Datasheet MAX30101 (Maxim) - 4

MAX30101 High-Sensitivity Pulse Oximeter and Heart-Rate Sensor for Wearable Health
Electrical Characteristics (continued)
(VDD = 1.8V, VLED+ = 5.0V, TA = +25°C, min/max are from 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
GREEN LED CHARACTERISTICS (Note 3)
LED Peak Wavelength λP ILED = 50mA, TA = +25°C 530 537 545 nm Full Width at Half Max Δλ ILED = 50mA, TA = +25°C 35 nm Forward Voltage VF ILED = 50mA, TA = +25°C 3.3 V Radiant Power PO ILED = 50mA, TA = +25°C 17.2 mW
PHOTODETECTOR CHARACTERISTICS (Note 3)
Spectral Range of Sensitivity Λ > 30% QE QE: Quantum Efficiency 640 980 nm Radiant Sensitive Area A 1.36 mm2 Dimensions of Radiant Sensitive Area L x W 1.38 x 0.98 mm x 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 INPUTS (SCL, SDA)
Input Logic-Low Voltage VIL 0.3 x VDD V Input Logic-High Voltage VIH 0.7 x VDD V Input Hysteresis VHYS 0.5 x VDD V Input Leakage Current IIN ±0.1 ±1 µA Input Capacitance CIN 10 pF
DIGITAL OUTPUTS (SDA, INT)
Output Low Voltage VOL ISINK = 3mA 0.4 V www.maximintegrated.com Maxim Integrated │

4