ECL Basic Principle Multiple Choice Questions (MCQ) PDF Download

MCQ : ECL uses an overdriven BJT differential amplifier with single-ended input to

1. slow turn-off behavior
2. slow turn-on behavior
3. fast turn-off behavior
4. fast turn-on behavior

MCQ 1: The differential nature of the circuit makes ECL less susceptible to pick up

1. current
2. voltage
3. input
4. noise

MCQ 2: The current drawn from power supply during switching will

1. increase
2. decrease
3. remain constant
4. zero

MCQ 3: In ECL, output impedance of circuit is always

1. high
2. low
3. infinite
4. zero

MCQ 4: In ECL, the transistors are never in saturation, the input/output voltages have a small swing approximately equals to

1. 0 V
2. 0.8 V
3. 1.2 V
4. 2 V