EVALUATION KIT AVAILABLE
MAX30110
Optimized Pulse-Oximeter and
Heart Rate AFE forWearable Health
General Description
The MAX30110 is a complete optical pulse oximetry and
heart rate detection integrated analog front-end. The
MAX30110 has a high-resolution, optical readout signal-
processing channel with built-in ambient light cancellation,
as well as high-current LED driver DACs, to form a complete
optical readout signal chain. With external LED(s) and
photo diode(s), the MAX30110 offers the lowest power,
highest performance heart rate detection solution for wrist
applications.
The MAX30110 operates on a 1.8V main supply voltage,
with a separate 3.1V to 5.25V LED driver power supply.
The device supports a standard SPI compatible interface,
as well as shutdown modes through the software with
near-zero standby current, allowing the power rails to
remain powered at all times.
●
Receive Section
• 19-bit Optical ADC Path to Support the Lowest
Perfusions Situations
• Low 25pA-RMS Input Referred Noise to Minimize
LED Power Under Most Conditions
•
High Ambient Light Input Range of 200μA and
to Support Extraction of HRM Signal in the Most
Adverse Lighting Conditions
• Built-in Front And Back-End Ambient Light Cancellation,
Improving Rejection and Eliminating System
Complexity of Dealing with Ambient Light
•
Short Exposure Pulse Widths of 52μs, 104μs,
206μs, 417μs for Efficient Uses of LED Light
• Multiple Sample Rate Options from 20sps to
3.2ksps
●
Ultra-Low-Power Operation for Mobile and Body-
Wearable Device
• Dynamic Power-Down Modes to 100sps for
Low-Power Consumption
•
Full AFE Power Consumption of Less Than 25μA
(Typ) at 25sps
• Large 32 Sample FIFO to Support Batch Processing
in the Microcontroller
• Variety of System Monitors Mappable to Interrupts
to Off-Load System Monitoring Functions From the
Microcontroller
•
Low Shutdown Current = 1.4μA (typ)
●
SPI Interface
●
Supports a Single 1.8V Supply with Separate 3.1V to
5.25V LED Supply
● Miniature 2.8mm x 2.0mm, 6x4, 0.4mm Ball Pitch
WLP Package
● -40°C to +85°C Operating Temperature Range
Ordering Information
appears at end of data sheet.
Applications
●
Wrist-Worn Wearable Devices
●
In-Ear Wearable Devices
●
SpO
2
Monitoring Devices
●
Fitness Wearable Devices
Benefits and Features
●
Reflective or Transmissive Heart Rate, Heart Rate
Variability, or SpO
2
Monitoring
●
Transmit Section
• Two 8-bit LED Current DACs
• Four Current Ranges 50mA, 100mA, 150mA, 200mA
• Low Noise Current Sources for High Peak Transmit
to Receive Dynamic Range
• Low 160mV Dropout to Support Direct Drive From
Rechargeable Li Battery
• High Output Impedance and High Supply Rejection
to Support Unregulated Supply or Direct Drive
From Boost Switcher Supply
19-100092; Rev 0; 6/17
MAX30110
Optimized Pulse-Oximeter and
Heart Rate AFE for Wearable Health
Absolute Maximum Ratings
VDD_ANA to GND_ANA ......................................-0.3V
to +2.2V
VDD_DIG to GND_ANA .......................................-0.3V
to +2.2V
VDD_ANA to VDD_DIG........................................-0.3V
to +0.3V
PGND to GND_ANA.............................................-0.3V
to +0.3V
GND_DIG to GND_ANA.......................................-0.3V
to +0.3V
VLED to PGND.....................................................-0.3V
to +6.0V
LED1_DRV to PGND ................................ -0.3V to V
LED
+ 0.3V
LED2_DRV to PGND ................................ -0.3V to V
LED
+ 0.3V
PD_GND to GND_ANA ...................................Internally Shorted
SDO, SDI, CSB, SCLK to GND_ANA ..................-0.3V
to +6.0V
All other pins to GND_ANA ..................................-0.3V
to +2.2V
Output Short-Circuit Duration ....................................Continuous
Continuous Input Current Into Any Pin
(except LEDx_DRV Pins) ............................................±20mA
Continuous Power Dissipation, WLP
(T
A
= +70ºC, derate 5.5mW/°C above +70°C)
............440mW
Operating Temperature Range ...........................
-40°C to +85°C
Storage Temperature Range ............................
-40°C to +105°C
Soldering Temperature (reflow) .......................................+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Package Information
24-Bump WLP
Outline Number
Land Pattern Number
THERMAL RESISTANCE, FOUR-LAYER BOARD:
Junction to Ambient (θ
JA
)
49°C/W
For the latest package outline information and land patterns (footprints), go to
www.maximintegrated.com/packages.
Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
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.
PACKAGE CODE
21-100088
Refer to
Application Note 1891
W241C2+1
www.maximintegrated.com
Maxim Integrated
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