Can ADE9153A work in DC disabling the High-Pass Filter (1.25 Hz)?

Hi Luigi, 

Is this an EVSE application that will need MID/CTEP compliance?

Regards,

Jason

Hi Jason,

Yes application is EVSE and MID and CTEP compliance is something we are looking at too.

Do you have any reference related to how the ADE9153A performs in DC?

Any info is appreciated. Thank you in advance.

Luigi 

Hi Luigi, 

The ADE9153A won't have the required ADC performance for DC measurements.

I do recommend the ADE9103, ADE9112, or ADE9113 ADCs for shunt based DC measurements. The ADE9178 is metrology IC that pairs with any of those devices. The ADE9178 is targeted for AC applications, but it would likely be a useful starting point.   

Regards,

Jason

Hi Jason,

Thank you for your suggestions. However, I noticed that the self-calibration feature of the ADE9153A is not present in the ADE9103, ADE9112, or ADE9113. Could you confirm if this feature is available in any of the recommended ICs or suggest an alternative solution for this?

Also, could you clarify which specific ADE9153A technical specification is not being met in terms of DC measurement performance? This would help us understand whether the limitation is acceptable for our application or if we need to explore other options.

Looking forward to your response.

Best regards,
Luigi

Hi Luigi, 

You are correct; The ADE9103/ADE9112/ADE9113 do not have auto-calibration.

While auto-calibration in ADE9153A is a wonderful feature in some application spaces, when we do energy metering for billing purposes, the standards will almost certainly require traceable calibration. Auto-calibration, by its nature, is skipping this step. And while it is possible to verify the auto-calibration against a traceable standard, that would be essentially the same as running a calibration on the system.

The specific issue with the ADE9153A DC accuracy relates to the offset. AN-1304 goes into detail on an earlier generation of parts similar in function to the ADE9113, but it shows how to go from datasheet specs to expected DC performance.

Regards,
Jason