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ADS1120: Schematic Review

Jim CHEN
Expert 4795 points
Part Number: ADS1120

Dear Team,

Could you please help to review below schematic? Thank you.

  • 0
    TI__Guru** 113765 points

    Hi Jim,

    One thing I noticed but maybe isn't shown in the schematic snippets is that we recommend using approximately 47 ohm resistors in series with the digital connections for the serial interface.  See section 9.1.1 on page 44 of the ADS1120 datasheet and Figure 72.  Otherwise the connections to the ADS1120 look fine.

    I do have a question about the bottom portion of the given schematic and the net NTC1_ADC as it is not shown where this net connects.  I assume this is a microcontroller ADC input.

    Best regards,

    Bob B