NI PXI-6123

Product Name: Simultaneous Sampling S Series Multifunction DAQ Module

Product Description: The PXI-6123 is S-series multifunction DAQ module with simultaneous sampling analog input channels, designed for multi-channel transient recording and phase-sensitive measurement.

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Description

Technical Specifications: Analog Input: 8 differential channels, 16 bit resolution, 500 kS/s per channel simultaneous sampling Input Voltage Ranges: ±10 V, ±5 V, ±2.5 V, ±1.25 V Digital I/O: 8 bidirectional digital lines Counters/Timers: 2 × 24 bit counters Trigger: Digital triggering supported Input FIFO: 16 or 32 samples

Function Features: Dedicated ADC per analog input channel for true simultaneous sampling. Programmable input voltage ranges. Hardware digital trigger. Supports NI-DAQmx, compatible with LabVIEW and text programming languages.

Application Scenarios: Transient signal recording, ultrasound and sonar testing, telecom manufacturing test, IF digitization, high-energy physics experiment, multi-channel phase measurement.

Material Composition: Front panel: anodized aluminum alloy. PCB: multi-layer high precision FR4 board with analog shielding. Connector: shielded multi-pin front connector.

Structural Features: 3U single-slot PXI module. Independent analog front-end for each input channel. Isolation layout between analog and digital circuits.

Working Principle: Each analog input channel has dedicated ADC, sampling synchronously under shared clock. Converted digital samples stored in on-board FIFO then transferred to host controller over PXI bus. Counters and digital I/O handle timing and discrete signal.

Installation Requirements: Install in 3U PXI chassis. Use shielded cable for analog input wiring. Configure NI-DAQmx driver. Use PXI trigger bus for multi-module synchronization.

Usage Notes: Do not exceed maximum input voltage. Use differential wiring to reject common mode noise. Keep signal cables short for high frequency transient signals. Run self-calibration regularly.

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