Question:
Which of the following ICs (Integrated Circuits) is the fastest?
Which of the following ICs (Integrated Circuits) is the fastest?
Show Hint
ECL is very fast because it avoids transistor saturation, reducing switching delay.
Updated On: Jun 6, 2026
- ECL
- TTL
- EPL
- MOS
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The Correct Option is A
Solution and Explanation
Concept:
Different logic families have different operating speeds. The speed depends on switching time and propagation delay.
Step 1: Understand ECL.
ECL stands for Emitter Coupled Logic. It is one of the fastest logic families because transistors do not go into deep saturation.
Step 2: Compare with TTL and MOS.
TTL is slower than ECL. MOS circuits are useful for high-density integration but are generally slower than ECL.
Step 3: Final conclusion.
Among the given options, ECL has the highest speed. \[ \therefore \text{Correct Answer is (A)} \]
Different logic families have different operating speeds. The speed depends on switching time and propagation delay.
Step 1: Understand ECL.
ECL stands for Emitter Coupled Logic. It is one of the fastest logic families because transistors do not go into deep saturation.
Step 2: Compare with TTL and MOS.
TTL is slower than ECL. MOS circuits are useful for high-density integration but are generally slower than ECL.
Step 3: Final conclusion.
Among the given options, ECL has the highest speed. \[ \therefore \text{Correct Answer is (A)} \]
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