GATE EE 2016 Set 1 — Question 20
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Analog & Digital Electronics → Data Conversion Circuits → Resolution & Quantization Error
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Question
A temperature in the range of to is to be measured with a resolution of . The minimum number of ADC bits required to get a matching dynamic range of the temperature sensor is
Correct answer
(B) 10
Solution
Step 1: Temperature spanStep 2: Number of levels neededWith a resolution of , the number of steps over the span is(951 distinct levels including both end points).Step 3: Minimum number of bitsAn -bit ADC gives levels, so we need :
- (not enough)
- (enough)
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