LTC2470 reading jumps by 15

I'm using the LTC2470 to read the output of an analog hall effect sensor and it is working fine except that the reading jumps by steps of about 15 numerically as the sensor output changes (I assume 4 bits). Is there some reason why the 4 lowest bits would not be changing or somehow missing from transmission? I'm reading it with a PIC microcontroller and tried changing the SPI communication parameters which did not help.

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    •  Analog Employees 
    on Jul 31, 2018 6:53 PM

    I can help you with this issue; let me ask a few questions.

    Do the four LSB's remain fixed all the time?

    Is the overall 16 bit reading roughly correct, except for the four LSB's?

    Are you following the timing diagram on page 10 of the datasheet?

  • 0
    •  Analog Employees 
    on Aug 24, 2018 12:52 PM
    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    EZ Admin