Hello Katie2020,
1.BMI160 had 16-bit resolution accelerometer, and supported 2g, 4g, 8g, 16g range. As you known, sensor output is LSB data format. So there is a corresponding relationship between the range and the output data(LSB). For example you set 2g rang, LSB value range is from -16384 to 16384. LSB to g unit convert: (LSB/16384)g
2. If signal frequency was high, you could choose a higher range. Otherwise, you could choose 2g, 4g range.
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