INA169: INA169, How to connect filter for SBOA295 floating ground application

Wei-Hao Chen (TW-FAE)

Part Number: INA169

Hi team,

My customer is interested in SBOA295 design to support higher VCM for INA169, but they are not sure about how to connect ground of the common mode filter cap. Should it be connected to the actual GND or floating GND of the device?

Thanks a lot.

Best Regards,

Wei-Hao

over 6 years ago

0 Patrick Simmons over 6 years ago

TI__Mastermind 26335 points

Hello Wei-Hao Chen,

Thanks for reaching out on the forum. Either actual gnd or the floating device ground should be fine. Likely your customer may want to use the floating device gnd as the voltage requirement is much smaller and probably cheaper.

Amplifiers

Amplifiers forum

INA169: INA169, How to connect filter for SBOA295 floating ground application