Receiver circuit and optical receiver circuit

Abstract

A receiver circuit includes: a constant current circuit to generate second paired current signals according to first paired current signals; a current splitter circuit to output third paired current signals generated from the second paired current signals, from a first output node and a second output node; and a differential TIA circuit to output paired voltage signals from a first output terminal and a second output terminal, according to the third paired current signals input from a third input node and a fourth input node. The differential TIA circuit includes a first feedback resistor element connected between the third input node and the second output terminal, and a second feedback resistor element connected between the fourth input node and the first output terminal. Average voltages of the first and second output nodes and the first and second output terminals are set to be equivalent to each other.