TSL12T, TSL13T
LIGHT-TO-VOLTAGE CONVERTERS
TAOS062D
−
APRIL 2007
PARAMETER MEASUREMENT INFORMATION
V
DD
Pulse
Generator
LED
(see Note A)
TSL1x
2
TEST CIRCUIT
−
+
R
L
Output
Min V
O
3
Input
Min E
e
4
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
PHOTODIODE SPECTRAL RESPONSIVITY
1
0.8
Relative Responsivity
0.6
0.4
0.2
0
300
400
500
600 700 800 900
λ
−
Wavelength
−
nm
1000 1100
Figure 2
Copyright
E
2007, TAOS Inc.
r
r
The
LUMENOLOGY
r
Company
4
www.taosinc.com
TAOS [ TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS ]
