ADL5511 be used for envelope detection in HPA and LPA applications?

Document created by analog-archivist Employee on Feb 23, 2016
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Can the ADL5511 be used for envelope detection in HPA and LPA applications?

 

Yes, the ADL5511 has an envelope bandwidth of 130 MHz and a power detection
range of 40 dB.  This makes it feasible for this device to accurately detect
the envelope of a modulated carrier with deep envelope modulation.  In a
so-called "drain modulation" application, the signal from the envelope output
of this detector would be used to drive a fast switching power supply which
would in turn drive the collector or drain of a power transistor.

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