AMC1200-Q1: AMC1200-Q1 for AC voltage sense

Gaurav Ingle

Prodigy 60 points

Part Number: AMC1200-Q1
Other Parts Discussed in Thread: AMC1200

Hello TI Team,

I am planning to AMC1200-Q1 for AC Voltage Sense. Does AMC1200-Q1 support for AC voltage Sense?

If yes then,

Can you explore me the point VINN and GND1 is short?

or please share any application note for this.

Thanks,

Gaurav Ingle.

over 2 years ago

0 Alexander Smith over 2 years ago

TI__Guru 54562 points

Hi Gaurav,

Yes, AMC1200 can be used for AC voltage sensing.

VINN is typically tied to the high side ground to ensure that the input signal remains within the input common-mode voltage range.

If you're new to isolated sensing, I recommend reading this article to help understand the different ratings and how the devices are constructed: https://www.electronicdesign.com/power-management/whitepaper/21130089/texas-instruments-introduction-to-isolated-amplifiers-and-modulators

Please keep in mind that the input impedance will be in parallel with the sensing resistor and may result in undesired gain error if not accounted for:

Please let me know if you have additional questions.

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AMC1200-Q1: AMC1200-Q1 for AC voltage sense