Temperature compensated low voltage reference

Details Temperature compensated low voltage reference Temperature compensated low voltage reference

G - Physics

05

F

323/4

G05F 1/44 (2006.01) G05F 3/30 (2006.01)

Patent

CA 1105995

ABSTRACT OF THE DISCLOSURE A temperature compensated low voltage reference that produces an output voltage less than the silicon band-gap volt- age. The low voltage reference includes at least a first and a second transistor for providing a voltage independent of variations in the collector power supply and at least a third transistor for developing a voltage that is a fractional value of the base-to-emitter voltage drop of a transistor. The at least a third transistor for developing is coupled with the at least a first and a second transistor for providing. The low voltage reference also includes an output transistor for providing an output voltage. The output transistor is controlled by the voltage provided by the at least a first and second transistor for providing so that the output voltage is essen- tially insensitive to temperature variations and is a lower value than the silicon band-gap voltage.

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