Click MAX30101 High-Sensitivity Pulse Oximeter and Heart ...

1 General DescriptionThe MAX30101 is an integrated Pulse oximetry and Heart -rate monitor module. It includes internal LEDs, photode-tectors, optical elements, and low-noise electronicswith ambient light rejection. The MAX30101 provides acomplete system solution to ease the design-in processfor mobile and wearable MAX30101 operates on a single power supplyand a separate power supply for the internal is through a standard I2C-compatibleinterface. The module can be shut down through softwarewith zero standby current, allowing the power rails toremain powered at all Wearable Devices Fitness Assistant Devices Smartphones TabletsBenefits and Features Heart -Rate Monitor and Pulse Oximeter Sensor inLED Reflective Solution Tiny x x 14-Pin Optical Module Integrated Cover Glass for Optimal, RobustPerformance Ultra-Low-Power Operation for Mobile Devices Programmable Sample Rate and LED Current forPower Savings Low-Power Heart -Rate Monitor (< 1mW) Ultra-Low Shutdown Current ( A, typ) Fast Data Output Capability High Sample Rates Robust Motion Artifact Resilience High SNR -40 C to +85 C Operating Temperature RangeOrdering Informationappears at end of data DiagramPHOTO DIODELED DRIVERSRED/IR/GREEN LEDPACKAGINGHUMAN SUBJECTELECTRICALOPTICALAMBIENT LIGHT18-BIT CURRENT ADCAMBIENT LIGHT CANCELLATIONDIGITAL NOISE CANCELLATIONDATA FIFOHOST (AP)

2 I2 CDRIVERHARDWARE FRAMEWORKAPPLICATIONSCOVER GLASSMAX30101 Clickhereto ask about the production status of specific part Pulse Oximeter andHeart-Rate Sensor for Wearable Health19-8453; Rev 3; 6/20 Absolute Maximum RatingsVDDto to + to to + + to to + Other Pins to to + Short-Circuit Current Input Current into Any 20mAContinuous Power Dissipation (TA= +70 C) OESIP ( C above +70 C)..440mWOperating Temperature C to +85 CJunction +90 CSoldering Temperature (reflow)..+260 CStorage Temperature C to +105 CStresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of thedevice 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 forextended periods may affect device Information14 OESIPP ackage CodeF143A5+1 Outline Number21-1048 Land Pattern Number90-0602 THERMAL RESISTANCE, FOUR-LAYER BOARDJ unction-to-Ambient ( JA)180 C/WJunction-to-Case Thermal Resistance ( JC)150 C/WFor the latest package outline information and land patterns (footprints), go that a + , # , or - in the package code indicates RoHS status only.

3 Package drawings may show a differentsuffix character, but the drawing pertains to the package regardless of RoHS thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using afour-layer board. For detailed information on package thermal considerations, refer Characteristics(VDD= , VLED+ = , 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)PARAMETERSYMBOLCONDITIONSMINTYPMAXUNIT SPOWER SUPPLYP ower-Supply VoltageVDDG uaranteed by RED and IR Supply VoltageVLED+ to PGNDVLED+Guaranteed by PSRR of LED driver (REDand IR LED only) by PSRR of LED driver(GREEN LED only). TA= 25 CurrentIDDSpO2and HR mode, PW = 215 s, 50sps6001100 AIR only mode, PW = 215 S, 50sps6001100 Supply Current inShutdownISHDNTA= +25 C, MODE = APULSE OXIMETRY/ Heart -RATE SENSOR CHARACTERISTICSADC Resolution18bitsMAX30101 High-Sensitivity Pulse Oximeter andHeart-Rate Sensor for Wearable Integrated | 2 Electrical Characteristics (continued)(VDD= , VLED+ = , TA= +25 C, min/max are from TA= -40 C to +85 C, unless otherwise noted.)

4 Typical values are at TA=25 C.) (Note 1)PARAMETERSYMBOLCONDITIONSMINTYPMAXUNIT SRed ADC Count (Note2)REDCLED1_PA = 0x0C, LED_PW = 0x01,SPO2_SR = 0x05,ADC_RGE = 0x0065536 CountsIR ADC Count (Note 2)IRCLED2_PA = 0x0C, LED_PW = 0x01,SPO2_SR = 0x05 ADC_RGE = 0x0065536 CountsGreen ADC Count (Note2)GRNCLED3_PA = LED4_PA = 0x24, LED_PW= 0x01,SPO2_SR = 0x05, ADC_RGE = 0x0065536 CountsDark Current CountLED_DCCLED1_PA = LED2_PA = 0x00, LED_PW= 0x03, SPO2_SR = 0x01 ADC_RGE =0x0230128 CountsLED1_PA = LED2_PA = 0x00, LED_PW= 0x03, SPO2_SR = 0x01 ADC_RGE = of FSDC Ambient LightRejection (Note 3)ALRADC counts withfinger on sensorunder directsunlight (100K lux),ADC_RGE = 0x3,LED_PW = 0x03,SPO2_SR = 0x01 Red LED2 CountsADC counts withfinger on sensorunder directsunlight (100K lux),ADC_RGE = 0x3,LED_PW = 0x03,SPO2_SR = 0x02IR LED2 ADC Count PSRR(VDD) < VDD < ,LED_PW = 0x00, SPO2_SR = of FSFrequency = DC to 100kHz, 100mVP-P10 LSBADC Count PSRR(LED Driver Outputs) < VLED+ < , LED1_PA =LED2_PA = 0x0C,LED_PW = 0x01, SPO2_SR = of < VLED+ < , TA= 25 CLED3_PA = LED4_PA = 0x24, LED_PW= 0x01, SPO2_SR = = DC to 100kHz, 100mVP-P10 LSBADC Clock Integration Time(Note 3)INTLED_PW = 0x0069 sLED_PW = 0x01118 LED_PW = 0x02215 LED_PW = 0x03411 MAX30101 High-Sensitivity Pulse Oximeter andHeart-Rate Sensor for Wearable Integrated | 3 Electrical Characteristics (continued)(VDD= , VLED+ = , TA= +25 C, min/max are from TA= -40 C to +85 C, unless otherwise noted.

