3.2.2. Key Parameters

Try these first

1. 1.

   What does the resolution of an ADC refer to?

   Hint

   Think about how many different values the output can represent.

2. 2.

   Why is the sampling rate important?

   Hint

   Consider what can happen if we sample too slowly.

3. 3.

   What defines the resolution of an ADC?

   • Number of sensors
   • Number of bits in output
   • Input voltage range

   Hint

   Think about how many different values can be represented.

4. 4.

   True or False: Higher SNR is better for signal clarity.

   • True
   • False

   Hint

   Consider what happens when there is too much noise.

5. 5.

   An environmental sensor operates with an ADC that has a sampling rate of 1 kHz. If the signal changes at a frequency of 600 Hz, is this sufficient? Justify your answer.

   Hint

   Apply Nyquist Theorem here for validation.

6. 6.

   An engineer is choosing a 12-bit ADC for a sensor that measures 0 to 10V, but accidentally selects an 8-bit ADC. How will this affect measurements?

   Hint

   Consider the effect of fewer steps on signal representation.