AMC1303M0520: Using Two Shunt Sensing & Two AMC1303Mx

Sanghee Byun

Part Number: AMC1303M0520

Hi support,

1. When using Two Shunt Sensing & Two AMC1303Mx, Is it Possible to each AMC1303Mx AGND common?

<System Architecture - Use Two Shunt Sensing>

2. Is it Possible to AMC1303Mx AGND and DGND common?

Thanks,

Sanghee

over 4 years ago

0 Alexander Smith over 4 years ago

TI__Guru 51051 points

Hi Sanghee,

Can you please re-attach your photos?

0 Sanghee Byun over 4 years ago in reply to Alexander Smith

Prodigy 50 points

1. Is it Possible to AMC1303Mx AGND and DGND common?

Thanks,

Sanghee

0 Alexander Smith over 4 years ago in reply to Sanghee Byun

TI__Guru 51051 points

Hi Sanghee,

Thank you for confirming.

The device will function from an analog perspective if both supply grounds are tied together, however the device will provide no isolation between the high and low side since the grounds are tied together.

If you are having difficulty powering the high-side of the device, I would recommend looking at our AMC33xx devices, such as the AMC3306.

Please let me know if you have additional questions.

Because of the holidays, TI E2E™ design support forum responses will be delayed from Dec. 25 through Jan. 2. Thank you for your patience.

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AMC1303M0520: Using Two Shunt Sensing & Two AMC1303Mx