NI PCI-6281 18-Bit, 500 kS/s (Multichannel), 625 kS/s (1-Channel), 16 Analog Inputs

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  • Two 16-bit analog outputs (2.8 MS/s); 24 digital I/O; two 32-bit, 80 MHz counters
  • Programmable 40 kHz lowpass filters
  • NI-MCal calibration technology for increased measurement accuracy
  • Correlated DIO (8 clocked lines, 10 MHz); analog and digital triggering
  • NI-DAQmx driver software and NI LabVIEW SignalExpress LE interactive data-logging software
  • View Data Sheet
  • View Support Resources
The NI PCI-6281 is a high-accuracy multifunction M Series data acquisition (DAQ) board optimized for 18-bit analog input accuracy. This resolution is equivalent to 5½ digits for DC measurements. To ensure accuracy, the NI-PGIA 2 amplifier technology is optimized for high linearity and fast settling to 18 bits, and programmable lowpass filters reject high-frequency noise and prevent aliasing.

High-accuracy M Series devices feature programmable offsets and references on the analog output channels to obtain maximum 16-bit resolution on any custom signal. High-accuracy M Series multifunction DAQ devices are ideal for applications including device test and characterization, and for sensor and signal measurements requiring instrument-class accuracy. To download the certification certificate for a particular DAQ device, visit ni.com/calibration, select "Generate a copy of your current calibration online," and enter the serial number of the DAQ device.

Driver Software
M Series devices work with multiple operating systems using three driver software options including NI-DAQmx, NI-DAQmx Base, and the Measurement Hardware DDK. Browse the information in the Resources tab to learn more about driver software or download a driver. M Series devices are not compatible with the Traditional NI-DAQ (Legacy) driver.

Application Development Environments
With NI LabVIEW, you can create custom data acquisition applications with the ease of graphical programming and power of more than 500 analysis functions and advanced programming tools. LabVIEW Full and Professional Development Systems include LabVIEW SignalExpress for interactive data logging. M Series DAQ devices are compatible with the following versions (or later) of NI application software – LabVIEW 7.x, LabWindows™/CVI 7.x, or Measurement Studio 7.x; LabVIEW SignalExpress 1.x; or LabVIEW with the LabVIEW Real-Time Module 7.1. M Series DAQ devices are also compatible with Visual Studio .NET, ANSI C/C++, and Visual Basic 6.0.



The mark LabWindows is used under a license from Microsoft Corporation. Windows is a registered trademark of Microsoft Corporation in the United States and other countries.

Specifications Documents

Specifications Summary

General
Product Name PCI-6281
Product Family Multifunction Data Acquisition
Form Factor PCI
Part Number 779109-01
Operating System/Target Windows , Real-Time , Linux , Mac OS
LabVIEW RT Support Yes
DAQ Product Family M Series
Measurement Type Quadrature encoder , Digital , Voltage , Frequency
Isolation Type None
RoHS Compliant Yes
Signal Conditioning Low-pass filtering
Analog Input
Channels 16 , 8
Single-Ended Channels 16
Differential Channels 8
Resolution 18 bits
Sample Rate 625 kS/s
Throughput (All Channels) 500 kS/s
Max Voltage 10 V
Maximum Voltage Range -10 V - 10 V
Maximum Voltage Range Accuracy 980 µV
Maximum Voltage Range Sensitivity 24 µV
Minimum Voltage Range -100 mV - 100 mV
Minimum Voltage Range Accuracy 28 µV
Minimum Voltage Range Sensitivity 0.8 µV
Number of Ranges 7
Simultaneous Sampling No
On-Board Memory 4095 samples
Analog Output
Channels 2
Resolution 16 bits
Max Voltage 10 V
Maximum Voltage Range -10 V - 10 V
Maximum Voltage Range Accuracy 1540 µV
Minimum Voltage Range -1 V - 1 V
Minimum Voltage Range Accuracy 259 µV
Update Rate 2.86 MS/s
Current Drive Single 5 mA
Digital I/O
Bidirectional Channels 24
Input-Only Channels 0
Output-Only Channels 0
Timing Software , Hardware
Clocked Lines 8
Maximum Clock Rate 10 MHz
Logic Levels TTL
Input Current Flow Sinking , Sourcing
Output Current Flow Sinking , Sourcing
Programmable Input Filters Yes
Supports Programmable Power-Up States? Yes
Current Drive Single 24 mA
Current Drive All 448 mA
Watchdog Timer No
Supports Handshaking I/O? No
Supports Pattern I/O? Yes
Maximum Input Range 0 V - 5 V
Maximum Output Range 0 V - 5 V
Counter/Timers
Counters 2
Number of DMA Channels 2
Buffered Operations Yes
Debouncing/Glitch Removal Yes
GPS Synchronization No
Maximum Range 0 V - 5 V
Max Source Frequency 80 MHz
Pulse Generation Yes
Resolution 32 bits
Timebase Stability 50 ppm
Logic Levels TTL
Physical Specifications
Length 15.5 cm
Width 9.7 cm
I/O Connector 68-pin VHDCI female
Timing/Triggering/Synchronization
Triggering Digital , Analog
Synchronization Bus (RTSI) Yes

NI PCI-6281 Complete Package

Each NI PCI-6281 requires:

Roll over icons above to learn why you need each item in the package.

1 Connector Block

1 Cable

NI PCI-6281

Software

NI PCI-6281 and Accessories

NI PCI-6281 - 779109-01 Qty $ 1,828 each
Required Accessories
Connector Block - Screw Terminal
SCB-68A - 782536-01
Qty $ 322 each
Cable - Shielded
SHC68-68-EPM Cable (2m) - 192061-02
Select length:
Qty $ 140 each
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Optional Accessories
Hardware Subtotal: $ 2,290

Software

Note : You should only purchase this device without software if you already own compatible application software. [View Full List]
LabVIEW Full Development System for Windows (English) , 1 year SSP - 776670-35 Qty $ 2,699 each
LabVIEW Application Builder for Windows - 776675-35 Qty $ 999 each
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Package Price: $ 2,290

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Extended Warranties

National Instruments designs and manufactures all products to minimize failures, however unexpected failures can still occur. Extended warranties provide a fixed economical price at the time of system purchase, covering any repair costs for up to three years. In addition, they offer the following benefits:

  • Significant cost savings compared to individual repair incidents
  • Fault location, diagnostics, and repair by NI any time the system product fails
  • All parts and labor costs covered as well as any adjustments needed to restore the hardware to manufacturing specifications

For more information about your warranty options:

Calibration

NI recognizes the need to maintain properly calibrated devices for high-accuracy measurements. NI provides manual calibration procedures, services to recalibrate your products, and automated calibration software to calibrate many NI measurement products.

Training

NI training is the fastest, most certain route to productivity with NI tools and successful application development.

Repair Services

Return your registered product under warranty at no additional labor and parts cost. NI offers fault location, diagnostics, and repair any time the system fails as well as any adjustments needed to restore the hardware to manufacturing specifications.

Technical Support

ni.com/support