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vlsi design quiz 1

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

CMOS inverter has ______ regions of operation

a)

Three

b)

Four

c)

Two

d)

Five

2.

If both the transistors are in saturation, then they act as

a)

Current Source

b)

Voltage Source

c)

Divider

d)

Buffer

3.

------------------- can pass a logic 1 perfectly, but cannot pass a logic 0 perfectly

a)

nmos

b)

Transmission gate

c)

pmos

d)

keepers

4.
PMOS transistors always passes ____________ (CO1)(B3)
a)
Strong 1
b)
moderate 0
c)
strong 0
d)
weak 1
5.
NMOS transistors always passes ____________ (CO1)(B3)
a)
Strong 1
b)
moderate 0
c)
strong 0
d)
weak 0
6.
In CMOS inverter, when Vin=VDD/2 or Vin-Vinv , then both p & n transistors will be in ___________(CO1)(B4)
a)
cutoff region
b)
linear region
c)
saturation region
d)
none of these
7.
The drain current equation of a MOS transistor in linear region is ____________ (CO1)(B4)
a)
Ids=0
b)
Ids=µ.Cox.W/L (Vgs-Vt-Vds/2)Vds
c)
Ids=µ.Cox.W/L (Vgs-Vt)2
d)
none of these
8.

____ technology is preferred than________ technology

a)

NMOS,PMOS

b)

PMOS,NMOS

c)

NMOS,CMOS

d)

PMOS,CMOS

9.

What is the voltage transfer characteristic of a CMOS inverter?

a)

A plot of Vout versus Vin

b)

A graph showing the power consumption of the CMOS inverter

c)

A table displaying the input and output voltages of the CMOS inverter

d)

A diagram illustrating the physical structure of the CMOS inverter

10.

What is the basic building block of digital circuits in CMOS technology?

a)

resistor

b)

diode

c)

transistor

d)

capacitor

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