VL6180 datasheet(31/73 Pages) STMICROELECTRONICS

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VL6180

Ranging specification

3.1

Proximity ranging (0 to 100mm)

The following table specifies ranging performance up to 100mm. These results are derived

from characterization of both typical and corner samples (representative of worst case

process conditions).

Unless specified otherwise, all results were performed at room temperature (23°C), nominal

voltage (2.8V) and in the dark. Results are based on the average of 100 measurements for

a 17% reflective target @ 50mm.

3.1.1

Max range vs. ambient light level

The data shown in this section is worst case data for reference only.

Table 14 shows the worst case maximum range achievable under different ambient light

conditions.

Table 13. Ranging specification 0 to 100mm

Parameter

Min.

Typ.

Max.

Unit

Noise(1)

1. Maximum standard deviation of 100 measurements

2.0

Range offset error(2)

2. Maximum offset drift after 3 reflow cycles. This error can be removed by re-calibration in the final system

Temperature dependent drift (3)

3. Tested over optimum operating temperature range (see Table 20.: Normal operating conditions)

-9

Voltage dependent drift (4)

4. Tested over optimum operating voltage range (see Table 20.: Normal operating conditions)

-3

Convergence time (5)

5. Based on a 3% reflective target @ 100 mm

Table 14. Worst case max range vs. ambient 0 to 100mm(1)(2)

1. Tested in an integrating sphere (repeatable lab test, not representative of real world ambient light) at 1

kLux and 5 kLux (halogen light source) using 80 x 80 mm targets. Due to high IR content, 5 kLux halogen

light approximates to 10 kLux to 15 kLux natural sunlight.

2. SNR limit of 0.1 applied. Note: maximum range could be increased by reducing the SNR limit to 0.06

Target

reflectance

In the dark(3)

3. Also applicable to lighting conditions with low IR content e.g typical office fluorescent lighting

Worst case indoor light

(1 kLux diffuse halogen)

High ambient light

(5 kLux diffuse halogen)

Unit

> 100

> 80

> 40

> 100

> 90

> 45

17%

> 100

> 60

88%

> 100

> 70

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