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AS7331 Datasheet(PDF) 34 Page - OSRAM GmbH

No. de pieza AS7331
Descripción Electrónicos  Spectral UVA/B/C Sensor
PDF  72 Pages
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Fabricante Electrónico  OSRAM [OSRAM GmbH]
Página de inicio  http://www.osram.com
Logo OSRAM - OSRAM GmbH

AS7331 Datasheet(HTML) 34 Page - OSRAM GmbH

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AS7331
Functional Description
Datasheet
• PUBLIC
DS001047
• v4-00 • 2023-Mar-24
71
│ 33
TIME(1)
0
1
2
3
4
5
6
7
16x
21250.00
10625.00
5312.50
2656.25
1328.13
664.06
332.03
166.02
8x
42500.00
21250.00
10625.00
5312.50
2656.25
1328.13
664.06
332.03
4x
85000.00
42500.00
21250.00
10625.00
5312.50
2656.25
1328.13
664.06
2x
170000.00
85000.00
42500.00
21250.00
10625.00
5312.50
2656.25
1328.13
1x
340000.00
170000.00
85000.00
42500.00
21250.00
10625.00
5312.50
2656.25
(1)
TIME (TCONV) – given by CREG1:TIME = 0 … 7 dec, NCLK – number of clock cycle within conversion time TCONV, RESOL
– Resolution of internal A/D conversion, GAIN = 1x given by CREG1:GAIN = 11 dec up to GAIN = 2048x given by
CREG1:GAIN = 0 dec (see Figure 48).
(2)
Basic sensitivity of the UVA-channel.
Figure 28:
UVA-
Channel (λ = 315 nm – 410 nm) Programmable FSR and LSB of the Detectable Input Light
Irradiance Ee
TIME(1)
8
9
10
11
12
13
14
15
NCLK
(1)
262144
524288
1.05E+06
2.10E+06
4.19E+06
8.39E+06
1.68E+07
1024
TCONV[s]
(1)
0.256
0.512
1.024
2.048
4.096
8.192
16.384
0.001
RESOL[bit](1)
18
19
20
21
22
23
24
10
GAIN(1)
FSR [µW/cm²] of detectable irradiance Ee (channel A)
2048x
42.50
21.25
10.63
5.31
2.66
1.33
0.66
170.00
1024x
85.00
42.50
21.25
10.63
5.31
2.66
1.33
340.00
512x
170.00
85.00
42.50
21.25
10.63
5.31
2.66
680.00
256x
340.00
170.00
85.00
42.50
21.25
10.63
5.31
1360.00
128x
680.00
340.00
170.00
85.00
42.50
21.25
10.63
2720.00
64x
1360.00
680.00
340.00
170.00
85.00
42.50
21.25
5440.00
32x
2720.00
1360.00
680.00
340.00
170.00
85.00
42.50
10880.00
16x
5440.00
2720.00
1360.00
680.00
340.00
170.00
85.00
21760.00
8x
10880.00
5440.00
2720.00
1360.00
680.00
340.00
170.00
43520.00
4x
21760.00
10880.00
5440.00
2720.00
1360.00
680.00
340.00
87040.00
2x
43520.00
21760.00
10880.00
5440.00
2720.00
1360.00
680.00
174080.00
1x
87040.00
43520.00
21760.00
10880.00
5440.00
2720.00
1360.00
348160.00
GAIN(1)
LSB [nW/cm²]
– least significant bit of FSR (channel A)
2048x
0.65
0.32
0.16
0.08
0.04
0.02
0.01
166.02
1024x
1.30
0.65
0.32
0.16
0.08
0.04
0.02
332.03
512x
2.59
1.30
0.65
0.32
0.16
0.08
0.04
664.06
256x
5.19
2.59
1.30
0.65
0.32
0.16
0.08
1328.13
128x
10.38
5.19
2.59
1.30
0.65
0.32
0.16
2656.25
64x
20.75
10.38
5.19
2.59
1.30
0.65
0.32
5312.50
32x
41.50
20.75
10.38
5.19
2.59
1.30
0.65
10625.00



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