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INA199A1 What is the difference with INA199B1 function ?

James Su

Intellectual 280 points

INA199A1 What is the difference with INA199B1 function ?

over 9 years ago

0 Rabab Itarsiwala over 9 years ago

TI__Expert 4595 points

Hello James,
The differnce between A and B devices is that B devices have a different ESD structures that are not susceptible to latching with large and fast transient signals (>2kV per microsecond) at the device input pins. So B devices are better suited for those applications where such large and fast transient signals may be present.

0 DHarmon over 9 years ago in reply to Rabab Itarsiwala

TI__Genius 16080 points

James,

Here is the excerpt from the data sheet:

0 K.Yaita over 7 years ago in reply to DHarmon

Guru 29690 points

Hi Team,

The datasheet shows version A has more ESD ratings than B.
Is it typo?

Best Regards,
Yaita / Japan disty

0 Mayrim Verdejo over 7 years ago in reply to K.Yaita

TI__Genius 15760 points

HI Yaita-san,

That is not a typo, that is correct. Version A and Version B have different ESD structures. This difference on ESD structure caused the ESD rating of the B version to be lower than A. We are working on releasing a spin of version B to increase to match A ESD ratings.

I am curious, what datasheet version are you using? Those numbers do not match the ESD ratings of the current datasheet. Please refer to current datasheet.
www.ti.com/.../ina199.pdf

0 K.Yaita over 7 years ago in reply to Mayrim Verdejo

Guru 29690 points

Hi Mayrim-san,

I extracted a datasheet of INA21x.
Thank you for your support.
I understood.

Best Regards,
Yaita