Patent ID: 6452437
Filing Date: 2002-09-17
Classification: G11C

Abstract:
A voltage generator comprising:a first terminal acting as an output terminal; a constant current source connected to said first terminal, for supplying or discharging a constant current which is substantially independent of a temperature change to or from said first terminal; a temperature-dependent current source connected to said first terminal, for supplying or discharging a temperature-dependent current which changes as temperature varies to or from said first terminal; a first current/voltage converter connected to said first terminal; a constant current generating circuit connected to said first terminal and including a second current/voltage converter connected between second and third terminals, and a first control circuit for controlling a voltage between the second and third terminals to a constant voltage which is substantially independent of a temperature change; and a temperature-dependent current generating circuit connected to said first terminal and including a first diode element connected between fourth and fifth terminals, a third current/voltage converter connected between sixth and seventh terminals, a second diode element connected between the fifth and seventh terminals, and a second control circuit for controlling potentials of the fourth and sixth terminals to the same potential.