Current output circuit

A current output circuit comprising:

• an input circuit;
• an output circuit connected between a power supply electric potential and the input circuit and configured to output a third current;
• and
• a control circuit connected to the output circuit, wherein
• the output circuit includes transistors of a first group,
• the input circuit includes transistors of a second group,
• the transistors of the first group and the transistors of the second group respectively include a plurality of transistors arranged in a current mirror circuit,
• the control circuit includes a control transistor connected to the transistors of the first group and a switch circuit connected between the control transistor and a reference electric potential and performing switching in response to a control signal,
• a gate of the control transistor is connected to a source or a drain of any of the plurality of transistors included in the transistors of the first group, and
• one of a source or a drain of the control transistor is connected to a gate of any of the plurality of transistors included in the transistors of the first group, and the other of the source or the drain of the control transistor is connected to the switch circuit.

A current output circuit, comprising:

• an input circuit configured to output a second current in response to a first current when the first current is inputted to the input circuit;
• an output circuit configured to output a third current in response to a current;
• and
• a control circuit configured to cause the input circuit to output the second current when a control signal is inputted before the first current is inputted to the input circuit.