method and system for developing low noise bandgap references . a stacked δv be generator is disclosed for generating δv be . the stacked δv be generator includes an error amplifier configured to generate an output based on an error signal provided by a first stack of the δv be generator . the first stack of the δv be is coupled to a first sub - circuit and the error amplifier to form a closed loop . the first sub - circuit is coupled to a power supply and ground and configured to provide a source current between the power supply and the ground . the stacked δv be generator also includes a second sub - circuit coupled to the output of the error amplifier , the first and second stacks , and the ground , as well as a second stack of the δv be generator , which is coupled to the first stack and the second sub - circuit . the δv be is measured at outputs of the first and second stacks and equals the sum of individual δv be s of the first and second stacks .