What is the ENOB (Effective Number Of Bits) Resolution for NI High Speed Digitizers? Hardware: Modular Instruments>>High-Speed Digitizers (Scopes)
Problem: The resolution for National Instruments High Speed Digitizers is listed in the specifications documents for each device. However, due to noise and non-linearity of the Analog to Digital Converter (ADC), there is another specification called Effective Number of Bits (ENOB) of resolution which describes the actual resolution of the board. How can I calculate the ENOB of resolution for NI High Speed Digitizers (Scopes)? Solution: Effective Number Of Bits (ENOB) is another way of specifying the Signal-to-Noise and Distortion ratio (SINAD). The ENOB can be calculated using this ENOB Formula. The SINAD specification for NI High-Speed Digitizers can be found in the each device's specification document. The specifications for all NI High-Speed Digitizers are included in the download for the NI High-Speed Digitizers Help or can be downloaded from the Product Manuals section of ni.com. For example, the following SINAD specifications for the NI PXI/PCI-5124 can be found in the NI PXI-PCI-5124 Specifications.  Related Links: Product Manuals Product Manuals: ENOB Formula Product Manuals: NI High-Speed Digitizers Help Product Manuals: NI PXI-PCI-5124 Specifications Attachments:
Report Date: 05/01/2007 Last Updated: 05/05/2008 Document ID: 490F1IIH |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
