Body Temperature Measurement Solutions

Design a smart body-worn wearable that offers real-time temperature monitoring of the skin by leveraging Analog Devices’ broad portfolio of sensor and signal-conditioning technology solutions for precise battery-powered health devices.

Value and Benefits

Our temperature sensing solutions are highly accurate across the full body temperature range. Small size options allow temperature to be sensed in the smallest of spaces. Low power consumption per conversion ensures system battery life is maximized.

Captures accurate, real-time skin temperature

Maximizes battery life

Enables temperature sensing in the smallest spaces

MAX30208

±0.1°C Accurate, I²C Digital Temperature Sensor X +

MAX30208

The MAX30208 operates from a 1.7V to 3.6V supply voltage, and is a low-power, high-accuracy digital temperature sensor with ±0.1°C accuracy from +30°C to +50°C and ±0.15°C accuracy from 0°C to +70° C. The MAX30208 has 16-bit resolution (0.005°C).

The device uses a standard I²C serial interface to communicate with a host controller. Two GPIO pins are available. GPIO1 can be configured to trigger a temperature conversion, while GPIO0 can be configured to generate an interrupt for selectable status bits.

The MAX30208 includes a 32-word FIFO for the temperature data and also includes high and low threshold digital temperature alarms. The device is available in a 2mm x 2mm x 0.75mm, 10-pin Thin LGA package.

Applications

Internet of Things (IoT) Sensors
Medical Thermometers
Wearable Body Temperature Monitors

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Applications

Consumer Technology Solutions

Hearable and Wearable Solutions
Wearable Vital Signs Monitoring Solutions
Extended Reality (XR) Solution for Edge Devices

Healthcare Solutions

Activity Tracking and Fall Detection Solutions
Respiration Rate Measurement Solutions
Electrocardiogram (ECG) Measurement Solutions
Wearable Health Monitor Solutions
Continuous Glucose Monitor (CGM) Solutions
Diabetes Monitoring and Diagnostic Solutions
Body Temperature Measurement Solutions

MAX30207

±0.1°C Accurate, 1-Wire^® Digital Temperature Sensor X +

MAX30207

The MAX30207 is a low-power, high-accuracy digital temperature sensor with ±0.1°C accuracy from +30°C to +50°C and ±0.3°C accuracy from 0°C to +70°C. It provides a 16-bit resolution (0.005°C).

The 2mm x 2mm x 0.75mm package design has extremely low thermal mass and can be mounted on a flex PCB with only two conducting traces, allowing for minimal thermal conduction to the system PCB and accurate temperature measurements.

Data is transferred serially through the 1-Wire^® protocol, which requires only one data line and a ground reference for communication. Power to the device is also provided using the same data line used for communication using parasite power circuitry inside the device. Each MAX30207 has its own unique 64-bit registration number factory programmed into the chip. This unique 64-bit registration number acts as the node address in a multidrop 1-Wire^® network. In multidrop networks, optional GPIO pins may be used as address bits to identify each device's physical location.

Applications

Internet of Things (IoT) Sensors
Medical Thermometers
Wearable Body Temperature Monitors

View Detailed Information View Pricing

Applications

Healthcare Solutions

Activity Tracking and Fall Detection Solutions
Respiration Rate Measurement Solutions
Electrocardiogram (ECG) Measurement Solutions
Wearable Health Monitor Solutions
Continuous Glucose Monitor (CGM) Solutions
Diabetes Monitoring and Diagnostic Solutions
Oxygen Saturation (SpO2) Measurement Solutions
Body Temperature Measurement Solutions

ADT7422

±0.1°C Accuracy, 16-Bit, Digital I²C Temperature Sensor for VSM Applications X +

ADT7422

The ADT7422 is a high accuracy, digital I²C temperature sensor designed to meet the clinical thermometry specification of the ASTM E1112 standards when soldered onto the final printed circuit board (PCB).

The ADT7422 contains an internal band gap reference, a temperature sensor, and a precision analog-to-digital converter (ADC). The ADT7422 provides a 16-bit temperature result with a resolution of 0.0078°C and an accuracy of up to ±0.1°C across the temperature range of 25°C to 50°C without the need for calibration after the PCB soldering process.

