PCI-4472 PXI/CompactPCI device

The NI 4472 is a high-performance, high-accuracy analog input device for the PCI, PXI, or CompactPCI bus. It is part of the National Instruments Dynamic Signal Acquisition/Analysis (DSA) product family and is specifically designed for demanding dynamic signal acquisition applications. The NI 4472 features eight analog input channels. These channels are simultaneously sampled at a maximum rate of 102.4 kS/s with 24-bit resolution and multiple triggering modes, including external digital triggering.

Each input channel has an independent software-switchable 4 mA current source for Integrated Circuit Piezoelectric (ICP®)-type accelerometers and microphone preamplifiers. See Appendix A, Specifications, for details about your NI 4472. The analog input circuitry uses oversampling delta-sigma modulating analog-to-digital converters (ADCs). Delta-sigma converters are inherently linear, provide built-in brick-wall anti-aliasing filters, and have specifications that exceed other conventional technology for this application with regard to total harmonic distortion (THD), signal-to-noise ratio (SNR), and amplitude flatness. These features help you acquire signals with high accuracy and high fidelity without introducing noise or out-of-band aliases. Applications for NI 4472 devices include audio signal processing and analysis, acoustics and speech research, sonar, audio frequency test and measurement, vibration and modal analysis, or any application requiring high-fidelity signal acquisition.