Question

Using the CMOS long-channel process (1 µm), estimate the AC and DC drain currents in the circuit seen in the figure below. What are $V_{gs1}$ and $V_{gs2}$? What happens to the DC biasing if we replace the capacitor with a short? What happens, with the capacitor in place, to the DC biasing if we short the big resistor (show that the DC biasing isn't affected; however, the amount of AC current supplied by $V_{in}$ goes up). How do the currents in M2 change if we double its width (put two 10/2 transistors in parallel)?

          Using the CMOS long-channel process (1 µm), estimate the AC and DC drain currents in the
circuit seen in the figure below. What are $V_{gs1}$ and $V_{gs2}$? What happens to the DC biasing if
we replace the capacitor with a short? What happens, with the capacitor in place, to the DC
biasing if we short the big resistor (show that the DC biasing isn't affected; however, the
amount of AC current supplied by $V_{in}$ goes up). How do the currents in M2 change if we
double its width (put two 10/2 transistors in parallel)?

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Using the CMOS long-channel process (1 µm), estimate the AC and DC drain currents in the
circuit seen in the figure below. What are Vgs1 and Vgs2? What happens to the DC biasing if
we replace the capacitor with a short? What happens, with the capacitor in place, to the DC
biasing if we short the big resistor (show that the DC biasing isn't affected; however, the
amount of AC current supplied by Vin goes up). How do the currents in M2 change if we
double its width (put two 10/2 transistors in parallel)?

Added by Eduardo B.

University Physics with Modern Physics

Hugh D. Young 14th Edition

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Solved by Expert Vishal Gupta

Step 1

AC and DC drain currents in the circuit: To estimate the AC and DC drain currents, we need to analyze the circuit. However, the figure mentioned in the question is missing, so we cannot provide a specific answer without the circuit diagram. Show more…

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Using the CMOS long-channel process (1 Î¼m), estimate the AC and DC drain currents in the circuit seen in the figure below. What are Vgs1 and Vgs2? What happens to the DC biasing if we replace the capacitor with a short? What happens, with the capacitor in place, to the DC biasing if we short the big resistor (show that the DC biasing isn't affected; however, the amount of AC current supplied by Vin goes up)? How do the currents in M2 change if we double its width (put two 10/2 transistors in parallel)? VDD VDD D+1 Big M1,10/2 M2,10/2 Big Vin, 1 mV at 1 kHz

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