Operating at 3.0 V, the average supply current is typically 210 μA. The ADT7422 has a shutdown mode that powers down the device and offers a shutdown current of typically 2.0 μA at 3.0 V. The ADT7422 is rated for operation over the −40°C to +125°C temperature range.

Pin A0 and Pin A1 are available for address selection and provide four possible I²C addresses for the ADT7422. The CT pin is an open-drain output that becomes active when the temperature exceeds a programmable critical temperature limit. The INT pin is also an open-drain output that becomes active when the temperature exceeds a programmable limit. The INT pin and CT pin can operate in comparator and interrupt event modes.

Product Highlights

No calibration or correction required by the user.
Low power consumption.
Long-term stability and reliability.
High accuracy for industrial, instrumentation, and medical applications.

Applications

Vital signs monitoring (VSM)
Medical equipment
Resistance temperature detector (RTD) and thermistor replacement
Food transportation and storage
Thermocouple cold junction compensation
Environmental monitoring and heating, ventilation, and air conditioning (HVAC)
Laser diode temperature control

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Applications

Healthcare Solutions

Therapy Device Solutions for Healthcare
Activity Tracking and Fall Detection Solutions
Respiration Rate Measurement Solutions
Electrocardiogram (ECG) Measurement Solutions
Oxygen Saturation (SpO2) Measurement Solutions
Point of Care (PoC) Diagnostic Solutions
In Vitro Diagnostic Solutions
Wearable Health Monitor Solutions
Body Temperature Measurement Solutions

Aerospace and Defense Systems

Military Communication Solutions

Instrumentation and Measurement Solutions

Precision Measurement Solutions
Data Acquisition Solutions
Communications Test Equipment Solutions
Electronic Test and Measurement Solutions
Analytical Instruments
Battery Formation and Testing
Automated Test Equipment

Sensor Interface Solutions

ADT7320

±0.25°C Accurate, 16-Bit Digital SPI Temperature Sensor X +

ADT7320

The ADT7320 is a high accuracy digital temperature sensor that offers breakthrough performance over a wide industrial temperature range, housed in a 4 mm × 4 mm LFCSP package. It contains an internal band gap reference, a temperature sensor, and a 16-bit analog-to-digital converter (ADC) to monitor and digitize the temperature to a resolution of 0.0078°C. The ADC resolution, by default, is set to 13 bits (0.0625°C). The ADC resolution is a user programmable mode that can be changed through the serial interface.

The ADT7320 is guaranteed to operate over supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V, the average supply current is typically 210 μA. The ADT7320 has a shutdown mode that powers down the device and offers a shutdown current of typically 2.0 μA at 3.3 V. The ADT7320 is rated for operation over the −40°C to +150°C temperature range.

The CT pin is an open-drain output that becomes active when the temperature exceeds a programmable critical temperature limit. The INT pin is also an open-drain output that becomes active when the temperature exceeds a programmable limit. The INT pin and CT pin can operate in either comparator or interrupt mode.

PRODUCT HIGHLIGHTS

Ease of use, no calibration or correction required by the user.
Low power consumption.
Excellent long term stability and reliability.
High accuracy for industrial, instrumentation, and medical applications.
Packaged in a 16-lead RoHS-compliant, 4 mm x 4 mm LFCSP package.

APPLICATIONS

RTD and thermistor replacement
Thermocouple cold junction compensation
Medical equipment
Industrial controls and test
Food transportation and storage
Environmental monitoring and HVAC
Laser diode temperature controls

View Detailed Information View Pricing

Applications

Industrial Automation

Position Encoder Systems
Programmable Logic Controllers (PLC) and Distributed Control Systems (DCS)
Field Instrument Systems

Intelligent Building Solutions

Building Automation Controllers and Network Solutions
Smart Building Automation Systems
Smart Building Sustainability Solutions
Environmental Building Monitoring Solutions
Smart Building Utilities Solutions
HVAC System Technology

