(Solved): 10. Fig. 10 shows a 3-bit flash ADC and its truth table of encoder. If VDD=12V,Vi=8V, p ...

10. Fig. 10 shows a 3-bit flash $ADC$ and its truth table of encoder. If $V_{DD}=12V,V_i=8\mathrm{V}$, please (a) find $b_1{b}_2{b}_3$. (b) calculate the number of comparators needed for a 6-bit flash ADC. (c) explain the benefits and the drawbacks of the flash $\mathrm{ADC}$ compared with a 3-bit charge-redistribution ADC. rig. 10