AMC3330: Simulation

ziad jabbour

Part Number: AMC3330

Hello

I am designing an Iot device powered via isolated power supply from the 230VAC main sector. we need to measure the 230VAC via an isolated measrment systeme

I identified the AMC3330,

my questions are :

I want to measure the input voltage via a 3V3 microcontroller system, the AMC3330 ( using 1,6Meg and 10K resistors as requested in the datasheet is powered via 5VDC) : any recomendation to deliver a single ended Analog signal to the ADC ?

I tryed to use the spice model with Tina and Ltspice, it is not working : any hints about simulation models please ?

best regards

Ziad

over 1 year ago

0 ziad jabbour over 1 year ago

Prodigy 50 points

I found that INN is below HGND, to fix the probleme i connected the neutral to HGND on my simulation

I need to measure between the phase and the neutral, shall i connect the neutral to my hgnd on the demo board ?

best regards

0 Eva Mason over 1 year ago in reply to ziad jabbour

TI__Expert 5705 points

Hi Ziad,

Thank you for your questions. To deliver a differential input to a single ended input, you can use an op-amp. Please reference this cookbook for additional information. Also, connecting the neutral line to HGND on the devices should work well.

Best regards,

Eva

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AMC3330: Simulation