Healthcare Solutions

In Vitro Diagnostic Solutions
Therapy Device Solutions for Healthcare
Computed Tomography Solutions
Vital Signs Monitoring Solutions
Electrocardiogram (ECG) Measurement Solutions
Electroencephalogram (EEG) Measurement Solutions
Non-Invasive Blood Pressure (NIBP) Solutions
Respiration Rate Measurement Solutions
Oxygen Saturation (SpO2) Measurement Solutions
Body Composition, Hydration, and Bioimpedance Analysis Solutions
Insulin Pump Solutions
Activity Tracking and Fall Detection Solutions
Wearable Health Monitor Solutions
Body Temperature Measurement Solutions

Instrumentation and Measurement Solutions

Analytical Instruments

Sensor Interface Solutions

Temperature Sensing Solutions

ADT7420

±0.25°C Accurate, 16-Bit Digital I²C Temperature Sensor X +

ADT7420

The ADT7420 is a high accuracy digital temperature sensor offering breakthrough performance over a wide industrial range, housed in a 4 mm × 4 mm LFCSP package. It contains an internal band gap reference, a temperature sensor, and a 16-bit ADC to monitor and digitize the temperature to 0.0078°C resolution. The ADC resolution, by default, is set to 13 bits (0.0625°C). The ADC resolution is a user programmable mode that can be changed through the serial interface.

The ADT7420 is guaranteed to operate over supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V, the average supply current is typically 210 μA. The ADT7420 has a shutdown mode that powers down the device and offers a shutdown current of typically 2.0 μA at 3.3 V. The ADT7420 is rated for operation over the −40°C to +150°C temperature range.

Pin A0 and Pin A1 are available for address selection, giving the ADT7420 four possible I²C addresses. The CT pin is an open-drain output that becomes active when the temperature exceeds a programmable critical temperature limit. The INT pin is also an open-drain output that becomes active when the temperature exceeds a programmable limit. The INT pin and CT pin can operate in comparator and interrupt event modes.

Product Highlights

Ease of use, no calibration or correction required by the user.
Low power consumption.
Excellent long-term stability and reliability.
High accuracy for industrial, instrumentation, and medical applications.
Packaged in a 16-lead, 4 mm × 4 mm LFCSP RoHS-compliant package.

Applications

RTD and thermistor replacement
Thermocouple cold junction compensation
Medical equipment
Industrial control and test
Food transportation and storage
Environmental monitoring and HVAC
Laser diode temperature control

View Detailed Information View Pricing

Applications

Energy Solutions

Smart Meter Technology

Industrial Automation

Smart Factory IO - Link Sensor Actuator Solutions
Programmable Logic Controllers (PLC) and Distributed Control Systems (DCS)
Predictive Maintenance Solutions
Field Instrument Systems

Intelligent Building Solutions

Environmental Building Monitoring Solutions
Building Automation Controllers and Network Solutions

Healthcare Solutions

Point of Care (PoC) Diagnostic Solutions
In Vitro Diagnostic Solutions
Therapy Device Solutions for Healthcare
Computed Tomography Solutions
Vital Signs Monitoring Solutions
Electrocardiogram (ECG) Measurement Solutions
Non-Invasive Blood Pressure (NIBP) Solutions
Respiration Rate Measurement Solutions
Oxygen Saturation (SpO2) Measurement Solutions
Body Composition, Hydration, and Bioimpedance Analysis Solutions
Insulin Pump Solutions
Activity Tracking and Fall Detection Solutions
Wearable Health Monitor Solutions
Body Temperature Measurement Solutions

Instrumentation and Measurement Solutions

DC Sources and Power Supply Solutions
Precision Measurement Solutions
Analytical Instruments

Sensor Interface Solutions

Temperature Sensing Solutions

Evaluation Boards

MAX30208EVSYS

Evaluation System for the MAX30208 X +

MAX30208EVSYS

The MAX30208 evaluation system (EV system) provides a single platform to evaluate the MAX30208, a temperature sensor with ±0.1°C accuracy. The EV system consists of two boards connected through headers, a MAX32630FTHR microcontroller board, and the MAX30208 interface board. Also included with the EV system is a flex PCB that holds the MAX30208 IC. The MAX32630FTHR contains the firmware necessary to use the PC GUI program and also provides power to the MAX30208 interface board. The MAX30208 interface board ships with jumpers preinstalled to allow quick evaluation of the MAX30208.

