Input circuit and semiconductor device

An input circuit connected to an output circuit that outputs an output value based on a first voltage and a second voltage, to which the first voltage and the second voltage are applied, the input circuit comprising:

• a first differential transistor section including a plurality of first transistors connected in parallel with each other;
• a second differential transistor section including a plurality of second transistors connected in parallel with each other;
• and
• a selectable cutoff section capable of selecting a state in which a current is cut off,
• wherein the output circuit includes a first current path section and a second current path section arranged in parallel with each other between ground and a power supply voltage wiring to which a power supply voltage is applied,
• the first differential transistor section and the second differential transistor section are arranged in parallel with each other between the ground and the power supply voltage wiring,
• the first voltage is applied to a drive terminal of the plurality of first transistors,
• the second voltage is applied to a drive terminal of the plurality of second transistors,
• a first terminal of the plurality of first transistors is connected to the first current path section,
• a first terminal of the plurality of second transistors is connected to the second current path section,
• a second terminal of the plurality of first transistors and a second terminal of the plurality of second transistors are connected to each other,
• the selectable cutoff section is connected in series to one of the plurality of first transistors or one of the plurality of second transistors, and
• the selectable cutoff section is a fuse.

A semiconductor device, comprising:

• an output circuit that outputs an output value based on a first voltage and a second voltage;
• and
• an input circuit to which the first voltage and the second voltage are applied being connected to the output circuit,
• wherein the input circuit includes
• a first differential transistor section having a plurality of first transistors connected in parallel with each other,
• a second differential transistor section having a plurality of second transistors connected in parallel with each other, and
• a selectable cutoff section capable of selecting a state in which a current is cut off,
• the output circuit has a first current path section and a second current path section arranged in parallel with each other between ground and a power supply voltage wiring to which a power supply voltage is applied,
• the first differential transistor section and the second differential transistor section are arranged in parallel with each other between the power supply voltage wiring and the ground,
• the first voltage is applied to each of drive terminals of the plurality of first transistors,
• the second voltage is applied to each of drive terminals of the plurality of second transistors,
• each of first terminals of the plurality of first transistors is connected to the first current path section,
• each of first terminals of the plurality of second transistors is connected to the second current path section,
• each of second terminals of the plurality of first transistors and each of second terminals of the plurality of second transistors are connected to each other,
• the selectable cutoff section is connected in series to one of the plurality of first transistors or one of the plurality of second transistors, and
• the output circuit includes:
• a first amplifier circuit section having the first current path section and the second current path section, and
• a second amplifier circuit section connected to the first amplifier circuit section and outputting the output value.