Consider the reduced-resistance-ratio approach shown in Fig. 16.8, where a single series resistor is applied to an -bit converter, and where is an even number. What is the improvement in the...

Consider the reduced-resistance-ratio approach shown in Fig. 16.8, where a single series resistor is applied to an -bit converter, and where is an even number. What is the improvement in the resistance ratio compared to using all binary-scaled resistances?