SD Data Logger mode with spikes(EVAL-ADXL362Z-DB)

Hello all,

I'd like to ask you about EVAL-ADXL362Z-DB with SD Data logger mode.

I tried DB with following conditions.

Battery : coin battery
Mode : SD Data logger mode
ODR : 400 or 200 or 100
Range : 2g
Low Noise Mode : Ultra-Low Noise Mode
Half BW : without check mark

I attached test results.
Pls check test results.

DB_test(data_rate x00) is screen shot of the GUI.
This is replay of data log in SD card.

In these results, Z-Axis has a lot of spikes with equal interval.

However, I checked Real Time Data with following conditions.

Battery : USB
ODR : 400 or 200 or 100
Range : 2g
Low Noise Mode : Ultra-Low Noise Mode
Half BW : without check mark

Then, Z-Axis doesn't have spikes.

I think my condition doesn't have these spikes.

Do you have any information for this?

Best Regards,