17.1. Analog Electronic Circuits

Try these first

1. 1.

   What is the definition of a MOSFET?

   Hint

   Think about how it controls current.

2. 2.

   What does an increase in gate voltage do to the output voltage?

   Hint

   Consider the relationship between input and output.

3. 3.

   What is transconductance?

   • A measure of voltage
   • A measure of current
   • A measure of performance

   Hint

   Reflect on what the term indicates regarding device functionality.

4. 4.

   True or False: In triode region, MOSFET behaves like a variable resistor.

   • True
   • False

   Hint

   Think about how the device operates in different voltage conditions.

5. 5.

   Given a MOSFET circuit with V_DD = 12V, V_GS = 3V, and R_D = 2kΩ, compute the output voltage when the device is in saturation.

   Hint

   Remember to ensure you are in the right operational region before making calculations.

6. 6.

   Design a circuit using an n-MOSFET to amplify an input signal and determine its gain if you specify resistances.

   Hint

   Consider how variance in input signal would reflect in your gain calculations.