Practice Basic Operation Of Nmos And Pmos Transistors (2.2) - Characteristics and Behavior of CMOS Devices

Practice: Basic Operation of NMOS and PMOS Transistors

Lesson 2.2Characteristics and Behavior of CMOS Devices

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9 questions

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6 questions · about 4 min · pass mark 70%. Hints available.
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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the threshold voltage of a transistor?
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Look for the term that describes the minimum gate voltage.
Question 2.
What type of MOSFET conducts when a positive voltage is applied?
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Remember the type of transistor that operates with positive gate-source voltage.
3Question 3.
Which type of transistor operates with a positive gate-source voltage?
- NMOS
- PMOS
- Both
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Recall which transistor needs a positive voltage to turn on.
4Question 4.
True or False: PMOS transistors turn on when VGS is above the threshold voltage.
- True
- False
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Think about the voltage conditions necessary for PMOS to conduct.
Question 5.
Design a simple CMOS inverter using one NMOS and one PMOS transistor. Explain how the circuit operates when the input is high and low.
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Think about the complementary operation of the NMOS and PMOS circuits.
Question 6.
Calculate the output current for a PMOS transistor under various VSG conditions based on the characteristics provided in the description.
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Keep track of how VSG relates to the Vth described for PMOS.

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