The PXI-6289 provides higher analog input resolution than many general-purpose 16-bit multifunction DAQ modules.
- 18-bit analog-to-digital conversion
- 32 single-ended analog inputs
- 16 differential analog inputs
- High input impedance
- Low input bias current
Advantage: The high-resolution input subsystem helps detect smaller voltage changes and supports precision sensor measurement, calibration, and laboratory applications.
Programmable Input Ranges from ±0.1 V to ±10 V
The PXI-6289 supports seven selectable voltage ranges for signals with different amplitudes.
- ±0.1 V input range
- ±0.2 V input range
- ±0.5 V input range
- ±1 V input range
- ±2 V input range
- ±5 V input range
- ±10 V input range
Advantage: Narrower ranges improve effective measurement sensitivity when working with low-level signals, while wider ranges support common industrial and electronic voltage measurements.
Flexible Sampling for Single-Channel and Multichannel Acquisition
The PXI-6289 provides different maximum sampling performance depending on the acquisition configuration.
- Up to 625 kS/s on one analog input channel
- Up to 500 kS/s aggregate for multichannel acquisition
- 50 ns timing resolution
- 4,095-entry scan list memory
- No minimum sampling rate
Advantage: The flexible sampling architecture supports both faster single-channel measurements and high-channel-count monitoring applications.
Selectable Analog Input Filtering
The PXI-6289 includes an analog input filter for applications requiring improved rejection of high-frequency noise.
- 750 kHz small-signal bandwidth with the filter disabled
- 40 kHz small-signal bandwidth with the filter enabled
- Improved low-frequency measurement stability
- Reduced high-frequency noise
Advantage: Engineers can select higher bandwidth for faster signals or enable filtering for precision measurements where noise reduction is more important.
Four Analog Outputs for Waveform Generation and Control
The PXI-6289 provides four analog output channels for generating voltage signals and controlling external devices.
- 4 analog output channels
- 16-bit digital-to-analog conversion
- Up to 2.86 MS/s with one active output
- Up to 1.25 MS/s per channel with four active outputs
- Programmable ±1 V, ±2 V, ±5 V, and ±10 V ranges
Advantage: Four integrated outputs allow the module to generate multiple test signals, simulate sensor outputs, and perform closed-loop measurement and control tasks.
48 Programmable Digital I/O Lines
The PXI-6289 includes a high-density digital subsystem for device control, monitoring, triggering, and waveform operations.
- 48 total digital I/O lines
- 32 lines on Port 0
- 16 additional PFI and digital lines
- 5 V TTL and CMOS compatibility
- Individually programmable direction
- Up to 10 MHz hardware-timed digital operation
Advantage: High digital channel density reduces the need for separate digital I/O modules in complex automated test systems.
Two 32-Bit Counter/Timers
The PXI-6289 provides two general-purpose counter/timers for event, frequency, pulse, and position measurement.
- Two 32-bit counter/timers
- Edge counting
- Pulse and period measurement
- Two-edge separation measurement
- Quadrature encoder measurement
- Pulse-train generation
Advantage: The counter subsystem supports timing, motion, encoder, PWM, and event-measurement applications without requiring separate hardware.
PXI Timing and Synchronization Resources
The PXI-6289 provides hardware routing and synchronization features for coordinated modular test systems.
- PXI trigger bus support
- PXI Star trigger support
- Phase-locked loop synchronization
- Analog and digital triggering
- Six DMA channels
Advantage: PXI timing resources allow the module to synchronize with switching devices, signal generators, digitizers, and other DAQ modules.
Technical Specifications
| Parameter | Description |
|---|---|
| Product Type | PXI High-Accuracy Multifunction I/O Module |
| DAQ Family | NI M Series |
| Single-Ended Analog Inputs | 32 Channels |
| Differential Analog Inputs | 16 Channels |
| Analog Input Resolution | 18 Bits |
| Single-Channel AI Sample Rate | Up to 625 kS/s |
| Multichannel AI Sample Rate | Up to 500 kS/s Aggregate |
| Sampling Architecture | Multiplexed |
| Analog Input Ranges | ±0.1 V, ±0.2 V, ±0.5 V, ±1 V, ±2 V, ±5 V, and ±10 V |
| Input Coupling | DC |
| Small-Signal Bandwidth | 750 kHz with Filter Off; 40 kHz with Filter On |
| Common-Mode Rejection Ratio | 110 dB from DC to 60 Hz |
| Analog Input FIFO | 2,047 Samples |
| Scan List Memory | 4,095 Entries |
| Analog Output Channels | 4 Channels |
| Analog Output Resolution | 16 Bits |
| Maximum AO Update Rate | 2.86 MS/s for One Channel; 1.25 MS/s per Channel for Four Channels |
| Analog Output Ranges | ±1 V, ±2 V, ±5 V, and ±10 V |
| Digital I/O | 48 Programmable Lines |
| Digital Signal Compatibility | 5 V TTL/CMOS |
| Maximum Digital Sample Clock | Up to 10 MHz |
| Counter/Timers | Two 32-Bit Counter/Timers |
| Counter Base Clocks | 80 MHz, 20 MHz, and 100 kHz |
| Analog Triggering | Edge, Edge with Hysteresis, and Window Triggering |
| Bus Interface | PXI |
| DMA Channels | 6 |
| I/O Connectors | Two 68-Pin VHDCI Connectors |
| Form Factor | Standard 3U PXI |
| Driver Support | NI-DAQmx |
| Recommended Warm-Up Time | 15 Minutes |
| Calibration Interval | 2 Years |
| Operating Temperature | 0 °C to 55 °C |
Software Ecosystem
The PXI-6289 is supported by the NI software ecosystem for hardware configuration, precision acquisition, signal generation, synchronization, analysis, and automated test development.
