I only need problem #8

1. Determine the step size for a 12-bit A/D converter having a range of 10 V. Also, convert an analog sample of 4.3 V into the 12-bit digits. 2. For an eight-bit D/A converter having a range of 5 V, convert 10110101 into an analog sample value. 3. How many quantized levels are possible in a 16-bit A/D converter? What is the normal- ized value of the quantized step size in mV? Show the block diagram of the successive approximation 16-bit A/D converter. 4. Draw the block diagram of a successive approximation six-bit A/D converter having a range of O V to 6 V, and determine the approximation steps for an analog sample of 2.9 V. 5. An analog signal consists of a 1 kHz and a 3.2 kHz spectral. Determine the Nyquist (minimum sampling) rate of sampling and the approximate number of samples for the duration of two minutes of the signal. Also, provide an example of the aliasing problem for the signal. 6. For a six-bit D/A converter, draw an R/2R ladder network and determine the output voltage for 010000 input using the circuit analysis method. 7. Simplify the logic circuit shown in Figure 5-20. 8. A 6-bit successive-approximation A-D converter has a range of (0,20). (a) What is the step size of this converter? (b) State in binary form the final digital value that this A-D produces for an input voltage of 9.5. Show all your calculations." (c) Given the clock period is lus, what is the conversion time taken for the input voltage in (b) for this A-D converter