Vlsi Design & Technology Test Questions Start Creating PDF

MCQ: Basically, an observability of an internal circuit node is a degree to which one can observe that node at the _______ of an integrated circuit.

1. Inputs
2. Outputs
3. Both a and b
4. None of the above

MCQ: High observability indicates that ________number of cycles are required to measure the output node value.

1. More
2. Equal
3. Less
4. None of the above

MCQ: Due to the limitations of the testers, the functional test is usually performed at speed _______the target speed.

1. Lower than
2. Equal to
3. Greater than
4. None of the above

MCQ: Which among the following is/are responsible for the occurrence of 'Delay Faults'?

1. Variations in circuit delays & clock skews
2. Improper estimation of on-chip interconnect & routing delays
3. Aging effects & opens in metal lines connecting parallel transistors
4. All of the above

MCQ: Which among the following serves as an input stage to most of the op-amps due to its compatibility with IC technology?

1. Differential amplifier
2. Cascode amplifier
3. Operational transconductance amplifiers (OTAs)
4. Voltage operational amplifier

MCQ: PSSR can be defined as the product of the ratio of change in supply voltage to change in output voltage of op-amp caused by the change in power supply & _______ of op-amp.

1. Open-loop gain
2. Closed-loop gain
3. Both a and b
4. None of the above

MCQ: According to the principle of current mirror, if gate-source potentials of two identical MOS transistors are equal, then the channel currents should be _______

1. Equal
2. Different
3. Both a and b
4. None of the above

MCQ: In two-stage op-amp, what is the purpose of compensation circuitry?

1. To provide high gain
2. To lower output resistance & maintain large signal swing
3. To establish proper operating point for each transistor in its quiescent state
4. To achieve stable closed-loop performance

MCQ: In accordance to the scaling technology, the total delay of the logic circuit depends on ______

1. The capacitor to be charged
2. The voltage through which capacitance must be charged
3. Available current
4. All of the above

MCQ: In CMOS circuits, which type of power dissipation occurs due to switching of transient current and charging & discharging of load capacitance?

1. Static dissipation
2. Dynamic dissipation
3. Both a and b
4. None of the above