EVB90620 Datasheet, PDF (19/39 Pages) Melexis Microelectronic Systems – High precision non-contact temperature measurements

MLX90620
16x4 IR array
V V _{CP _ OFF _ COMP}
CP
A_CP
B_CP
2 ^{Bi _ scale}
T_a
T_{a _ 0}
40
48
54
2⁸
28.16
25
8.67
A_i(2,8) 0xD6 214 , decimal value
Sign check 214 127 A_i(2,8) 214 256 42
B_i(2,8) 0xC1 193 , decimal value
Sign check 193 127 B_i(2,8) 193 256 63
V V _{IR(2,8) _ OFF _ COMP}
IR ( 2 ,8 )
A_{i ( 2 ,8)}
B_{i ( 2,8)}
2^{bi _ scale}
T_a
T_{a _ 0}
144
42
63
2⁸
28.16
25
186.78
TGC 0x23 35 , decimal value
Sign check 35 127 TGC 35
V_{IR(i, j) _ TGC _ COMP}
V_{IR(i, j) _ OFF _ COMP}
TGC
32
.V_IR
_
CP
_
OFF
_
COMP
186.78 ³⁵ .8.67 177.30
32
256. _ H _ L 256.121 153 31129 _0.949981
32768
32768
32768
V_{IR(i, j ) _ COMPENSATED}
V_{IR(i, j ) _ TGC _ COMP}
177.30 _186.63
0.949981
256. _{0 _ H}
0_L
TGC
32
256.
CP _ H
CP _ L
(2,8)
2 ^{0 _ SCALERE}
(2,8)
2 ^SCALERE
256.213 228 ³⁵ 256 0 0
(2,8)
32
2⁴²
143
2³³
2.9097.10 ⁸
T_{O ( 2 ,8 )}
V_{IR( 2,8) _ COMPENSATED}
4
(2,8)
T_a 273.15 ⁴ 273.15
T_{O ( 2 , 8)}
186.63
4
2.9097.10 ⁸
28.16 273.15 ⁴ 273.15 74.79 C
3001090620
Rev 4.0
Page 19 of 40
Datasheet IR16x4
19 September 2012