A/D ConversionAnalog-to-digital (A/D) converters are used to transform biological signals fromcontinuous analog waveforms to digital sequences. An A/D converter is a computercontrolled voltmeter, which measures an input analog signal and gives a numericrepresentation of the signal as its output. Figure 10.5a shows an analog signal andFigure 10.5b shows a digital version of the same signal. The analog waveform,originally detected by the sensor and subsequently amplified and filtered, is a continu
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