Patent ID: 6329868
Filing Date: 2001-12-11
Classification: G05F

Abstract:
A circuit for compensating for curvature in temperature response of junction voltage of a semiconductor device comprising:a) a first current source of current proportional to absolute temperature through the device (PTAT) less a current complimentary to absolute temperature (CTAT),b) a second current source of PTAT plus a constant, .beta., times CTAT,c) a first current path between two potential levels (V.sub.cc G.sub.nd) including the first current source serially connected with first and second semiconductor junction devices,d) a second current path between the two potential levels including the second current source serially connected with a first three terminal transistor including a control terminal,e) means coupling the voltage across the first and second semiconductor junction devices to the control terminal of the first transistor;f) a second three terminal transistor including a control terminal, andg) means coupling a voltage from the first transistor to the control terminal of the second transistor to control current through the second transistor.