Practice Subthreshold Operation - 2.5.1 | 2. Characteristics and Behavior of CMOS Devices | CMOS Integrated Circuits
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Academics
Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Professional Courses
Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skillsβ€”perfect for learners of all ages.

games

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is subthreshold conduction?

πŸ’‘ Hint: Think about the conditions for current flow in transistors.

Question 2

Easy

Why is subthreshold operation useful?

πŸ’‘ Hint: Consider applications that require battery efficiency.

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 happens when the gate-source voltage is below the threshold voltage?

  • No current flows
  • A small current flows
  • The transistor is damaged

πŸ’‘ Hint: Think about what subthreshold conduction means.

Question 2

True or False: Subthreshold operation can lead to significant power savings in low-power devices.

  • True
  • False

πŸ’‘ Hint: Consider the applications of subthreshold operation.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A subthreshold CMOS device operates at a threshold voltage of 0.4 V and the thermal voltage is 26 mV. If the gate-source voltage is set to 0.3 V and I0 is known to be 2 Β΅A, calculate the subthreshold current ID.

πŸ’‘ Hint: Ensure you’re applying the correct voltage values in the exponential equation.

Question 2

Evaluate the performance implications of using subthreshold conduction in a wearable device expected to operate for weeks on a small battery.

πŸ’‘ Hint: Think about the balance between performance and power efficiency.

Challenge and get performance evaluation