Explanation: Dynamic-range conversion is not a method of analog-to-digital (ADC) conversion. Dynamic range is a *specification* or *characteristic* of a signal, a system, or an ADC itself, indicating the ratio between the strongest and weakest signals it can process or resolve. It is not a conversion process. Conversely, delta-sigma conversion, switched-capacitor conversion (often used in successive approximation register ADCs), and dual-slope integration are all distinct, recognized techniques for converting a continuous analog voltage into a discrete digital value. These ADC methods are fundamental in modern radio systems, enabling technologies like Software Defined Radios (SDRs) by digitizing RF signals for digital processing.