MAX30205 Human Body Temperature Sensor General Description Benefits and Features The MAX30205 temperature sensor accurately measures High Accuracy and Low-Voltage Operation Aids temperature and provide an overtemperature alarm/ Designers in Meeting Error and Power Budgets interrupt/shutdown output. This device converts the 0.1C Accuracy (37C to 39C) temperature measurements to digital form using a high- 16-Bit (0.00390625C) Temperature Resolution resolution, sigma-delta, analog-to-digital converter (ADC). 2.7V to 3.3V Supply Voltage Range Accuracy meets clinical thermometry specification of One-Shot and Shutdown Modes Help Reduce Power the ASTM E1112 when soldered on the final PCB. Usage 2 Communication is through an I C-compatible, 2-wire 600A (typ) Operating Supply Current serial interface. Digital Functions Make Integration Easier into Any 2 The I C serial interface accepts standard write byte, read System byte, send byte, and receive byte commands to read the Selectable Timeout Prevents Bus Lockup temperature data and configure the behavior of the open- Separate Open-Drain OS Output Operates as drain overtemperature shutdown output. Interrupt or Comparator/Thermostat Output The MAX30205 features three address select lines with a total of 32 available addresses. The sensor has a 2.7V to 3.3V supply voltage range, low 600A supply current, and 2 a lockup-protected I C-compatible interface that make it ideal for wearable fitness and medical applications. This device is available in an 8-pin TDFN package and operates over the 0NC to +50NC temperature range. Applications Fitness Medical Ordering Information appears at end of data sheet. Typical Application Circuit +2.7V TO +3.3V 4.7k SDA V DD 2 TO I C 0.1F MASTER SCL A0 MAX30205 OS A1 GND A2 19-8505 Rev 0 3/16MAX30205 Human Body Temperature Sensor Absolute Maximum Ratings (All voltages relative to GND.) ESD Protection (All Pins, Human Body Model) (Note 1) ... 4000V Voltage Range on V , SDA, SCL, A0, A1 ............-0.3V to +4V Operating Temperature Range ...............................0NC to +50C DD Voltage Range on A2, OS ........................ -0.3V to (V + 0.3V) Junction Temperature ........................................................+50C DD Input Current at Any Pin ....................................................+5mA Storage Temperature Range .............................. -10NC to +50C Package Input Current ....................................................+20mA Lead Temperature (soldering, 10s) .................................+300C Continuous Power Dissipation (T = +70C) Soldering Temperature (reflow) ......................................+260C A TDFN (derate 24.4mW/NC above +70C) ...............1951.2mW Note 1: Human Body Model, 100pF discharged through a 1.5kI resistor. 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 Thermal Characteristics (Note 2) TDFN Junction-to-Ambient Thermal Resistance ( ) ..........41C/W JA Junction-to-Case Thermal Resistance ( ) .................8C/W JC Note 2: 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. Recommended Operating Conditions (T = 0C to +50C, unless otherwise noted.) (Notes 3, 4) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Operating Supply Voltage V 2.7 3.0 3.3 V DD Input High Voltage V V x 0.7 V IH DD Input Low Voltage V V x 0.3 V IL DD Electrical Characteristics (V = 2.7V to 3.3V, T = 0C to +50C, unless otherwise noted. Typical values are V = 3.0V, T = +25NC.) (Note 3) DD A DD A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS 0C to +15C -0.5 +0.5 +15C to +35.8C -0.3 +0.3 +35.8C to +37C -0.2 +0.2 Thermometer Error (Note 5) T +37C to +39C -0.1 +0.1 C ERR +39C to +41C -0.2 +0.2 +41C to +45C -0.3 +0.3 +45C to +50C -0.5 +0.5 ADC Repeatability T 1 Sigma 0.009 C repeat Temperature Data Resolution 16 Bits Conversion Time 44 50 ms First Conversion Completed Data ready after POR 50 ms Maxim Integrated 2 www.maximintegrated.com