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National Instruments PXI-6123 Simultaneous-sampling multifunction DAQ module
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National Instruments · PXI

PXI-6123

The NI PXI-6123 is an S Series multifunction DAQ module with eight simultaneous-sampling, 16-bit analog inputs operating at up to 500 kS/s per channel. It also provides eight digital I/O lines and two 24-bit counter/timers.

ManufacturerNational Instruments
ModelPXI-6123
Part Number779181-01
Product TypeSimultaneous-sampling multifunction DAQ module
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Analog inputs8 differential channels
Resolution16-bit
Maximum sampling rate500 kS/s per channel, simultaneous
Digital I/O8 bidirectional lines
Counter/timers2 × 24-bit
Analog outputsNone
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Overview

Product overview

Key product information and technical features.

The PXI-6123 uses a dedicated 16-bit analog-to-digital converter for each of its eight analog input channels. This simultaneous-sampling architecture acquires multiple channels together rather than sequentially through a shared converter.

Alongside analog acquisition, the module provides correlated digital I/O and general-purpose counter/timers. Its PXI trigger-bus and star-trigger connections support integration into triggered measurement systems.

  • Dedicated ADC per analog input channel for simultaneous acquisition.
  • Selectable bipolar analog input ranges from ±1.25 V to ±10 V.
  • Eight TTL-compatible correlated digital I/O lines.
  • Two general-purpose 24-bit counter/timers.
  • Digital triggering for acquisition control.
Verified specifications

Technical data

Verified product specifications.

Differential analog input channels8 channels
Analog input resolution16 bits
Maximum analog input sampling rate500 kS/s/channel
Analog input ranges±10, ±5, ±2.5, ±1.25 V
Analog input couplingDC
Digital I/O channels8 bidirectional; TTL/CMOS compatible
Counter/timers2 up/down counter/timers, 24-bit resolution
I/O connector68-pin male SCSI-II type
Dimensions excluding connectors16.0 × 10.0 cm
Operating temperature0 to 50 °C
Condition & included items

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Condition

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Included

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Compatibility

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National Instruments

Manufacturer

PXI

Modular instrumentation platform

S Series

Simultaneous-sampling DAQ family

PXI-6123

Analog input, digital I/O, and timing module

Check chassis slot support, signal wiring, and driver version before integration; this model has no analog outputs.
Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI PXI-6123 Product PageProduct Page · ni.com
Open →
NI 6122/6123 SpecificationsSpecifications · docs-be.ni.com
Open →
S Series User ManualUser Manual · docs-be.ni.com
Open →
S Series wiring, triggering, and NI 6123 pinout referenceTechnical resource
Open →
Shipping, warranty & returns

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Warranty
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Returns
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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Is 500 kS/s shared across the analog input channels?

No. The specified maximum is 500 kS/s per channel, with simultaneous sampling and a dedicated ADC for each channel.

Does the PXI-6123 generate analog output signals?

No. It provides analog inputs, digital I/O, and counter/timers, but no analog output channels.

Where can I find the PXI-6123 connector pinout?

The NI 6122/6123 section in Appendix A of the S Series User Manual includes the NI 6123 I/O connector pinout.

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