Integrated Circuit Technologies MCQs

Question 1

Which is not a MOSFET terminal?

Accepted Answer

Base

Answer

Gate

Answer

Drain

Answer

Source

Question 2

For a CMOS gate, which is the best speed-power product?

Accepted Answer

1.4 pJ

Answer

1.6 pJ

Answer

2.4 pJ

Answer

3.3 pJ

Question 3

Which transistor element is used in CMOS logic?

Accepted Answer

MOSFET

Answer

FET

Answer

Bipolar

Answer

Unijunction

Question 4

In a TTL circuit, if an excessive number of load gate inputs are connected, ________.

Accepted Answer

VOH drops below VOH(min)

Answer

VOH(min) drops below VOH

Answer

VOH exceeds VOH(min)

Answer

VOH and VOH(min) are unaffected

Question 5

The greater the propagation delay, the ________.

Accepted Answer

lower the maximum frequency

Answer

higher the maximum frequency

Answer

maximum frequency is unaffected

Answer

minimum frequency is unaffected

Question 6

An open-drain gate is the CMOS counterpart of ________.

Accepted Answer

an open-collector TTL gate

Answer

a tristate TTL gate

Answer

a bipolar junction transistor

Answer

an emitter-coupled logic gate

Question 7

A TTL NAND gate with IIL(max) of –1.6 mA per input drives eight TTL inputs. How much current does the drive output sink?

Accepted Answer

–12.8 mA

Answer

–8 mA

Answer

–1.6 mA

Answer

–25.6 mA

Question 8

The nominal value of the dc supply voltage for TTL and CMOS is ________.

Accepted Answer

+5 V

Answer

+3 V

Answer

+9 V

Answer

+12 V

Question 9

Which logic family combines the advantages of CMOS and TTL?

Accepted Answer

BiCMOS

Answer

TTL/CMOS

Answer

ECL

Answer

TTL/MOS