Patent ID: 6563371
Filing Date: 2003-05-13
Classification: G05F

Abstract:
A method comprising:forming a first current having a first positive temperature coefficient, wherein forming said first current comprises: forming a first voltage that has a second negative temperature coefficient; forming a second voltage that has a third negative temperature coefficient that is more negative than said second negative temperature coefficient; applying said first and second voltages on respective opposite sides of a second resistive element to form a fourth current through said resistive element that has a second positive temperature coefficient; and mirroring said fourth current to form said first current; forming a second current having a first negative temperature coefficient, wherein forming said second current comprises: applying said first voltage to a third resistive element to form a fifth current through said resistive element; and mirroring said fifth current to form said second current; forming a third current being a combination of the first and second currents; and directing said third current to flow through a first resistive element to generate a reference voltage.