- NI-DAQmx: Provides hardware configuration, analog and digital acquisition, waveform generation, triggering, timing, synchronization, and programming APIs.
- LabVIEW: Supports graphical development of measurement, control, signal-processing, and automated test applications.
- NI MAX: Enables hardware detection, channel testing, configuration, self-calibration, diagnostics, and system management.
- TestStand: Supports automated test sequencing, result processing, reporting, and production deployment.
- Programming APIs: NI-DAQmx can be used with supported C/C++, .NET, Python, and other development environments.
Industries
- Electronics Manufacturing
- Semiconductor Testing
- Industrial Automation
- Automotive and Transportation
- Aerospace and Defense
- Energy and Power Electronics
- Scientific Research
- Calibration Laboratories
Applications
Precision Voltage and Sensor Measurement
The 18-bit input subsystem and low-voltage input ranges make the PXI-6289 suitable for precision measurement applications.
- Low-level voltage acquisition
- Precision sensor measurement
- Calibration system development
- Laboratory instrumentation
Automated Electronic Testing
The PXI-6289 combines analog acquisition, waveform generation, digital control, triggering, and counters for automated validation systems.
- Functional verification
- Production testing
- Electronic device characterization
- Manufacturing quality control
Industrial Monitoring and Control
The module can monitor industrial voltage signals while controlling equipment through analog and digital outputs.
- Machine condition monitoring
- Process measurement
- Equipment diagnostics
- Factory automation
Low-Noise Data Logging
The selectable analog filter and 18-bit resolution support long-term acquisition of slowly changing or low-level signals.
- Environmental monitoring
- Product durability testing
- Temperature-transmitter monitoring
- Long-term laboratory recording
Motion, Encoder, and Timing Measurement
The integrated counter/timers provide measurement and generation functions for motion and timing applications.
- Quadrature encoder measurement
- Motor speed monitoring
- Frequency measurement
- Pulse and PWM generation
Comparison with Similar Products
| Model | Main Difference | Best Application |
|---|---|---|
|
NI PXI-6289 | Provides 18-bit analog inputs, seven programmable input ranges, four analog outputs, and 48 digital I/O lines. | High-accuracy mixed-signal measurement and control |
|
NI PXI-6281 | Provides high-accuracy M Series acquisition with fewer analog and digital I/O resources than the PXI-6289. | Compact precision measurement systems |
|
NI PXI-6259 | Provides 16-bit M Series multifunction acquisition with a broad combination of analog and digital I/O. | General-purpose PXI data acquisition |
|
NI PXIe-6363 | Uses the newer PXI Express X Series platform with higher-throughput timing and multifunction acquisition resources. | Modern high-speed PXI Express test systems |
Recommended Related Products
The following products can be combined with the PXI-6289 to create a complete PXI measurement and automated test system.
|
NI PXI-1042Q | PXI chassis for integrating multifunction DAQ, switching, and measurement modules. |
|
NI PXI-8108 | PXI embedded controller for running acquisition, analysis, and automated test applications. |
|
NI BNC-2110 | Shielded BNC connector block for convenient access to analog, digital, counter, and timing signals. |
|
NI SCB-68A | Shielded 68-pin connector block for custom field wiring and signal termination. |
|
NI SHC68-68-EPM | Shielded 68-pin VHDCI cable for connecting the module to compatible terminal blocks and accessories. |
Why Choose PXI-6289?
- 18-bit high-accuracy analog input resolution
- 32 single-ended or 16 differential analog inputs
- Seven programmable input ranges from ±0.1 V to ±10 V
- Up to 625 kS/s single-channel sampling
- Selectable analog input filtering
- Four 16-bit analog output channels
- 48 programmable digital I/O lines
- Two 32-bit counter/timers
- Advanced analog and digital triggering
- PXI timing, synchronization, and DMA support
- Supported by NI-DAQmx, LabVIEW, NI MAX, and TestStand
Frequently Asked Questions
How many analog input channels does the PXI-6289 provide?
The PXI-6289 provides 32 single-ended analog input channels or 16 differential analog input channels. Differential mode offers better common-mode noise rejection, while single-ended mode provides the maximum channel count.
What is the maximum sampling rate of the PXI-6289?
The maximum analog input sampling rate is 625 kS/s when acquiring from one channel. During multichannel acquisition, the maximum aggregate sampling rate is 500 kS/s and is shared among the active channels.
What makes the PXI-6289 different from a standard 16-bit DAQ module?
The PXI-6289 provides 18-bit analog input resolution, low-voltage ranges down to ±0.1 V, selectable analog filtering, four analog outputs, and 48 digital I/O lines. These features make it more suitable for precision and low-level measurement applications than many general-purpose 16-bit DAQ devices.
Conclusion
The NI PXI-6289 high-accuracy multifunction DAQ module provides a comprehensive solution for applications requiring precise analog acquisition, waveform generation, digital control, timing, and synchronization.
With 18-bit analog inputs, seven programmable ranges, four analog outputs, 48 digital I/O lines, two counters, selectable filtering, and complete NI software support, the PXI-6289 is an excellent choice for precision testing, industrial monitoring, calibration, scientific research, automated validation, and mixed-signal measurement systems.
