Analog-to-digital converter
A system includes an analog-to-digital converter receiving a plurality of input signals. One particular input signal has a particular analog value and the analog-to-digital converter uses a fixed reference to convert the particular analog value to a particular digital value. The analog-to-digital converter uses the particular analog value as a reference for converting the analog values of the remaining input signals.
1. A system, comprising:
an analog-to-digital converter receiving a plurality of analog input signals, wherein the plurality of analog input signals contain different bandwidth portions of an audio signal,
the analog-to-digital converter using a fixed reference to convert a first analog input signal from the plurality of analog input signals to a first digital value; and
the analog-to-digital converter using the first digital value for a reference for converting the plurality of analog input signals, except the first analog input signal, to digital values.
2. The system of claim 1 where the first digital value is an output of the system.
3. The system of claim 1 , wherein the first analog input signal has a maximum value when compared to the plurality of analog input signals during a measurement time interval.
4. The system of claim 1 , where the analog-to-digital converter is a successive-approximation analog-to-digital converter.
5. The system of claim 1 , where the analog-to-digital converter is a floating-point analog-to-digital converter.
6. The system of claim 5 , where the analog-to-digital converter is a floating-point successive-approximation analog-to-digital converter.