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APD-Slide9

In this example, note that the filter capacitors have been removed from across the photodiode and on the feedback node in order to obtain a fast transient response. The LT1815 is simply used to measure the transient. The timing scope photo shows that the response time is well within the 100ns limit. For a more complete write-up on APD transient measurement techniques, see LTC Design Note 447.

PTM Published on: 2011-05-13