Exercise: Digital Electronics

Questions for: Digital Electronics

A 10 bit D/A converter gives a maximum output of 10.23 V. The resolution is
A:
10 mV
B:
20 mV
C:
15 mV
D:
25 mV
Answer: A

Resolution = V or 10 mV.

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The function Y = A B C + AB C + A B C + A BC is to be realized using discrete gates. The inputs available are A, B, C. We need a total of
A:
8 gates
B:
6 gates
C:
10 gates
D:
5 gates
Answer: A

Three NOT gates, four AND gates and one OR gate, i.e., total of 8 gates.

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In the given figure shows a negative logic AND gate. If positive logic is used this gate is equivalent to
A:
AND gate
B:
OR gate
C:
NOR gate
D:
NAND gate
Answer: C

Y = A B = A + B .

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The minimized version of logic circuit in the given figure is
A:
B:
C:
D:
Answer: A

The Boolean equation is The circuit in the given figure gives .

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Logic analyser is
A:
a multichannel oscilloscope
B:
similar to logic pulser
C:
similar to current tracer
D:
none of the above
Answer: A

It is a multichannel oscilloscope.

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