ADIS16250: Help with setting up SPI

[SteveB]

Do you know what the "LSB" is on the ADIS16250 datasheet? I think it is being used as a unit. Thanks

Yes, it is. See Table 6. On the far right, it shows that each bit, for the different outputs, represents a particular values. For instance, each bit of the GYRO_OUT register is equal to 0.07326°/sec (when scaling is set to 320°/sec). So, if this register was %0000 0111 1101 0000 (2000), it would mean a value of 2000 * 0.07326 = 146.52°/sec.

If you look at table 1, you see the SENSITIVITY parameters (Compare this to table 7):
Range = 320°/sec, LSB is 1/13.65 = 0.07326 °/sec
Range = 160°/sec, LSB is 1/27.30 = 0.03663 °/sec
Range = 080°/sec, LSB is 1/54.60 = 0.018315 °/sec
EDIT: These numbers are also presented in the text below table 12


HTH,
Steve

EDIT: Here is a link to the datasheet to keep others from having to search for it.