Patent ID: 6531911
Filing Date: 2003-03-11
Classification: G01K,G05F,H01L

Abstract:
A temperature sensor circuit for an integrated circuit chip, said circuit comprising:means for generating a reference parameter, comprising: a first and a second diode, where said second diode is connected in series with a first resistor; a first amplifier having a positive input connected to said first resistor and a negative input connected to said first diode, said first amplifier having an output outputting a current output, said output being connected to at least a first set of transistors; and a second amplifier having a negative input connected to said first diode and a positive input connected to a second resistor, said second amplifier having an output outputting a current output, said output being connected to at least a second set of transistors; and means for sensing the on-chip temperature of said integrated circuit chip by utilizing at least said reference parameter, wherein said temperature sensor circuit is capable of operating when a supply voltage is less than or equal 1.0 volt.