Analog-to-digital converter with dynamic full-scale range

A receiver, comprising:

• an analog front-end (AFE) configured to down-convert a radio frequency (RF) signal to generate a first analog signal;
• a first circuit configured to generate a second analog signal;
• a multiplexer configured to supply an analog signal as one of the first analog signal or the second analog signal;
• a comparator configured to compare the analog signal and a reference signal;
• an analog-to-digital converter (ADC) having an input configured to receive the analog signal and an output configured to supply a digital signal;
• a second circuit configured to supply the analog signal to the input of the ADC, the second circuit configured to apply, under control by output of the comparator, a first operation to the analog signal;
• and
• a third circuit configured to receive the digital signal from the output of the ADC, the third circuit configured to apply, under control of the output of the comparator, a second operation to the digital signal.

A method of analog-to-digital conversion in a receiver, comprising:

• comparing, by a comparator, an analog signal and a reference signal;
• converting, by an analog-to-digital converter (ADC), the analog signal to a digital signal;
• applying, by a first circuit that supplies the analog signal to the ADC, a first operation to the analog signal under control of an output of the comparator;
• and
• applying, by a second circuit that receives the digital signal from the ADC, a second operation to the digital signal under control of the output of the comparator.