Electronics and Experimental Methods-A-D and D-a Converters (CSIR Physical Sciences): Questions 1 - 3 of 3

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Question number: 1

» Electronics and Experimental Methods » A-D and D-a Converters

Appeared in Year: 2013

MCQ▾

Question

If the analog input to an 8 – bit successive approximation ADC is increased from 1.0 V to 2.0 V, then the conversion time will – (June)

Choices

Choice (4) Response

a.

Remain unchanged

b.

Double

c.

Decrease to half its original value

d.

Increase four times

Question number: 2

» Electronics and Experimental Methods » A-D and D-a Converters

Appeared in Year: 2011

MCQ▾

Question

A signal of frequency 10 kHz is being digitized by AD converter. A possible sampling time which can be use is – (June)

Choices

Choice (4) Response

a.

100μs

b.

40μs

c.

200μs

d.

50μs

Question number: 3

» Electronics and Experimental Methods » A-D and D-a Converters

Appeared in Year: 2013

MCQ▾

Question

A 4 – variable switching function is given by, f=Σ(5, 7,8,10, 13, 15)+d(0, 1,2) ; where d is the do not care condition. The minimized form of f in sum of products (SOP) from is – (Dec– 2013)

Choices

Choice (4) Response

a.

AD+BC

b.

A¯C¯+B¯D¯

c.

AB¯+CD¯

d.

B¯D¯+BD

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