AD/DA conversion

Which AD converter architecture is classified as oversampling?

  1. AFlash
  2. BDelta-sigma
  3. CSuccessive approximation
Show answer and explanation

Answer: B. Delta-sigma

ADCs are divided into Nyquist-rate types that sample at about twice the Nyquist frequency (flash, successive approximation, pipeline and others) and oversampling types that sample at much higher rates. The delta-sigma converter is the representative oversampling type.

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More AD/DA conversion questions

  1. What does an AD converter (ADC) do?
  2. Which is the most appropriate example of where a DA converter (DAC) is used?
  3. For AD converters with the same input range, what happens when the resolution (number of bits) is increased?
  4. Which correctly describes "sampling" in AD conversion?
  5. What is the error caused by quantization in AD conversion called?