NI SCXI-1100 multiplexer amplifier
Product Manual：
I. Overview
SCXI-1100 is a multi-channel analog input module in the National Instruments (NI) SCXI signal conditioning system, belonging to the “multiplexer+programmable gain amplifier (PGIA)” structure. It is mainly used to collect and condition multiple analog signals before inputting them into the DAQ data acquisition system. This module has been discontinued, but it is still widely used in old industrial testing and experimental systems.
2、 Reuse and signal amplification function
Adopting a 32 channel differential input channel structure
Built in programmable gain amplifier (PGIA), supporting multiple gain adjustments
Supports millivolt, volt level, and current signal input
Supports ± 10V input range
Built in low-pass filter (typically around 4Hz) for noise suppression
Support automatic channel scanning and switching
Can enhance the channel expansion capability of DAQ system
Suitable for weak signal acquisition and multi-point measurement systems
3、 Main features of the module
32 channel high-density analog input design
Reuse architecture reduces hardware acquisition channel requirements
High input impedance reduces the impact of signal load
Support automatic matching of multiple ranges
Strong anti-interference ability
Built in signal conditioning (amplification+filtering)
Can be used in conjunction with the SCXI chassis system
Support sensor signals such as temperature, pressure, strain, etc
Modular structure for easy expansion
Suitable for industrial testing and scientific measurement systems
4、 Conclusion
SCXI-1100 is essentially a “multi-channel signal multiplexing+amplification and conditioning module” used to centrally process multiple weak analog signals and send them to the data acquisition system, improving channel utilization and measurement accuracy.
Product detailed pictures：
SCXI-1100
product video
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