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Human Body Temperature Sensor

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

Product Details

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

Applications/Uses

  • Fitness
  • Medical
Parametric specs for Temperature Sensors
Sensor Type Clinical Grade
Local
Wearable
# Channels One
Interface 2-Wire/I2C/SMBus
Alarm Output Overt
Functions Clinical Accuracy Temperature Sensor
Accuracy (±°C) 0.1
Parasite Pwr. No
Temp. Thresh. Programmable
Temp. Resolution (bits) 16
Oper. Temp. (°C) 0 to +50
Package/Pins TDFN/8
Budgetary
Price (See Notes)
$1.68 @1k
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Simplified Block Diagram

MAX30205: Typical Application Circuit MAX30205: Typical Application Circuit Zoom icon

Technical Docs

Design & Development

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Description

The MAX30205 evaluation kit (EV kit) provides a convenient way to evaluate the MAX30205 human body temperature sensor. The sensor uses a high resolution, sigma-delta, analog-to-digital converter to accurately measure temperature and convert it to digital form. The kit includes a USB-to-I2C controller and GUI program to simplify evaluation.

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Features

  • Quick Evaluation of the MAX30205
  • USB Powered
  • Full Assembled and Tested
  • Windows® 7, 8, and 10-Compatible Software

Description

Maxim Integrated brings the convenience of remote health monitoring to your fingertips. The modular architecture allows for a variety of systems to be assembled quickly and easily within a couple of minutes. The system flexibility stems from the FeatherWing® form factor that provides a plug-and-play interface by adding or removing desired sensors, enabling or disabling a particular sensor, and the frequency data transmission to an online dashboard. The system is built on a Maxim Integrated low-power microcontroller to ensure minimum power consumption for designs on the go.

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Features

  • MAX32630FTHR Feather Board
    • MAX32630 Low-Power Microcontroller
    • MicroSD Card Connector
    • Mbed™ HDK Debug Interface
    • Bluetooth Compatible
  • MAX11301WING Feather Wing
    • 20 Configurable Mixed-Signal Ports
    • Analog Switch Between Adjacent PIXI® Ports
  • MAX30003WING Feather Wing
    • Clinical-Grade ECG AFE with High-Resolution Data Converter
    • Built-In Heart Rate Detection
  • MAX30101WING Feather Wing
    • High-Sensitivity Pulse Oximeter and Heart-Rate Sensor
  • MAX30205EVSYS
    • Human Body Temperature Sensor

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Support & Training

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Parameters

Parametric specs for Temperature Sensors
Sensor Type Clinical Grade
Local
Wearable
# Channels One
Interface 2-Wire/I2C/SMBus
Alarm Output Overt
Functions Clinical Accuracy Temperature Sensor
Accuracy (±°C) 0.1
Parasite Pwr. No
Temp. Thresh. Programmable
Temp. Resolution (bits) 16
Oper. Temp. (°C) 0 to +50
Package/Pins TDFN/8
Budgetary
Price (See Notes)
$1.68 @1k

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

Applications/Uses

  • Fitness
  • Medical

Description

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.

Simplified Block Diagram

MAX30205: Typical Application Circuit MAX30205: Typical Application Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal