Question: Use the Generic 0.13 m process. For the PMOS DCI calibration circuit in Keeth, Figure 10.6 on p. 224, use the Generic 0.13 m process.

Use the Generic 0.13 m process. For the PMOS DCI calibration circuit in Keeth, Figure 10.6 on p. 224, use the Generic 0.13 m process. The smallest transistor is 0.60 m / 0.20 m. Ignore the enable transistor for this problem.

a. What are the sizes of the other 4 binary-sized transistors?

b. What is the channel conductance of each PMOS transistor driven by VOH*, if VG = 0 V and VD = 0.9 V? Use the formula Gchannel = ID / VDS, with the ID formula in the appropriate operating region.

c. If RPU is implemented by a PMOS transistor with VG = 0 V and VD = 0.9 V and has a channel conductance of 0.404 mmho, what is the width?

d. What are the 32 possible values of RCal,UP? Where does 240 fall in this range? How big is the step in resistance above and below the 240 value?

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