Datasheet

(V
DD
= 1.8V, V
LED+
= 5.0V, T
A
= +25°C, RST, unless otherwise noted.)
860
870
880
890
900
910
-50 0 50 100 150
PEAK WAVELENGTH (nm)
TEMPERATURE (deg C)
IR LED PEAK WAVELENGTH
vs. TEMPERATURE
toc11
LED CURRENT
10mA
20mA
30 m A
50 m A
0
10
20
30
40
50
60
1.80 1.90 2.00 2.10 2.20 2.30
FORWARD CURRENT (mA)
FORWARD VOLTAGE (V)
RED LED FORWARD VOLTAGE vs.
FORWARD CURRENT AT T
A
= +25°C
toc12
MODE = FLEX LED
ADC RES = 18 BITS
ADC SR = 100 SPS
ADC FULL SCALE = 2048nA
0
10
20
30
40
50
60
70
1.25 1.30 1.35 1.40 1.45
FORWARD CURRENT (mA)
FORWARD VOLTAGE (V)
IR LED FORWARD VOLTAGE vs.
FORWARD CURRENT AT T
A
= +25°C
toc13
MODE = FLEX LED
ADC RES = 18 BITS
ADC SR = 100 SPS
ADC FULL SCALE = 2048nA
-70
-60
-50
-40
-30
-20
-10
0
10 100 1000 10000 100000
MAGNITUDE (dB)
FREQUENCY (Hz)
PW = 69µs
PW = 118µs
PW = 215µs
PW = 411µs
AMBIENT LIGHT CANCELLATION
PASSBAND CHARACTERISTICS
toc14
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
400 500 600 700 800 900 1000 1100
QUANTUM EFFICIENCY
WAVELENGTH (nm)
PHOTODIODE QUANTUM EFFICIENCY
vs. WAVELENGTH
toc15
645
650
655
660
665
670
675
-50 0 50 100 150
PEAK WAVELENGTH (nm)
TEMPERATURE (°C)
RED LED PEAK WAVELENGTH
vs. TEMPERATURE
toc10
LED CURRENT:
10mA
20mA
30mA
50mA
MODE = FLEX LED
ADC RES = 18 BITS
ADC SR = 400 SPS
ADC FULL SCALE = 2048nA
Maxim Integrated │ 7
www.maximintegrated.com
MAX30102 High-Sensitivity Pulse Oximeter and
Heart-Rate Sensor for Wearable Health
Typical Operating Characteristics (continued)