An RF receiver comprising a radio-frequency (RF) down-converter for
receiving and down-converting an input RF signal to a lower frequency
analog signal (e.g., an IF signal or baseband signal) and analog
processing circuitry for receiving the lower frequency analog signal from
the RF down-converter and outputting a processed analog signal. The
processed analog signal includes a DC-offset signal introduced by the RF
down-converter and the analog processing circuitry. The RF receiver also
comprises an ADC circuit for converting the processed analog signal to a
sequence of digital samples and a DC-offset correction circuit for
detecting the DC-offset signal in a digital output signal of the RF
receiver. The DC-offset correction circuit adds a DC-offset correction
signal to the lower frequency analog signal. Adding the DC-offset
correction signal to the lower frequency analog signal reduces the
DC-offset signal in the processed analog signal at the analog processing
circuitry output.