Suppose that we are working with a successive approximation-based 4 bit ADC. The input voltage range extends from V min =1 V (="0000") to Vmax =4.75 V (="1111"). Which steps are used to convert voltages of 2.25 V, 3.75 V, and 1.8 V? Draw a diagram similar to Fig.3.12 which depicts the successive approximation to these voltages!

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1100 1011 h(t) 1000 1010 V Fig. 3.12 Successive approximation