Electronics and Communication Engineering - Electronic Devices and Circuits

31.
A DAC has full scale output of 5 V. If accuracy is ± 0.2% the maximum error for an output of 1 V is
5 mV
10 mV
2 mV
20 mV
Answer: Option
Explanation:

Maximum error = = 10 mV.


32.
Binary number 1101101101 is equal to decimal number
3289
2289
1289
289
Answer: Option
Explanation:

2048 + 1024 + 128 + 64 + 16 + 8 + 1 = 3289 in decimal.


33.
A 16:1 multiplexer has 4 select input lines.
True
False
Answer: Option
Explanation:

24 = 16.


34.
Which one of the following can be used as parallel to series converter?
Decoder
Digital counter
Multiplexer
Demultiplexer
Answer: Option
Explanation:

It converts parallel data into serial data.


35.
What will be conversion time of a successive approximation A/D converter which uses 2 MHz clock and 5 bit binary ladder containing 8 V reference.?
2.5 μ sec
25 μ sec
3 μ sec
4 μ sec
Answer: Option
Explanation:

.