6.2.1. Basic CMOS Logic Gate Structure

Try these first

1. 1.

   What are the two types of transistors used in CMOS gates?

   Hint

   Think about the complementary nature.

2. 2.

   What does NMOS conduct?

   Hint

   Check the state of the input for this type.

3. 3.

   What type of transistor conducts when the input is low?

   • NMOS
   • PMOS
   • Both

   Hint

   Think about how each transistor responds to input conditions.

4. 4.

   The output voltage of a CMOS gate is controlled by which factor?

   • True
   • False

   Hint

   Refer to how NMOS and PMOS operate based on inputs.

5. 5.

   If a CMOS circuit is designed with equal sizes of NMOS and PMOS transistors, but the NMOS is used at a higher frequency, describe how the performance might be impacted.

   Hint

   Consider speed versus capability.

6. 6.

   Design a scenario where a CMOS NOT gate functions improperly under varying input conditions. What could be influencing this?

   Hint

   Reflect on the thresholds for both transistors.