Patent ID: 6150871
Filing Date: 2000-11-21
Classification: G05F

Abstract:
A voltage reference circuit comprising:a current mirror electrically coupled to a first supply voltage, said current mirror having a first current terminal and a second current terminal;a first transistor having a first current handling terminal, a second current handling terminal coupled to said first current terminal of said current mirror, and a control terminal;a second transistor having a first current handling terminal coupled to a second supply voltage, a second current handling terminal, and a control terminal coupled to said second current handling terminal, said control terminal also coupled to said control terminal of said first transistor;a first resistor coupled between said first current handling terminal of said first transistor and said second supply voltage, said first resistor having a variable resistance, said resistance being modulated by a first bias voltage related to said first supply voltage; anda second resistor coupled between said second current terminal of said current mirror and said second current handling terminal of said second transistor.