Patent ID: 7408385

Claim:
A receiver circuit which is connected with a partner transmitter circuit through a signal line and receives a signal based on a current which flows through the signal line, the receiver circuit comprising: a current/voltage conversion circuit which converts the current which flows through the signal line into a voltage; a power supply circuit which adjusts the current which flows through the signal line based on a bias voltage and a voltage of a node connected with the signal line; and a bias voltage generation circuit which outputs the bias voltage, the power supply circuit includes a first current adjustment transistor connected with the node and the current/voltage conversion circuit, and a first differential transistor and a second differential transistor which make up a differential pair and of which drain currents are controlled, a gate of the first differential transistor is connected with the node, and a drain of the first differential transistor is connected with a gate of the first current adjustment transistor, the bias voltage is supplied to a gate of the second differential transistor, and the bias voltage generation circuit generates the bias voltage corresponding to the drain current of the first differential transistor or the second differential transistor.