Product Introduction
The NI PXI-6123 is a high-speed multifunction data acquisition module designed for PXI-based automated test systems, electronic validation, laboratory research, and advanced measurement applications. As part of the NI S Series DAQ family, it provides simultaneous analog sampling, high-resolution measurement, analog output, digital I/O, and counter/timer functions.
Featuring 8 analog input channels with 16-bit resolution and 500 kS/s simultaneous sampling per channel, the PXI-6123 delivers accurate and synchronized data acquisition for applications requiring high-speed signal measurement and analysis.
Product Overview
The PXI-6123 is a multifunction PXI DAQ module optimized for applications requiring simultaneous analog acquisition. Unlike multiplexed DAQ devices, the S Series architecture uses dedicated ADCs for each analog input channel, providing excellent phase matching and timing accuracy.
The module integrates analog input, analog output, digital I/O, and counter/timer resources into a single PXI slot, making it suitable for complex automated test, signal analysis, and research measurement systems.
With NI-DAQmx driver support and seamless integration with LabVIEW and TestStand, the PXI-6123 enables rapid development of scalable PXI measurement platforms.
Key Features
8 Simultaneous Analog Input Channels
The PXI-6123 provides eight independent analog input channels with simultaneous sampling capability.
- 8 analog input channels
- Independent ADC per channel
- Simultaneous sampling architecture
- 16-bit ADC resolution
- High-accuracy signal acquisition
Advantage: Maintains accurate timing relationships between multiple measured signals.
500 kS/s Per Channel Sampling
The high-speed acquisition architecture supports demanding dynamic measurement applications.
- 500 kS/s maximum sampling rate per channel
- Hardware-timed acquisition
- Synchronized multi-channel measurement
- Transient signal capture
- Dynamic signal analysis
Advantage: Enables accurate measurement of rapidly changing electrical signals.
16-Bit High-Resolution ADC
The PXI-6123 provides precise analog-to-digital conversion for measurement applications.
- 16-bit resolution
- High dynamic range
- Low-noise measurement
- Improved signal accuracy
- Reliable repeatability
Advantage: Captures detailed signal variations in test and research applications.
4 Analog Output Channels
The module provides analog signal generation capability for stimulus and control applications.
- 4 analog output channels
- 16-bit DAC resolution
- Waveform generation
- Signal simulation
- Closed-loop testing support
Advantage: Combines measurement and signal generation in one PXI module.
Digital I/O Capability
Integrated digital lines provide flexible control and synchronization functions.
- Digital input/output channels
- External device triggering
- Control signal generation
- Test fixture control
- Automation interface
Advantage: Simplifies integration with external equipment and test hardware.
Counter/Timer Functions
The PXI-6123 includes onboard timing resources for measurement and control.
- Event counting
- Frequency measurement
- Pulse generation
- Timing operations
- Encoder applications
Advantage: Provides additional timing capability without external hardware.
PXI Modular Architecture
The PXI-6123 integrates into scalable PXI automated test systems.
- PXI bus interface
- Multi-module synchronization
- Shared PXI timing resources
- Expandable system design
- Industrial test platform compatibility
Advantage: Enables integration with switches, digitizers, RF instruments, and controllers.
Technical Specifications
| Parameter | Description |
|---|---|
| Product Type | PXI S Series Multifunction DAQ Module |
| Analog Input Channels | 8 Channels |
| ADC Resolution | 16 Bits |
| Maximum Sampling Rate | 500 kS/s per Channel |
| Input Configuration | Differential Analog Input |
| Analog Output Channels | 4 Channels |
| DAC Resolution | 16 Bits |
| Digital I/O | Supported |
| Counter/Timers | Supported |
| ADC Architecture | Dedicated ADC per Channel |
| Bus Interface | PXI |
| Driver | NI-DAQmx |
| Programming Support | LabVIEW, TestStand, Python, C/C++, C#, .NET |
Software Ecosystem
The PXI-6123 integrates with NI software tools for high-speed data acquisition and automated testing.
- NI-DAQmx: Provides hardware configuration, acquisition, timing, triggering, and programming support.
- LabVIEW: Enables graphical development of measurement and automation applications.
- TestStand: Supports integration into automated production test sequences.
- NI MAX: Provides hardware configuration and diagnostics.
- Python, C/C++, C#, .NET: Supports custom DAQ application development.
Industries
- Automated Test Equipment
- Aerospace and Defense
- Automotive Testing
- Electronics Validation
- Industrial Automation
- Research Laboratories
- Semiconductor Testing
- Energy Systems
Applications
High-Speed Data Acquisition
The PXI-6123 provides synchronized acquisition for dynamic measurement applications.
- Signal monitoring
- Transient analysis
- Waveform acquisition
- Multi-channel testing
Automated Test Systems
The module supports PXI-based production and validation test platforms.
- Electronic testing
- Functional verification
- Device characterization
- Test fixture integration
Research and Laboratory Measurement
High-resolution simultaneous acquisition supports experimental systems.
- Scientific experiments
- Signal analysis
- Prototype testing
- Measurement automation
Control and Simulation
Analog output and digital functions support closed-loop applications.
- Hardware-in-the-loop testing
- Signal generation
- Control system validation
- Simulation platforms
Comparison with Similar Products
| Model | Main Difference | Best Application |
|---|---|---|
| NI PXI-6123 | 8-channel simultaneous sampling S Series DAQ with 16-bit resolution. | High-speed synchronized measurement |
| NI PXI-6251 | M Series multifunction DAQ with multiplexed analog inputs. | General-purpose DAQ systems |
| NI PXI-6133 | High-speed S Series DAQ with higher sampling performance. | Advanced signal acquisition |
| NI PXIe-6343 | Modern X Series PXI Express multifunction DAQ module. | New-generation PXI Express systems |
Recommended Related Products
| NI PXI-1045 | Large PXI chassis for advanced measurement systems. |
| NI PXIe-8880 | High-performance PXI Express embedded controller. |
| NI PXI-6251 | Multifunction M Series DAQ module for general measurement. |
| NI PXI-6133 | High-speed simultaneous sampling DAQ module. |
Why Choose PXI-6123?
- 8-channel simultaneous analog input
- 16-bit ADC resolution
- 500 kS/s per channel sampling
- 4 analog output channels
- Digital I/O and counter functions
- PXI synchronization capability
- NI-DAQmx software support
- Ideal for high-speed automated testing
Frequently Asked Questions
What is the difference between PXI-6123 and PXI-6251?
The PXI-6123 uses S Series architecture with simultaneous sampling on each analog input channel, while the PXI-6251 uses M Series multiplexed acquisition architecture.
What applications use PXI-6123?
The PXI-6123 is commonly used for high-speed data acquisition, electronic validation, automated testing, research measurement, and dynamic signal analysis.
Does PXI-6123 support LabVIEW?
Yes. The PXI-6123 is supported by NI-DAQmx and integrates with LabVIEW, TestStand, Python, C/C++, and .NET development environments.
Conclusion
The NI PXI-6123 multifunction DAQ module provides high-speed simultaneous analog acquisition with 16-bit resolution, analog output, digital I/O, and timing functions in a PXI modular platform. It is an excellent solution for automated test systems, high-speed measurement, electronic validation, and laboratory research applications requiring synchronized multi-channel data acquisition.
