A five-bit flash \(\mathrm{ADC}\) in Fi gure \(\mathrm{P} 4-71\) uses a reference voltage of \(5 \mathrm{~V}\). Find the output code for the analog inputs \(v_{\mathrm{S}}=\) \(3.5 \mathrm{~V}, 2.3 \mathrm{~V}\), and \(4.9 \mathrm{~V}\). If the reference voltage is changed to \(8 \mathrm{~V}\), which of these codes would change?

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VREF R VNI R ww VN2 R VN3 ww R R VN4 ww R VN5 ww VS obi -ob -0b3 oba obs