MAX44007_11 Datasheet, PDF (4/21 Pages) Maxim Integrated Products – Low-Power Digital Ambient Light Sensor with Enhanced Sensitivity

Low-Power Digital Ambient Light Sensor
with Enhanced Sensitivity
(VCC = 1.8V, default power-up setting; unless otherwise noted.)
Typical Operating Characteristics
SPECTRUM RESPONSE
120
100
MAX44007 RESPONSE
80
60
40
CIE
20
0
300 400 500 600 700 800 900 1000
WAVELENGTH (nm)
RADIATION PATTERN
100
90
80
70
60
50
40
30
20
AUTO MODE,
INCANDESCENT LAMP
10
0
-90 -60 -30 0 30 60 90
LUMINOSITY ANGLE (°)
SPECTRUM OF LIGHT SOURCES
FOR MEASUREMENT
160
140
INCANDESCENT
120
100
SUNLIGHT
80
60
40
20
FLUORESCENT
0
300 400 500 600 700 800 900 1000
WAVELENGTH (nm)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
1.4
0 LUX AND 100 LUX, CONT = 1
1.2
1.0
5000 LUX, CONT = 0
0.8
0.6
100 LUX, CONT = 0
0.4
0.2
AUTO MODE,
FLUORESCENT LAMP
0
1.5 1.8 2.1 2.4 2.7 3.0 3.3 3.6
SUPPLY VOLTAGE (V)
OUTPUT CODE ERROR vs. SUPPLY VOLTAGE
1.10
1.08
1.06
1.04
1.02
1.00
0.98
0.96
0.94
50 AND 300 LUX
0.92
AUTO MODE,
FLUORESCENT LAMP
0.90
1.5 1.8 2.1 2.4 2.7 3.0 3.3 3.6
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. TEMPERATURE
1.2
1.0
V_CC = 3.3V
0.8
0.6
VCC = 1.8V
VCC = 2.5V
0.4
0.2
100 LUX
AUTO MODE,
FLUORESCENT LAMP
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
4