Patent ID: 6667654
Filing Date: 2003-12-23
Classification: G05F,H03F

Abstract:
A current miuor circuit comprising:a preference side capable of generating a reference current, said reference side having a first transistor and a second transistor that are connected together by a resistor; a load side capable of generating a load current that is proportiona to said reference current, said load current side having an output load transistor having a gate coupled to a gate of said first transistor, a drain of said output load transistor coupled to a load circuit, and a source of said output load transistor coupled to a source of said first transistor; and a voltage source applied across a gate of said first transistor and a drain of said second transistor, wherein said voltage source is representative of a supply voltage of said load circuit thereby improving the ability of said first transistor to track the output current of said output load transistor.