13.2.1. Linear Region of Operation

Try these first

1. 1.

   Define the threshold voltage (Vth) in the context of MOSFET operation.

   Hint

   Think about what is necessary to allow current to pass through a MOSFET.

2. 2.

   What happens when VSG is less than Vth?

   Hint

   Recall the cutoff region.

3. 3.

   What is the condition for a MOSFET to be in saturation?

   • VSG < Vth
   • VDS > VSG - Vth
   • VSG = Vth
   • VDS < Vth

   Hint

   Think about how pinch-off affects the operation.

4. 4.

   True or False: In the linear region, the current changes proportionally with an increase in VDS.

   • True
   • False

   Hint

   Consider the definition of linear behavior.

5. 5.

   A MOSFET with a k value of 2mA/V² is connected with VSG = 4V, Vth = 1V, and VDS = 3V. Calculate the value of IDS.

   Hint

   Determine if VDS < VSG - Vth for region classification.

6. 6.

   Design a circuit using an n-MOSFET and a p-MOSFET to create a complementary logic gate. Explore biasing conditions.

   Hint

   Reflect on the values needed for proper operational regions.