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regarding ad737 IC

Dear All,

i  want to calculate RMS value of Sinusoidal 50Hz waveform. so, i thought  to use AD737 IC. but in the datasheet i have used evaluation board  circuit . it's not working shown in figure "picture 1" in attached figure and also i used figure29 of datasheet shown in "picture 2" in attched figure both  are not working.

so, i'm in great need of this. and i want to make use 1V RMS  measurement.

1V RMS mentioned in the datasheet means either peak-peak  or RMS value.

please, suggest the circuit to be used which will measure 1V rms , 50Hz sinewave.

i'm not getting any application circuit for AD737which is working. please help me.

Thanks  & Regards

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