ETC EngineeringMCQs
Home › Digital Electronics › A CMOS gate has a specified noise margin high NMH = VOH(min) − VIH(min). If VOH(min)=4.4 V and VIH(min)=3.2 V, NMH equals?
MCQ Practice Question
Digital ElectronicsLogic Families

A CMOS gate has a specified noise margin high NMH = VOH(min) − VIH(min). If VOH(min)=4.4 V and VIH(min)=3.2 V, NMH equals?

  • A0.8 V
  • B1.2 V
  • C3.2 V
  • D7.6 V
Report an error
Correct Answer: B. 1.2 V
Explanation: NMH = 4.4 − 3.2 = 1.2 V. It represents the allowable HIGH-level noise before the receiving input may no longer be guaranteed HIGH.
Reference: Standard digital electronics: noise margin
Continue practicing: Digital Electronics MCQs or browse all MCQs.