Wired communication receiver with DC level shift

A receiver for wired communication, the receiver comprising:

• a direct current (DC) level shift circuit configured to receive a first signal and generate a second signal,
• wherein the DC level shift circuit comprises a capacitor, and the DC level shift circuit is further configured to transmit a first common-mode voltage in a first voltage domain to a first terminal of the capacitor and transmit a second common-mode voltage in a second voltage domain to a second terminal of the capacitor before the first signal is received, and when the DC level shift circuit receives the first signal, the DC level shift circuit stops transmitting the first common-mode voltage and the second common-mode voltage to the capacitor;
• and
• an analog-to-digital converter (ADC) circuit configured to generate a digital signal according to the second signal, wherein the ADC circuit comprises:
• a capacitor array circuit configured to sample the first signal according to a first control signal, wherein the DC level shift circuit transmits the first signal sampled by the capacitor array circuit to the first terminal of the capacitor according to a second control signal, in order to generate the second signal.