Data Sheet

V
DD
to GND .........................................................-0.3V to +2.2V
GND to PGND
......................................................-0.3V to +0.3V
X_DRV, V
LED+
to PGND ...................................... -0.3V to +6.0V
All Other Pins to GND
..........................................-0.3V to +6.0V
Output Short-Circuit Current Duration
....................... Continuous
Continuous Input Current into Any Terminal
....................±20mA
Continuous Power Dissipation (T
A
= +70°C)
OESIP (derate 5.5mW/°C above +70°C) ....................440mW
Operating Temperature Range
.......................... -40°C to +85°C
Junction Temperature
........................................................ +90°C
Soldering Temperature (reflow)
...................................... +260°C
Storage Temperature Range
............................ -40°C to +105°C
OESIP
Junction-to-Ambient Thermal Resistance (θ
JA
) ........180°C/W Junction-to-Case Thermal Resistance (θ
JC
) .................150°C/W
(Note 1)
(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)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
POWER SUPPLY
Power-Supply Voltage V
DD
Guaranteed by RED and IR count
tolerance
1.7 1.8 2.0 V
LED Supply Voltage V
LED+
Guaranteed by PSRR of LED driver
(R_LED+ and IR_LED+ only)
3.1 3.3 5.25 V
Supply Current I
DD
Particle-sensing mode, PW = 215µs,
50sps
600 1100
µA
IR only mode, PW = 215µS, 50sps 600 1100
Supply Current in Shutdown I
SHDN
T
A
= +25°C, MODE = 0x80 0.7 2.5 µA
OPTICAL SENSOR CHARACTERISTICS
ADC Resolution 18 bits
Red ADC Count
(Note 3)
REDC
RED_PA = 0x0C, LED_PW = 0x01,
SPO2_SR = 0x05,
ADC_RGE = 0x00, T
A
= +25°C
65536 Counts
IR ADC Count
(Note 3)
IRC
IR_PA = 0x0C, LED_PW = 0x01,
SPO2_SR = 0x05
ADC_RGE = 0x00, T
A
= +25°C
65536 Counts
Green ADC Count
(Note 3)
GRNC
GRN_PA = 0x24, LED_PW = 0x11,
SPO2_SR = 0x05
ADC_RGE = 0x00, T
A
= +25°C
65536 Counts
SNR IR LED SNR
IR
White card loop-back, LED_PW =
0x11, ADC_RGE = 0x10, T
A
= 25°C
89 300 dB
SNR Red LED SNR
RED
White card loop-back, LED_PW =
0x11, ADC_RGE = 0x10, T
A
= 25°C
88.9 300 dB
SNR Green LED SNR
GREEN
White card loop-back, LED_PW =
0x11, ADC_RGE = 0x01, T
A
= 25°C
80.4 dB
www.maximintegrated.com
Maxim Integrated │ 2
MAX30105 High-Sensitivity Optical Sensor
for Smoke Detection Applications
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
Absolute Maximum Ratings
Package Thermal Characteristics
Electrical Characteristics