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ADL5511 and other IC's that do envelope detection

I am thinking about using the ADL5511 or an other IC that does envelope detection for a sensor I am building.

I have two signals (demodulated sine waves) from an AD630, where the peak of the signals represent the value I need to measure.

Will this IC or others work for this low of frequency? What must I do to allow it to work?

The problem is these signals are in the KHz range and no where close to ever being in the MHz/Ghz

Using a peak detector circuit like here

allows for diagonal clipping or missing the values entirely. This is a problem because the low amplitudes are more significant than the higher side ones.

Where Vpos=12 and Vneg =-12


[edited by: lallison at 5:05 PM (GMT 0) on 16 Jul 2019]
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