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BOOSTXL-DRV8301: BoostXL-DRV8301 Motor's Current Sense Circuitry

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Part Number:BOOSTXL-DRV8301

Hello,

the opamp outputs for the current sense in the BoostXL-DRV8301 (IA_FB, IB_FB, IC_FB) are all connected to 56 Ohm resistors in series, followed by 2200 pF caps in parallel before reaching ADC pins on the LAUNCHXL-F28069M.

Is that a low pass filter? Or some kind of impedance matching for the ADC input? Or what exacty?

Also could you please explain about the usage of the "Net-Ties" (example J7-J10) in the differential pair paths?

Thanks.


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