INA228: Bus and shunt voltage Linearity error

Lijia Zhu

Part Number: INA228

Hi team,

Could you help to provide the Bus and shunt voltage Linearity error of this device? I can't find them in datasheet. Customer's requirement is <0.5%.

B&R

Lijia

over 1 year ago

0 Mohamed Hamida over 1 year ago

TI__Expert 6602 points

HI Lijia,

Here is the non-linearity error, located on page 5 of the INA228 datasheet:

Best,

Mohamed

0 Lijia Zhu over 1 year ago in reply to Mohamed Hamida

TI__Expert 5720 points

Mohamed ,

INL and DNL is error for ADC, we need the non-linearity error for the analog amplifier before the ADC, is this spec available?

B&R

Lijia

0 Mohamed Hamida over 1 year ago in reply to Lijia Zhu

TI__Expert 6602 points

Hi Lijia,

The INL and DNL error are including the non-linearity error for the amplifier before the ADC. It is also worth noting that the full scale error for the power monitor is at 0.5% (-40°C to 125°C). This should easily meet your requirements. Please let me know if you have any further questions.

Best,

Mohamed

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INA228: Bus and shunt voltage Linearity error