Data Sheet

(V
DD
= 1.8V, V
LED+
= 5.0V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= 25°C.) (Note 2)
Radiant Power P
O
I
LED
= 20mA, T
A
= +25°C 9.8 mW
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
GREEN LED CHARACTERISTICS (Note 4)
LED Peak Wavelength λ
P
I
LED
= 50mA, T
A
= +25°C 530 537 545 nm
Full Width at Half Max Δλ I
LED
= 50mA, T
A
= +25°C 35 nm
Forward Voltage V
F
I
LED
= 50mA, T
A
= +25°C 33 V
Radiant Power P
O
I
LED
= 50mA, T
A
= +25°C 17.2 mW
PHOTODETECTOR CHARACTERISTICS (Note 4)
Spectral Range of Sensitivity
Λ > 30% QE
QE: Quantum Efciency 640 980 nm
Radiant Sensitive Area A 1.36 mm
2
Dimensions of Radiant Sensitive
Area
L x W
1.38 x
0.98
mm x
mm
INTERNAL DIE TEMPERATURE SENSOR
Temperature ADC Acquisition
Time
T
T
T
A
= +25°C 29 ms
Temperature Sensor Accuracy T
A
T
A
= +25°C ±1 °C
Temperature Sensor Minimum
Range
T
MIN
-40 °C
Temperature Sensor Maximum
Range
T
MAX
85 °C
DIGITAL INPUTS (SCL, SDA)
Input Logic-Low Voltage V
IL
0.3 x
V
DD
V
Input Logic-High Voltage V
IH
0.7 x
V
DD
V
Input Hysteresis V
HYS
0.5 x
V
DD
V
Input Leakage Current I
IN
±0.1 ±1 µA
Input Capacitance C
IN
10 pF
DIGITAL OUTPUTS (SDA, INT)
Output Low Voltage V
OL
I
SINK
= 3mA 0.4 V
I
2
C TIMING CHARACTERISTICS
I
2
C Write Address AE Hex
I
2
C Read Address AF Hex
SCL Clock Frequency f
SCL
Lower limit not tested 0 400 kHz
Bus Free Time Between STOP
and START Condition
t
BUF
1.3 µs
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Maxim Integrated │ 4
MAX30105 High-Sensitivity Optical Sensor
for Smoke Detection Applications
Electrical Characteristics (continued)