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What is the dynamic range of a 12 bit converter?

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What is the dynamic range of a 12 bit converter?

(a) 81.5dB

(b) 72.24dB

(c) 62.35dB

(d) 10.254dB

This question was posed to me in an international level competition.

This is a very interesting question from Data Conversion in portion Digital Communication Techniques of Avionics

1 Answer

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Best answer
Correct option is (b) 72.24dB

Explanation: 20 log( 2^12-1) = 20 log (4096-1) = 20 log (4095) = 72.24dB.

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