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AD736 Production
The AD736 is a low power, precision, monolithic true rms-to-dc converter. It is laser trimmed to provide a maximum error of Â±0.3 mV Â± 0.3% of reading...
Datasheet
AD736 on Analog.com

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AD736

Anand_Murthy on Aug 1, 2020

Dear Sir,

Can I able to use AD736 for Both AC Input and DC Input?
Is it possible to use for both AC and DC Signal Sensing?

I tested with AC Singal Conversion true RMS to DC working properly, for DC signal Input I am not getting any output.

Please suggest some possible ways for my problem.

Regards
Murthy

Anand_Murthy on Aug 3, 2020 6:55 AM
0

By Connecting Pin 1 and Pin 8, Pin 2 Will accept DC input?
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DBautista

on Aug 9, 2020 8:39 PM in reply to Anand_Murthy
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Hi Anand_Murthy,

AD736 should be able to accommodate both AC and DC inputs.
May I know if you're measuring through your pcb design or are you using the evaluation board? The evaluation board description on AD736's datasheet page 17 stated the proper configuration to enable ac and dc measurements.

If you're using your own design, May I see your schematic? Can you check if your input is in dc-coupled configuration?

The Cc as stated on page 14 is used to set the -3dB roll off. This is only optional depending on your application.
Let me know if you have more concerns Anand_Murthy.

Thanks and Best Regards,
Dann
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