INA219 I2C Bus Timing Definitions

Sadanori Kato

Other Parts Discussed in Thread: INA219

Hi,

Are the following timing definitions for a capacitive bus load of 400pF specified in the high speed mode although the I2C bus timing specification is mentioned on page 6 of INA219 data sheet rev.G ?
Could you please give us your advice about it ?

Best regards,
Kato

over 8 years ago

0 Mayrim Verdejo over 8 years ago

TI__Genius 15760 points

Hi Kato,

Thanks for your question. We will be reviewing your question and get back to you.

Regards,

0 Sadanori Kato over 8 years ago in reply to Mayrim Verdejo

Guru 36540 points

Hi Mayrim-san,

Thank you for your quick response.
I am looking forward to hearing from you.

Best regards,
Kato

0 Carolus Andrews over 8 years ago

TI__Mastermind 22560 points

Dear Kato,

The high speed timings specified on our datasheet are characterized at 100pF loading. Unfortunately, we do not perform characterization for this part on 400pF loading. I reached out to the designer, and he said he believes 400pF loading should be achievable on the part, but unfortunately we do not have any data collected for 400pF load. Hope this helps.

Carolus

0 Sadanori Kato over 8 years ago in reply to Carolus Andrews

Guru 36540 points

Hi Carolus-san,

Thank you for explaining so politely.
I understood and will inform our customer of your information.

Best regards,
Kato

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INA219 I2C Bus Timing Definitions