TSL238T Datasheet, PDF (5/13 Pages) TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS – HIGH-SENSITIVITY LIGHT-TO-FREQUENCY CONVERTER

TSL238T
HIGH-SENSITIVITY
LIGHT-TO-FREQUENCY CONVERTER
TAOS080G − DECEMBER 2007
TYPICAL CHARACTERISTICS
OUTPUT FREQUENCY
vs
IRRADIANCE
PHOTODIODE SPECTRAL RESPONSIVITY
1000
1
V_DD = 5 V
λ_p = 640 nm
100 _{TA = 25°C}
lid ¹⁰
1
va ^0.1
ill ^0.01
t _0.001
0.001 0.01 0.1
1
10 10 0 1 k
G _{s Ee − Irradiance − μW/cm2}
A ^t Figure 1
s n SUPPLY CURRENT
vs.
e _{FREE-AIR TEMPERATURE}
m ^{t 1.6}
a ⁿ _1.4
co _1.2
al ₁
ic _0.8
hn _0.6
−40
−15
10
35
60
85
c_{TA − Free-Air Temperature − °C}
Te ^{Figure 3}
0.8
0.6
0.4
0.2
0
300 400
500 600 700 800 900 1000 1100
λ − Wavelength − nm
Figure 2
OUTPUT FREQUENCY
vs.
FREE-AIR TEMPERATURE
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
−25
0
25
50
75
T_A − Free-Air Temperature − °C
Figure 4
Copyright E 2007, TAOS Inc.
4
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