MLX90621 datasheet(16/44 Pages) MELEXIS

номер детали	MLX90621

подробное описание детали	16x4 IR array

PDF	44 Pages

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производитель	MELEXIS [Melexis Microelectronic Systems]

домашняя страница	http://www.melexis.com

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16 / 44 page

MLX90621

16x4 IR array

Datasheet

39001090621

Page 16 of 44

Datasheet IR16x4

Rev 3.0

15 September 2016

Let’s assume that the input data is:

data

PTAT _

0x67DE = 26590 dec

Thus the ambient temperature is:

E_`lVx_`laEN_`a8y`Z(6M)EP2z2_{/,/=

6_`a

4 25

E]M.MDM3M|6MV5UD3|.6|6wMNU3EN∗R.R33MDN|wR]M∗86M|D6E6|MwR=

R.R6DR|wD]3U

425

R.R6DR|wD]3U

4 25

E]M.MDM3M|6MV√UD|R.N|D]wRRM

R.R6DR|wD]3U

425 ≈ E]M.MDM3M|6MV]M.UwD3NMwD]|

R.R6DR|wD]3U

4 25 ≈ 11.1832077 425

≈ 36.18>

The calculated values for the different resolution settings are given in the table below:

ConfigRegister[5:4]

(bin)

PTAT data (hex)

VTH(25)

KT1

KT2

Ta, °C

0x0CFB

3323.750

10.69189453125

0.0014418363571167

36.18

0x19F7

6647.500

21.38378906250

0.0028836727142334

36.18

0x33EF

13295.000

42.76757812500

0.0057673454284668

36.18

0x67DE

26590.000

85.53515625000

0.0115346908569336

36.18

Table 7 Calculated values at different resolution settings

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