TSL237
HIGH-SENSITIVITY
LIGHT-TO-FREQUENCY CONVERTER
TAOS052J  SEPTEMBER 2008
3
The LUMENOLOGY r Company
r
r
Copyright E 2008, TAOS Inc.
www.taosinc.com
TYPICAL CHARACTERISTICS
1
0.1
0.01
0.001
0.001
0.01
0.1
1
10
10
100
OUTPUT FREQUENCY
vs
IRRADIANCE
100
1 k
E
e
  Irradiance  ?/SPAN>W/cm
2
V
DD
 = 5 V
?/DIV>
p
 = 524 nm
T
A
 = 25?/SPAN>C
1000
Figure 1
Figure 2
300   400    500    600    700
1000
800    900
1100
?SPAN class="pst TSL237SM-LF_2587645_3">  Wavelength  nm
PHOTODIODE SPECTRAL RESPONSIVITY
0
0.2
0.4
0.6
0.8
1
Figure 3
SUPPLY CURRENT
vs.
FREE-AIR TEMPERATURE
T
A
  Free-Air Temperature  ?/SPAN>C
0
0.4
0.8
1.2
1.6
2.0
25
5
15
35
55
75
Figure 4
OUTPUT FREQUENCY
vs.
FREE-AIR TEMPERATURE
T
A
  Free-Air Temperature  ?/SPAN>C
25
5
15
35
55
75
0.900
0.925
0.950
0.975
1.000
1.025
1.050
1.075
1.100
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