MAX30205:Human Body Temperature Sensor

Clinical Grade Temperature Sensor Offers ±0.1°C (max) Accuracy for Thermometer Applications

The MAX30205 temperature sensor accurately measures temperature and provide an overtemperature alarm/interrupt/shutdown output. This device converts the temperature measurements to digital form using a high-resolution, sigma-delta, analog-to-digital converter (ADC). Accuracy meets clinical thermometry specification of the ASTM E1112 when soldered on the final PCB. Communication is through an I2C-compatible 2-wire serial interface. The I2C serial interface accepts standard write byte, read byte, send byte, and receive byte commands to read the temperature data and configure the behavior of the open-drain overtemperature shutdown 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 600µA supply current, and a lockup-protected I2C-compatible interface that make them ideal for wearable fitness and medical applications. This device is available in an 8-pin TDFN package and operates over the 0°C to +50°C temperature range.

Key Features
  • High Accuracy and Low-Voltage Operation Aids Designers in Meeting Error and Power Budgets
    • 0.1°C Accuracy (37°C to 39°C)
    • 16-Bit (0.00390625°C) Temperature Resolution
    • 2.7V to 3.3V Supply Voltage Range
  • One-Shot and Shutdown Modes Help Reduce Power Usage
  • 600µA (typ) Operating Supply Current
  • Digital Functions Make Integration Easier into Any System
    • Selectable Timeout Prevents Bus Lockup
    • Separate Open-Drain OS Output Operates as Interrupt or Comparator/Thermostat Output
MAX30205: Typical Application Circuit
MAX30205: Typical Application Circuit
Applications/Uses
  • Fitness
  • Medical
DataSheet
titleDownload file
MAX30205 Data SheetMAX30205.pdf
Parametrics
Part NumberSensor TypeAlarm OutputFunctionsInterfaceChannelsAccuracy
(±°C)
Parasite Pwr.Temp. Thresh.Temp. Resolution
(bits)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
See Notes
MAX30205LocalOvertClinical Accuracy Temperature Sensor2-Wire/I2C/SMBusOne0.1NoProgrammable16-55 to +150
0 to 70oC
TDFN-EP/8$1.60 @1k
Design kits & evaluation modules
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX30205MTA+ActiveTDFN-EP,;8 pin;9.6 mm²Special - See Data SheetLead Free
MAX30205MTA+TActiveTDFN-EP,;8 pin;9.6 mm²Special - See Data SheetLead Free
MAX30205.pdf MAX30205