Current mirror circuit, amplifier, and electronic device

The invention relates to a current mirror circuit, an amplifier and electronic equipment, the current mirror circuit comprises a common-source unit, a common-gate unit, a first load, a second load and a feedback circuit, and the feedback circuit is used for providing bias for the common-gate unit. The common-source unit comprises a first transistor and a second transistor, and the common-gate unit comprises a third transistor and a fourth transistor; the grid electrode of the first transistor, the grid electrode of the second transistor and the drain electrode of the third transistor are respectively connected with input current; the drain electrode of the first transistor is connected with the source electrode of the third transistor. The source electrode of the first transistor is connected with a first load. Grid electrodes of the third transistor and the fourth transistor are respectively connected with the feedback circuit; the source electrode of the second transistor is connected with a second load, th