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Digital Electronics
Data Converters
DAC

Questions mapped to DAC under Data Converters.

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Q#1 Data Converters GATE EE 2006 (Set 1) MCQ +2 marks -0.66 marks

A student has made a 3-bit binary down counter and connected to the R- 2R ladder type DAC [Gain = (-1 kΩ/2R)] as shown in figure to generate a staircase waveform.  The output achieved is different as shown in figure.  What could be the possible cause of this error?

 

The resistance values are incorrect

The counter is not working properly

The connection from the counter to DAC is not proper

The R and 2R resistances are interchanged

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Q#2 Data Converters GATE EE 2005 (Set 1) MCQ +1 mark -0.33 marks

A digital-to-analog converter with a full-scale output voltage of 3.5V has a resolution close to 14 mV. Its bit size is:

4

8

16

32

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