Applications

Healthcare patches
Human Body Digital Thermometers
Sports Watches
Wearable Thermometers

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Applicable Parts

MAX30208

±0.1°C Accurate, I²C Digital Temperature Sensor

Applications

Consumer Technology Solutions

Hearable and Wearable Solutions

Healthcare Solutions

Activity Tracking and Fall Detection Solutions
Respiration Rate Measurement Solutions
Electrocardiogram (ECG) Measurement Solutions
Wearable Health Monitor Solutions
Continuous Glucose Monitor (CGM) Solutions
Diabetes Monitoring and Diagnostic Solutions
Body Temperature Measurement Solutions

MAX30207EVSYS

Evaluation System for the MAX30207 X +

MAX30207EVSYS

The MAX30207 evaluation (EV) system provides a single platform to evaluate the MAX30207, a +/-0.1°C accurate temperature sensor. The EV system consists of two boards connected through headers, a MAX32630FTHR microcontroller board, and the MAX30207_INTERFACE_ EVKIT board. The EV system also includes a MAX30207_ SENSOR_FLEX_EVKIT flex module that holds the MAX30207 IC. The MAX32630FTHR contains the firmware necessary to use the PC GUI program and provides power to the MAX30207 interface board. The MAX30207 interface board ships with jumpers preinstalled to allow quick evaluation of the MAX30207.

Applications

Internet of Things (IoT) Sensors
Medical Thermometers
Wearable Body Temperature Monitors

View Detailed Information View Pricing

Applicable Parts

MAX30207

±0.1°C Accurate, 1-Wire^® Digital Temperature Sensor

Applications

Healthcare Solutions

Activity Tracking and Fall Detection Solutions
Respiration Rate Measurement Solutions
Electrocardiogram (ECG) Measurement Solutions
Wearable Health Monitor Solutions
Continuous Glucose Monitor (CGM) Solutions
Diabetes Monitoring and Diagnostic Solutions
Oxygen Saturation (SpO2) Measurement Solutions
Body Temperature Measurement Solutions

EV-TempSense-ARDZ

±0.1°C, ±0.25°C & ±0.5°C Accurate Temperature Sensor Evaluation Platform X +

EV-TempSense-ARDZ

The EVAL-TempSense-ARDZ is an evaluation board kit containing three evaluation boards that allows easy evaluation of the functionality of ADIs precision digital temperature sensors. Interface to the sensors can be either directly on the Arduino shield or by ribbon cable connected to external sensors. Consult the ADT7410, ADT7420, ADT7422, ADT7310, and ADT7320 data sheets in conjunction with the user guide when using the EVAL-TempSense-ARDZ with the Arduino integrated development environment (IDE) or the Analysis Control Evaluation (ACE) Software.

The ADT7410, ADT7420, ADT7422, ADT7310, and ADT7320 are high accuracy digital temperature sensors offering breakthrough performance over a wide industrial temperature range. The devices contain an internal band gap reference, a temperature sensor, and a 16-bit analog-to-digital converter (ADC) to monitor and digitize the temperature to 0.0078°C resolution. The devices are available in I²C or SPI versions.

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Applicable Parts

ADT7422

±0.1°C Accuracy, 16-Bit, Digital I²C Temperature Sensor for VSM Applications

ADT7410

±0.5°C Accurate, 16-Bit Digital I²C Temperature Sensor

ADT7420

±0.25°C Accurate, 16-Bit Digital I²C Temperature Sensor

ADT7310

±0.5°C Accurate, 16-Bit Digital SPI Temperature Sensor

ADT7320

±0.25°C Accurate, 16-Bit Digital SPI Temperature Sensor

Applications

Industrial Automation

Position Encoder Systems
Smart Factory IO - Link Sensor Actuator Solutions
Field Instrument Systems
Predictive Maintenance Solutions
Programmable Logic Controllers (PLC) and Distributed Control Systems (DCS)

