Patent ID: 6587000
Filing Date: 2003-07-01
Classification: G05F,H03M

Abstract:
A current mirror circuit comprising:a first constant current source which outputs a constant current to a first node based on a first reference voltage; a first MOS transistor which has a source grounded, a gate connected to a second MOS transistor and a drain connected to said first node; said second MOS transistor which has a source grounded, a gate connected to said first MOS transistor and a drain connected to a second node; a first operational amplifier which has a first input terminal connected to said first node, a second input terminal connected to a third node which is connected to a second reference voltage and an output terminal connected to said gates of said first and second MOS transistors; and a second operational amplifier which has a first input terminal connected to said third node, a second input terminal connected to said second node and an output terminal connected through a feedback circuit to said second node.