Datasheet MAX30102 (Maxim) - 4

MAX30102 High-Sensitivity Pulse Oximeter and Heart-Rate Sensor for Wearable Health
Electrical Characteristics (continued)
(VDD = 1.8V, VLED+ = 5.0V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS IR LED CHARACTERISTICS (Note 3)
LED Peak Wavelength λP ILED = 20mA, TA = +25°C 870 880 900 nm Full Width at Half Max Δλ ILED = 20mA, TA = +25°C 30 nm Forward Voltage VF ILED = 20mA, TA = +25°C 1.4 V Radiant Power PO ILED = 20mA, TA = +25°C 6.5 mW
RED LED CHARACTERISTICS (Note 3)
LED Peak Wavelength λP ILED = 20mA, TA = +25°C 650 660 670 nm Full Width at Half Max Δλ ILED = 20mA, TA = +25°C 20 nm Forward Voltage VF ILED = 20mA, TA = +25°C 2.1 V Radiant Power PO ILED = 20mA, TA = +25°C 9.8 mW
PHOTODETECTOR CHARACTERISTICS (Note 3)
Spectral Range of Sensitivity λ (QE > 50%) QE: Quantum Efficiency 600 900 nm Radiant Sensitive Area A 1.36 mm2 Dimensions of Radiant Sensitive mm x Area L x W 1.38 x 0.98 mm
INTERNAL DIE TEMPERATURE SENSOR
Temperature ADC Acquisition Time TT TA = +25°C 29 ms Temperature Sensor Accuracy TA TA = +25°C ±1 °C Temperature Sensor Minimum Range TMIN -40 °C Temperature Sensor Maximum Range TMAX 85 °C
DIGITAL INPUT CHARACTERISTICS: SCL, SDA
Input High Voltage VIH VDD = 2V 0.7 x V V DD Input Low Voltage VIL VDD = 2V 0.3 x V V DD Hysteresis Voltage VH 0.2 V Input Leakage Current IIN VIN = GND or VDD (STATIC) ±0.05 ±1 µA
DIGITAL OUTPUT CHARACTERISTICS: SDA, INT
Ouput Low Voltage VOL ISINK = 6mA 0.2 V www.maximintegrated.com Maxim Integrated │

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