Practice Defining VIL, VIH, VOH, and VOL - 3.4 | Lab Module 2: CMOS Inverter Design and Static Characteristics Analysis | VLSI Design Lab
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Knowledge

3.4 - Defining VIL, VIH, VOH, and VOL

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does VOH stand for and what is its ideal value?

💡 Hint: Think about the maximum output level.

Question 2

Easy

Define VOL in the context of a CMOS inverter.

💡 Hint: Consider the minimum output level in logic high.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the ideal value of VOH in a CMOS inverter?

  • 0V
  • VDD
  • VIL

💡 Hint: Consider what the role of high voltage is in output.

Question 2

VIL is determined at which specific condition on the VTC?

  • dVout/dVin > 1
  • dVout/dVin < -1
  • dVout/dVin = -1

💡 Hint: Think about the slope that indicates transition.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

If the VOH is found to be 1.5V instead of 2V, what would be the potential impacts on the inverter’s noise margins?

💡 Hint: Think about how lower output affects input reliability.

Question 2

Given VIL=0.8V and VOL=0.2V, calculate NML. Discuss what this could mean for circuit robustness.

💡 Hint: Relate NML to overall circuit performance.

Challenge and get performance evaluation