Application Note

Understanding Oscilloscope ENOB Values

Rohde - ENOB

Selecting the right oscilloscope for your specific application can be a complex task, especially when considering factors like Effective Number of Bits (ENOB). ENOB is a critical metric that quantifies the quality of analog-to-digital conversion, with higher values indicating more accurate voltage level recordings.

This application note examines the intricacies of understanding and interpreting ENOB values, particularly those measured and published by oscilloscope manufacturers. By focusing on measured results rather than the mathematical computations behind ENOB, this document aims to clarify the factors affecting ENOB values and how they impact the overall performance of oscilloscopes. Whether you're dealing with high-frequency signals or varying scope settings, this guide will help you navigate the complexities of ENOB to make informed decisions for your next oscilloscope purchase.

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