TSL12S, TSL13S, TSL14S
LIGHT-TO-VOLTAGE CONVERTERS
TAOS051E
−
SEPTEMBER 2007
PARAMETER MEASUREMENT INFORMATION
V
DD
Pulse
Generator
LED
(see Note A)
TSL1xS
1
TEST CIRCUIT
−
+
R
L
Output
Min V
O
2
Input
Min E
e
3
Peak V
O
t
dr
t
r
90%
10%
90%
10%
t
df
t
f
Peak E
e
OUTPUT VOLTAGE WAVEFORM (See Note B)
NOTES: A. The input irradiance is supplied by a pulsed AlInGaP light-emitting diode with the following characteristics:
λ
p
= 640 nm,
t
r
< 1
μs,
t
f
< 1
μs.
B. The output waveform is monitored on an oscilloscope with the following characteristics: t
r
< 100 ns, Z
i
≥
1 MΩ, C
i
≤
20 pF.
Figure 1. Switching Times
TYPICAL CHARACTERISTICS
NORMALIZED OUTPUT VOLTAGE
vs
ANGULAR DISPLACEMENT
1
PHOTODIODE SPECTRAL RESPONSIVITY
1
Normalized Output Voltage
0.8
Relative Responsivity
0.8
0.6
0.6
0.4
0.4
0.2
0.2
0
300
0
400
500
600 700 800 900
λ
−
Wavelength
−
nm
1000 1100
80°
60°
40° 20°
0°
20° 40°
θ
−
Angular Displacement
60°
80°
Figure 2
Figure 3
Copyright
E
2007, TAOS Inc.
r
r
4
www.taosinc.com
Optical Axis
The
LUMENOLOGY
r
Company
TAOS [ TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS ]
