4.2.2. Voltage Reference Circuit Fundamentals

Try these first

1. 1.

   Define Thermal Voltage.

   Hint

   Think about the voltage's relationship with temperature.

2. 2.

   What is the purpose of temperature compensation in voltage references?

   Hint

   Remember why the output needs to stay stable.

3. 3.

   What is the formula for thermal voltage?

   • VT = q/kT
   • VT = kT/q
   • VT = kT * q

   Hint

   Remember the variables involved and their relationships.

4. 4.

   Temperature compensation is primarily used to -

   • True
   • False

   Hint

   Think about why we need stable voltage in circuits.

5. 5.

   Design a voltage reference circuit using diodes and explain how you would implement temperature compensation.

   Hint

   Focus on how the differing temperature responses of the diodes could be used to offset one another.

6. 6.

   Evaluate the potential issues with not including temperature compensation in a voltage reference design.

   Hint

   Consider scenarios where voltage readings fluctuate significantly.