A bias generator comprises a first transistor and a second transistor having a control port connected to a control port of the first transistor and to an input port of the second transistor, where a second current through the second transistor is greater than a first current through the first transistor. The current through the bias generator is minimized by providing the different currents through the transistors having a similar size.

 
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> Low power bandgap voltage reference circuit having multiple reference voltages with high power supply rejection ratio

> Method of voltage measurement and apparatus for same

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