Patent ID: 7227416
Filing Date: 2007-06-05
Classification: G05F,H03F

Abstract:
1. A current mirror with a low static current for amplifying the difference between a first input current and a second input current into an output current, comprising: a load, which has a first end coupling to the first input current and a second end with a fixed voltage difference imposed in between; a first transistor, whose drain is coupled to the second end of the load, whose gate is coupled to the first end of the load, and whose source is coupled to the second input current; a second transistor, whose drain is coupled to a second port, whose gate is coupled to the second end of the load, and whose source is coupled to the ground; and a third transistor, whose drain is coupled to a third port and the output current, whose gate is coupled to the second end of the load, and whose source is coupled to the ground.