54.2.3. Calculating Output DC Voltage

Try these first

1. 1.

   What is the role of output swing in an amplifier?

   Hint

   Think about the limitations of the power supply.

2. 2.

   What does voltage gain indicate?

   Hint

   It's a ratio of output to input voltage.

3. 3.

   What is the minimum output swing possible with a supply voltage of 12 V?

   • ±12 V
   • ±6 V
   • ±4 V

   Hint

   Consider how much swing would be available with zero limitations.

4. 4.

   True or False: The output DC voltage does not affect the amplifier's ability to produce an AC signal.

   • True
   • False

   Hint

   Do you think a signal can oscillate around zero effectively?

5. 5.

   Design a common gate amplifier that can maintain a ±5 V output swing while providing a voltage gain of 10. Outline the challenges in maintaining these parameters.

   Hint

   Consider how changing one component affects the entire system.

6. 6.

   If the output swing is capped at ±4 V for a design, explain the implications for the overall system performance if the supply voltage is decreased to 10 V.

   Hint

   Reflect on what happens when supply voltage decreases.