National Instruments NI-9208

The National Instruments NI-9208 is a C Series Current Input Module designed for rigorous data acquisition applications in industrial environments. Featuring 16 single-ended current input channels with a measurement range of ±20 mA, this module provides exceptional performance with a maximum sample rate of 500 samples per second and a resolution of 24 bits. The NI-9208 is available with two connector options—D-sub (part number 780968-01) and spring terminal (part number 785041-01)—providing versatile connectivity solutions tailored to a variety of system requirements. It supports high-channel density, optimizing module count and system costs while accommodating additional measurements.

Built to withstand challenging conditions, the NI-9208 operates effectively in extreme temperatures ranging from -40 to 70 degrees Celsius and can endure up to 5 g of vibration. With Delta-Sigma ADC technology, it offers low input noise levels of 50 nA RMS in high-resolution mode and 200 nA RMS in high-speed mode, ensuring high signal fidelity. Users can select between high-resolution mode (52 ms per channel) and high-speed mode (2 ms per channel), and specific channels include overvoltage protection up to ±30 V. The power efficiency of the module is also noteworthy, consuming a maximum of 282 mW in active mode and just 25 μW in sleep mode.

Weighing 144 g (5.1 oz) with the D-sub connector and 161 g (5.7 oz) with the spring terminal, the NI-9208 is lightweight and easy to implement within existing systems. It features IP40 ingress protection and a Pollution Degree 2 rating, ensuring its reliability in harsh industrial settings. With hot-swappable capabilities, the NI-9208 is compatible with National Instruments' broad range of C Series modules and integrates seamlessly across CompactRIO and CompactDAQ platforms, enabling enhanced measurement, control, and communication for industrial automation applications.