Differential amplifier, receiver, and circuit

A receiver, comprising:

• a differential amplifier including a differential amplification circuit,
• wherein the differential amplifier is configured to amplify an input signal;
• and
• an output circuit configured to:
• amplify a differential output from the differential amplification circuit,
• output the amplified differential output, wherein
• the differential amplification circuit includes a first conductive type first differential pair configured to supply output currents according to a positive phase input signal and a reverse phase input signal to the output circuit, a second conductive type second differential pair configured to supply output currents according to a positive phase input signal and a reverse phase input signal to the output circuit, a detector configured to detect an operation state of the first conductive type first differential pair, and an alternative current supplying unit configured to supply an alternative current for the output current of the second conductive type second differential pair which has been turned off to the output circuit.

A circuit, comprising:

• a differential amplification circuit;
• and
• an output circuit configured to amplify a differential output from the differential amplification circuit and output the amplified differential output, wherein
• the differential amplification circuit includes a first conductive type first differential pair configured to supply output currents according to a positive phase input signal and a reverse phase input signal to the output circuit, a second conductive type second differential pair configured to supply output currents according to a positive phase input signal and a reverse phase input signal to the output circuit, a detector configured to detect an operation state of the first conductive type first differential pair, and an alternative current supplying unit configured to supply an alternative current for the output current of the second conductive type second differential pair which has been turned off to the output circuit.