The NI SCXI-1600 is a USB data acquisition module that serves as a controller and digitizer for National Instruments SCXI chassis systems. It enables plug-and-play DAQ functionality by interfacing with signal conditioning modules for analog input, analog output, digital I/O, and switching applications. The module features a 16-bit ADC with 200 kS/s per-channel sampling rate and supports acquisition of up to 352 analog signals when multiplexed through compatible SCXI modules. Input ranges typically span ±0.05 V to ±10 V depending on connected SCXI modules.
Technical Specifications
Analog Input
• Resolution: 16-bit ADC
• Sampling Rate: Up to 200 kS/s per channel
• Maximum Analog Channels: Up to 352 (multiplexed through single ADC with SCXI modules)
• Input Range: Typically ±0.05 V to ±10 V (module-dependent)
Data Transfer and Connectivity
• Interface: USB 2.0 full-speed compliant
• Data Transfer: Digitized data via USB port
• Hot Insertion: Supported
• Remote Operation Distance: Up to 150 ft from PC via USB 2.0
System Timing and Control
• Timing Controller: National Instruments DAQ-STC
• Timing Features: Equivalent time sampling, adjustable sampling rates
• Triggering: External digital trigger connections supported
Power Requirements
• +22 V Supply: 115 mA maximum
• -22 V Supply: 135 mA maximum
• Power Source: SCXI chassis
Physical Dimensions
• Size: 7.2 × 6.8 × 1.2 inches
– Key Features
• Software-configurable without DIP switches, jumpers, or potentiometers
• Internal calibration source with external calibration connector
• Four front-panel status LEDs indicating V+ and V– chassis rail status
• Direct USB connection to PC or USB hub
– Compatibility & Integration
The SCXI-1600 operates with NI-DAQmx driver software and integrates with LabVIEW, LabWindows/CVI, and Measurement Studio development environments. Note: National Instruments has designated this module End-of-Life; availability through third-party suppliers may be limited.
