A recovery plant for recovery of a gaseous component, such as carbon dioxide, from a process gas, such as the exhaust from a combustion turbine, has an absorber employing a lean solvent in an upper section of the absorber and a semi-lean solvent in a lower section of the absorber. The comparator unit includes an external feedback voltage input end and a reference voltage input end for inputting a feedback voltage and a reference voltage respectively, such that when the feedback voltage equals the reference voltage, the comparator unit transmits a control signal to the digital output unit. The BSS is carried out by a two-step method including an ICA. Circuits are disclosed for a bandgap reference voltage generator useful for providing a bandgap reference voltage in a circuit. The memory device may further include a control circuit connected to the at least one fuse to provide for prelaser testing.