5 Typical values are at TA=25 C.) (Note 1)PARAMETERSYMBOLCONDITIONSMINTYPMAXUNIT SSlot Timing (TimingBetween SequentialChannel Samples; ,Red Pulse Rising EdgeTo IR Pulse RisingEdge)INTLED_PW = 0x00427 sLED_PW = 0x01525 LED_PW = 0x02720 LED_PW = 0x031107 COVER GLASS CHARACTERISTICS (Note 3)Hydrolytic ResistanceClassPer DIN ISO 719 HGB 1IR LED CHARACTERISTICS (Note 3)LED Peak Wavelength PILED= 20mA, TA= +25 C870880900nmFull Width at Half Max ILED= 20mA, TA= +25 C30nmForward VoltageVFILED= 20mA, TA= +25 PowerPOILED= 20mA, TA= +25 LED CHARACTERISTICS (Note 3)LED Peak Wavelength PILED= 20mA, TA= +25 C650660670nmFull Width at Half Max ILED= 20mA, TA= +25 C20nmForward VoltageVFILED= 20mA, TA= +25 PowerPOILED= 20mA, TA= +25 LED CHARACTERISTICS (Note 3)LED Peak Wavelength PILED= 50mA, TA= +25 C530537545nmFull Width at Half Max ILED= 50mA, TA= +25 C35nmForward VoltageVFILED= 50mA, TA= +25 PowerPOILED= 50mA, TA= +25 CHARACTERISTICS (Note 3)Spectral Range ofSensitivity > 30% QEQE.

6 Quantum Efficiency640980nmRadiant Sensitive of RadiantSensitive AreaL x xmmINTERNAL DIE TEMPERATURE SENSORT emperature ADCA cquisition TimeTTTA= +25 C29msTemperature SensorAccuracyTATA= +25 C 1 CTemperature SensorMinimum RangeTMIN-40 CTemperature SensorMaximum RangeTMAX85 CMAX30101 High-Sensitivity Pulse Oximeter andHeart-Rate Sensor for Wearable Integrated | 4 Electrical Characteristics (continued)(VDD= , VLED+ = , 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)PARAMETERSYMBOLCONDITIONSMINTYPMAXUNIT SDIGITAL INPUTS (SCL, SDA)Input Logic-Low xVDDVI nput Logic-High xVDDVI nput xVDDVI nput Leakage CurrentIIN 1 AInput CapacitanceCIN10pFDIGITAL OUTPUTS (SDA,INT)Output Low VoltageVOLISINK= TIMING CHARACTERISTICSI2C Write AddressAEHexI2C Read AddressAFHexSCL Clock FrequencyfSCLL ower limit not tested0400kHzBus Free Time BetweenSTOP and sHold Time (Repeated)START ConditiontHD, sSCL Pulse -Width sSCL Pulse -Width sSetup Time for aRepeated STARTC onditiontSU, sData Hold TimetHD; sData Setup TimetSU;DAT100nsSetup Time for STOPC onditiontSU; sPulse Width ofSuppressed SpiketSP50nsBus CapacitanceCb400pFSDA and SCL ReceivingRise TimeTr(Note 4)20300nsSDA and SCL ReceivingFall TimetRf(Note 4)20 Transmitting FallTimetof20 1:All devices are 100% production tested at TA= +25 C.

