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ADS7956: It aren't match with Table

Jong Yun Jang
Prodigy 10 points
Part Number: ADS7956

July,2015 Revised Version DataSheet of ADS7956

38 pages Table 9 

1111 1111 1111 = 3FF ?

0011 1111 1111 = 3FF isn't it?

i think just.. simple mis-Writing  isn't it?

below h"200" and h"1ff" also..

  • 0
    TI__Expert 3082 points

    Hello Jong Yun Jang,

    The ADS7956 is a 10-bit device, so the output code we are interested in should be 10-bits. When looking at Table 9, I understand your confusion but in order to interpret the binary code into a hex code you will need to remove the two least significant bits.

    Below shows the table with the two least significant bits removed:

    Description Binary Code Hex Code
    Full Scale 1111 1111 11 3FF
    Midscale 1000 0000 00 200
    Midscale - 1 LSB 0111 1111 11 1FF
    Zero 0000 0000 00 000

    I hope this helps answer your question. Please reach out with any follow-ups.

    Thank you,

    Reed Kaczmarek