Enhanced current mirror for multiple supply voltages

A system that facilitates management of reference current, comprising:

• a comparator component that compares a modified supply voltage level to a reference voltage level of a gate of a first transistor component of the comparator component, wherein the modified supply voltage level is based on a supply voltage level of a supply voltage that is provided to an amplifier component, and wherein at least one of a source and a drain of the first transistor component is directly connected with ground;
• and
• a current controller component that manages a resistance of a reference resistor component associated with the supply voltage, based on a result of the comparison of the modified supply voltage level to the reference voltage level, to facilitate managing a reference current level of the reference current associated with the amplifier component.

A method that facilitates controlling bias current, comprising:

• comparing a reduced supply voltage level to a reference voltage level of a gate of a first transistor component of a comparator component, wherein the reduced supply voltage level is derived from a supply voltage level of a supply voltage that is supplied to an amplifier component, wherein at least one of a source and a drain of the first transistor component is directly connected to ground, wherein a reference resistor component comprises a first reference resistor sub-component and a second reference resistor sub-component, and wherein the first reference resistor sub-component is associated with the supply voltage, the second reference resistor sub-component, and a second transistor component of the amplifier component;
• and
• controlling switching of operational states of the first transistor component associated with the second reference resistor sub-component, based on a result of the comparing of the reduced supply voltage level to the reference voltage level, to facilitate controlling a bias current level of the bias current associated with the amplifier component.