• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 46 subscribers
  • Views 309 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Original question:

ADS8168: Determining RC Filter Values for INA190A4 and ADS8168

ADS8168: REFby2 pin floating?

Nik Dua
Prodigy 200 points
Part Number: ADS8168


Hi there,

I'm using an ADS8168 in single differential mode with AIN-COM tied to ground. However I found that on my schematic, the REFby2 pin is floating (not connected to a 1uF cap).

Would this cause any issues?

Thanks!

Nik

  • 0
    TI__Mastermind 48240 points

    Hi Nik,

    It is possible that the REFby2 could oscillate without a load capacitor, which would increase current consumption, but should not cause any other issues.

    You can power this buffer down when not used, in which case you can leave the pin floating.  Take a look at the PD_CNTL register in section 7.6.1.2 of the datasheet for more details.

    Regards,
    Keith N.
    Precision ADC Applications