Data Sheet

Ranging performances VL53L1X
16/35 DocID031281 Rev 2
3.2 Accuracy, repeatability, and ranging error definitions
3.2.1 Accuracy definition
Accuracy = mean distance – actual distance
• Mean distance is the average of 32 measured distances
• Actual distance is the actual target distance
Accuracy can be affected by an offset error, a temperature drift, and a voltage drift.
3.2.2 Repeatability definition
Repeatability is the standard deviation of the mean ranging value of 32 measurements. It
can be improved by increasing the timing budget. A typical repeatability value for VL53L1X
is from
±1 % to ±0.15 % depending on the timing budget and the ambient light.
3.2.3 Ranging error definition
Ranging error = accuracy + repeatability error.
This ranging error value is our metrics in the following performances tables.
3.3 Minimum ranging distance
The minimum ranging distance is 4 cm. Under this minimum distance, the sensor will detect
a target, but the measurement will not be accurate.
3.4 Performances in dark conditions
Test conditions (including those described in Section 3.1: Test conditions) are:
• Ambient light = dark
• Timing budget = 100 ms unless mentioned
• Long distance mode
Table 6. Performances in dark conditions
Parameter Target reflectance Min. value Typ. value
Max distance (cm)
White 88 % 260
360
(400 with TB = 140 ms)
Grey 54 % 220 340
Grey 17 % 80 170
Ranging error (mm) ± 20