Discuss how a flash ADC with a conversion time of 1 s would work for the situation

Question:

Discuss how a flash ADC with a conversion time of 1 μs would work for the situation of Problem 11-30.


Data from Problem 11-30

Assume that the analog signal in Figure 11-38(a) is to be digitized by performing continuous A/D conversions using an eight-bit digital ramp converter whose staircase rises at the rate of 1 V every 25 μs. Sketch the reconstructed signal using the data obtained during the digitizing process. Compare it with the original signal, and discuss what could be done to make it a more accurate representation.


Figure 11-38

Voltage 3 2 AAAA 150 200 250 Time (us) 0 50 100 (a) 300 (b) 350 400

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Related Book For  book-img-for-question

Digital Systems Principles And Application

ISBN: 9780134220130

12th Edition

Authors: Ronald Tocci, Neal Widmer, Gregory Moss

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