Question
Download Solution PDFWhich ADC type is known for its high speed but relatively lower resolution?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is option 1
Explanation:
1) Flash ADC
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Fastest ADC type.
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Uses a parallel bank of comparators to convert input voltage in a single step.
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Trade-off: very fast but limited resolution (typically 8 bits or less), because the number of comparators doubles with each bit of resolution.
2) Sigma-Delta ADC
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Very high resolution, but slow, because it oversamples and averages.
3) Successive Approximation ADC (SAR)
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Medium speed, medium resolution.
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Not as fast as Flash ADC, but higher resolution.
4) Dual-Slope ADC
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Very high resolution, but slowest.
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Typically used in digital multimeters.
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