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Original question:

ADS131A04: Frame fault after enabling ADCs, DRDY not going low

ADS131A04: Application of ADS131A04 in the single-ended input

Nitin Pathak
Prodigy 135 points
Part Number: ADS131A04

May I use  ADS131A04 in the single-ended  application instead of differential(with KX220),

Is there any IC which can replace quickfilter QF4A512 

  • 0
    TI__Guru 52722 points

    Hello Nitin,

    Thanks for your post and welcome to the forum!

    To achieve single ended measurements with the ADS131A04 you can use a pseudo differential input configuration, short the negative differential input channel to GND, and enable the negative charge pump. This will allow for single ended measurements down to -1.5V with respect to GND.

    I'm not familiar with the QF4A512, so I'm not sure about offering a replacement. Typically, using an RC filter on the analog inputs is sufficient for these devices in combination with the integrated digital filter.

  • 0 in reply to Alexander Smith
    Prodigy 135 points
    Thanks for your valuable feedback Alexander Smith