7 Specifications over temperature limits are guaranteed by MaximIntegrated s bench or proprietary automated test equipment (ATE) 2:Specifications are guaranteed by Maxim Integrated s bench characterization and by 100% production test using proprietaryATE setup and Pulse Oximeter andHeart-Rate Sensor for Wearable Integrated | 5 Note 3:For design guidance only. Not production 4:These specifications are guaranteed by design, characterization, or I2C ,STASTART CONDITIONtRtFtLOWtSU,DATtHD,DATtSU,STAtH D,STAREPEATED START CONDITIONtSPtSU,STOtBUFSTOPCONDITIONSTAR TCONDITIONtHIGHF igure 1. I2C-Compatible Interface Timing DiagramMAX30101 High-Sensitivity Pulse Oximeter andHeart-Rate Sensor for Wearable Integrated | 6 Typical Operating Characteristics(VDD= , VLED+= , TA= +25 C,RST, unless otherwise noted.)0102030405060012345 RED LED CURRENT (mA)VLEDVOLTAGE (V)REDRED LEDLED SUPPLYSUPPLY HEADROOMHEADROOMtoc01 ILED= 50mAILED= 20mA0102030405060012345IR LED CURRENT (mA)VLEDVOLTAGE (V)IRIR LEDLED SUPPLYSUPPLY HEADROOMHEADROOMtoc02 ILED= 50mAILED= 20mA0102030405060012345 GREEN LED CURRENT (mA)VLEDVOLTAGE (V)GREENGREEN LEDLED SUPPLYSUPPLY HEADROOMHEADROOMtoc03 ILED= 50mAILED = 20mAVLED= CURRENT (mA)SUPPLY VOLTAGE (V)VVDDDDSUPPLYSUPPLY CURRENTCURRENT VOLTAGEVOLTAGEtoc04 SHUTDOWN MODE050001000015000200002500030000350004 0000450005000005101520 COUNTS (SUM)DISTANCE (mm)

8 DCDC COUNTSCOUNTS DISTANCEDISTANCE FORFORWHITEWHITE HIGHHIGH IMPACTIMPACT STYRENESTYRENE CARDCARDtoc05 GREENIRMODE = SPO2 and HRADC RES = 18 BITsADC SR = 100 SPSADC FULL SCALE = 16384nADCDC COUNTSCOUNTS DISTANCEDISTANCE FORFORWHITEWHITE HIGHHIGH IMPACTIMPACT STYRENESTYRENE CARDCARDREDMODE = LEDADC RES = 18 BITsADC SR = 100 SPSADC FULL SCALE = CURRENT ( A)TEMPERATURE ( C)VVDDDDSHUTDOWNSHUTDOWN CURRENT ( A)TEMPERATURE ( C)VVLEDLEDSHUTDOWNSHUTDOWN TEMPERATURETEMPERATUREVLED= toc07 VLED= Pulse Oximeter andHeart-Rate Sensor for Wearable Integrated | 7 Typical Operating Characteristics (continued)(VDD= , VLED+= , TA= +25 C,RST, unless otherwise noted.) CURRENT (mA)FORWARD VOLTAGE (V)GREENGREEN LEDLED FORWARDFORWARD atat 2525 CCtoc15 MODE = FLEX LEDADC RES = 18 BITsADC SR = 200 SPSADC FULL SCALE = 2048nAMAX30101 High-Sensitivity Pulse Oximeter andHeart-Rate Sensor for Wearable Integrated | 8 Typical Operating Characteristics (continued)(VDD= , VLED+= , TA= +25 C,RST, unless otherwise noted.)

9 Pin +9 VLED+ Pin DescriptionPINNAMEFUNCTION1, 5, 6, 7, 8, Connection. Connect to PCB pad for mechanical Clock Input3 SDAI2C Clock Data, Bidirectional (Open-Drain)4 PGNDP ower Ground of the LED Driver Blocks9, 10 VLED+LED Power Supply (anode connection). Use a bypass capacitor to PGND for best Power Supply Input. Use a bypass capacitor to GND for best Ground13 INTA ctive-Low Interrupt (Open-Drain). Connect to an external voltage with a pullup Pulse Oximeter andHeart-Rate Sensor for Wearable Integrated | 9 Functional Diagrams880nm660nmADCAMBIENT LIGHT CANCELLATIONANALOGADCDIE TEMPOSCILLATORDIGITAL FILTERDIGITALDATAREGISTERLED DRIVERSI2 CCOMMUNICATIONINTSDASCLVDDVLED+ + Pulse Oximeter andHeart-Rate Sensor for Wearable Integrated | 10 Detailed DescriptionThe MAX30101 is a complete Pulse oximetry and Heart - rate sensor system solution module designed for the demandingrequirements of wearable devices.

10 The MAX30101 maintains a very small solution size without sacrificing optical orelectrical performance. Minimal external hardware components are required for integra- tion into a wearable MAX30101 is fully adjustable through software regis- ters, and the digital output data can be stored in a 32-deepFIFO within the IC. The FIFO allows the MAX30101 to be connected to a microcontroller or processor on a shared bus,where the data is not being read continuously from the MAX30101 s SpO2subsystem contains ambient light cancellation (ALC), a continuous-time sigma-delta ADC, and propri- etarydiscrete time filter. The ALC has an internal Track/ Hold circuit to cancel ambient light and increase the effec- tive dynamicrange. The SpO2 ADC has a programmable full-scale ranges from 2 A to 16 A. The ALC can cancel up to 200 A ofambient internal ADC is a continuous time oversampling sigma-delta converter with 18-bit resolution.