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ADS1015-Q1: Four single-end mode config qurey

Jingcheng ye
Intellectual 560 points
Part Number: ADS1015-Q1
Other Parts Discussed in Thread: ADS1015

HI TI expert

Here is query about the ADS1015 single-end config :

User sernario : AIN0~3 need work in the single-end mode ,but in config register MUX[2:0] seems can only config one pin mode.

My question is : How to config all four anlog input pin as single-end mode?

BR Jingcheng

  • +1
    TI__Guru** 113765 points

    Hi Jingcheng,

    The ADS1015 has a single ADC with a muxed input.  This means that you can only select one mux selection at a time and get the conversion result.  It is possible to set the AIN0 through AIN3 inputs to single-ended operation as shown in the datasheet register screen snippet you showed in your post (those selections where AINN = GND).  You would make the first mux selection and take the conversion.  Then switching to the next mux selection and take the conversion while continuing that same pattern until all four channels are converted.

    Best regards,

    Bob B