$3.(4$ Points$)$ Use the Successive Approximation method and the information provided on the ADC to answer the following questions:

a$.(2$ points$)$ Using an ADC with $4$ bits of precision, with a reference voltage of $2$ volts, what is the binary value and digital voltage for an analog input voltage of $1\mathrm{.}3$ volts?

b$.(2$ points$)$ Using an ADC with $8$ bits of precision, with a reference voltage of $2$ volts, what is the binary value and digital voltage for an analog input voltage of $1\mathrm{.}3$ volts?