EVB90620 Datasheet, PDF (31/39 Pages) Melexis Microelectronic Systems – High precision non-contact temperature measurements

MLX90620
16x4 IR array
10 Performance Graphs
10.1 Temperature accuracy of the MLX90620
All accuracy specifications apply under settled isothermal conditions only.
Furthermore, the accuracy is only valid if the object fills the FOV of the sensor completely.
300°C
To, °C
200°C
100°C
±1°C ±3% * |To-Ta|
(Uniformity ±1°C ±1.5%*|To-Ta|)
±2.5°C ±3%* |To-Ta|
(Uniformity ±1°C
±1.5%* |To-Ta|)
0°C
-20°C
±5.5°C
-20°C
0°C
±3°C ±5% * |To-Ta|
±4°C ±5% * |To-Ta|
50°C
Ta, °C
85°C
Figure 24: Absolute temperature accuracy for the central four pixels
NOTE: The accuracy is specified for the four central pixels. The accuracy of the rest of the pixels is according
to the uniformity statement
NOTE: For certain combinations of Tambient and Tobject, there can be an additional measurement deviation
of ± 3°C for object temperatures around room temperature, lowering to 1°C for object temperatures around
200°C. This higher deviation occurs in limited, localised temperature regions.
All accuracy specifications apply under settled isothermal conditions only.
3001090620
Rev 4.0
Page 31 of 40
Datasheet IR16x4
19 September 2012