Patent ID: 6275100
Filing Date: 2001-08-14
Classification: G05F

Abstract:
A reference voltage generator that generates a reference voltage at a reference voltage output terminal thereof, the reference voltage generator comprising:first and second transistors of same conductivity type, each having a controlling electrode and a pair of controlled electrodes;first and second nodes;the controlled electrodes of the first transistor being connected between the reference voltage output terminal and the second node;the controlled electrodes of the second transistor being connected between the first node and a second power supply voltage;the controlling electrode of the first transistor being connected to the first node;the controlling electrode of the second transistor being connected to the second node;a first resistive element connected between the first node and a first power supply voltage;a second resistive element connected between the first node and the reference voltage output terminal;a third resistive element connected between the second node and the second power supply voltage; andat least one switch that disconnects the reference voltage generator from at least one of the first and second power supply voltages, in response to a control signal.