Signal to Noise Ratio (SNR) of DSA DevicesHardware: Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PCI-4452, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PCI-4551, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PCI-4474, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>NI 4472 for IEEE 1394, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PCI-4472, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PXI-4472, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PCI-4451, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PXI-4462, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PCI-4454, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PXI-4461, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PXI-4472B, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PCI-4471, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PXI-4471, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PXI-4474, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PCI-4461, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PCI-4462
Problem: What is the Signal to Noise Ratio (SNR) of my DSA Device Inputs? Solution: The Signal to Noise Ratio(SNR) is not explicitly specified in the 447x and 446x specifications. However, Total Harmonic Distortion(THD) and Total Harmonic Distortion + Noise(THD+N) are specified. The relationship of SNR, THD, and THD+N is such that if any two of these are known, the third can be calculated. See the Analog Devices link below for an online calculator for computing any of these values. NOTE: THD+N and SINAD are the same. Replace the SINAD field with the THD+N value from the correspoding specifications. Related Links: Analog Devices THD/ SNR/ SINAD Calculator Product Manuals: NI 446X Specifications Product Manuals: NI 447X Specifications Attachments:
Report Date: 07/14/2006 Last Updated: 05/13/2008 Document ID: 3ZD9QUNY |
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