Operating the ADL5535/6 with a lower value of choke inductor

Document created by bkamak Employee on Oct 30, 2012Last modified by bkamak Employee on Nov 6, 2012
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Q. The ADL5536 recommends a 470nH choke inductor value for optimal performance? Can the device be operated with a lower value of inductor?

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A. Yes, it is possible to operate the device with a lower value of choke inductor than the one listed on the datasheet. In the document provided, we compared the performance of the amplifier with 4 inductors: 470nH (Default, 100nH, 200nH, 300nH). The data indicates that:

    • § Gain, P1dB remains fairly constant across the sample set
    • § There is a slight degradation in OIP3 when the device is operated with a lower value of choke inductor (39.5dBm vs. 41.3dBm), which might be acceptable depending on application requirements.

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