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Avalanche photodiode advantages and disadvantagesThe avalanche photodiode has a number of different characteristics to the normal p-n or p-i-n photodiodes, making them more suitable for use in some applications. In view of this it is worth summarising their advantages and disadvantages..

The main advantages of the avalanche photodiode include:

  • Greater level of sensitivity

The disadvantages of the avalanche photodiode include:

  • Much higher operating voltage may be required.
  • Avalanche photodiode produces a much higher level of noise than a p-n photodiode
  • Avalanche process means that the output is not linear
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