ISL29102 Datasheet, PDF (4/9 Pages) Intersil Corporation – Low Power Ambient Light-to-Voltage Non-Linear Converter

ISL29102
POWER SUPPLY
OR
SOURCE METER
V_DD
FUNCTION
GENERATOR
ISL29102
R_EXT
V_OUT
FIGURE 1. TEST CIRCUIT FOR RISE/FALL TIME
MEASUREMENT
Typical Performance Curves
1.2
HUMAN EYE RESPONSE
1.0
0.8
0.6
LIGHT SENSOR RESPONSE
0.4
0.2
0.0
-0.2
300 400
600
800
1.0k 1.1k
WAVELENGTH (nm)
FIGURE 3. SPECTRAL RESPONSE
INPUT
LIGHT
10% 90%
t_R
t_S
OUTPUT
90%
t_F%
10%
t_D
FIGURE 2. TIMING DIAGRAM
1.2
1.0
SUN
0.8
HALOGEN
0.6
INCANDESCENT
0.4
FLUORESCENT
0.2
0
300 400 500 600 700 800 900 1000 1100
WAVELENGTH (nm)
FIGURE 4. SPECTRUM OF LIGHT SOURCES
RADIATION PATTERN
LUMINOSITY
20° ^{10° 0°}
30°
ANGLE _40°
50°
60°
10° _20°
30°
40°
50°
60°
70°
70°
80°
80°
90°
90°
0.2 0.4 0.6 0.8 1.0
RELATIVE SENSITIVITY
FIGURE 5. RADIATION PATTERN
4
FN6483.1
July 15, 2010