Consumer Technology Solutions

Home Theater and Gaming Solutions

Healthcare Solutions

Activity Tracking and Fall Detection Solutions
Respiration Rate Measurement Solutions
Electrocardiogram (ECG) Measurement Solutions
Wearable Health Monitor Solutions
Oxygen Saturation (SpO2) Measurement Solutions
Point of Care (PoC) Diagnostic Solutions
In Vitro Diagnostic Solutions
Computed Tomography Solutions
Therapy Device Solutions for Healthcare
Body Temperature Measurement Solutions

Intelligent Building Solutions

Building Automation Controllers and Network Solutions
Smart Building Automation Systems
Smart Building Utilities Solutions
HVAC System Technology
Smart Building Sustainability Solutions
Environmental Building Monitoring Solutions

Aerospace and Defense Systems

Military Communication Solutions

Instrumentation and Measurement Solutions

Analytical Instruments
Precision Measurement Solutions
DC Sources and Power Supply Solutions

Reference Designs

MAXREFDES104

Health Sensor Platform 3.0 X +

MAXREFDES104

The MAXREFDES104# is a unique evaluation and development platform in a wearable form factor that demonstrates the functions of a wide range of Maxim’s products for health-sensing applications. This third-generation health sensor platform (an advancement of the MAXREFDES101# Health Sensor Platform 2.0) integrates a two-in-one PPG + ECG analog-front-end (AFE) sensor (MAX86176), a human body temperature sensor (MAX30208), a microcontroller (MAX32666), a power-management IC (MAX20360), and a 3-axis accelerometer. The complete platform includes a 3D-printed enclosure and a biometric algorithm hub with an embedded heart-rate, oxygen saturation and ECG algorithms (MAX32674). Algorithm output and raw data can be streamed through Bluetooth™ to a PC GUI for demonstration, evaluation, and customized development.

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Applicable Parts

MAX86176

Ultra-Low-Power, Optical PPG and Single-Lead ECG AFE

MAX30208

±0.1°C Accurate, I²C Digital Temperature Sensor

MAX32666

Low-Power ARM Cortex-M4 with FPU-Based Microcontroller with Bluetooth 5 for Wearables

MAX20360

PMIC with Ultra-Low I_Q Regulators, Charger, Fuel Gauge, and Haptic Driver for Small Li+ System

Applications

Healthcare Solutions

MAXREFDES282

Health Patch Platform: Chest-Based SpO2, ECG, Heart Rate, Respiration Rate, and Temperature Measurement X +

MAXREFDES282

This reference design provides information about preparing and operating the MAXREFDES282: Health Patch Platform. This platform uses high-sensitivity Photoplethysmogram (PPG), Electrocardiogram (ECG), Bio Impedance (BioZ) and temperature biosensors, and two power-management IC (PMIC) from Maxim Integrated^®, now part of Analog Devices^®, in a chest-patch design to capture biometric signals important for healthcare. The platform integrates algorithms to calculate those vital signs including heart rate (HR), respiration rate (RR), and blood oxygenation (SpO₂) based on the biosensors measurement data. The vital signs data can be displayed on a Windows^® GUI in real-time and logged to a local file for further study. This is a demonstration only reference design. The schematic, layout, and manufacturing files are not available.

Wearable and supporting documentation are available under NDA only.*

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Applicable Parts

MAX86178

Ultra-Low-Power, Clinical-Grade Vital-Sign AFE

MAX30208

±0.1°C Accurate, I²C Digital Temperature Sensor

MAX20335

PMIC with Ultra-Low I_Q Voltage Regulators and Battery Chargers for Small Lithium Ion Systems

MAX20343

Ultra-Low Quiescent Current, Low Noise 3.5W Buck-Boost Regulator

Applications

Healthcare Solutions

Electrocardiogram (ECG) Measurement Solutions
Body Temperature Measurement Solutions
Oxygen Saturation (SpO2) Measurement Solutions
Wearable Health Monitor Solutions
Respiration Rate Measurement Solutions

Key Resources

Technical Articles

Redesigning RTD-Based Temperature Sensors for the Smart Factory Age

Design Tools

ADuCM36x Multi-Functional Tool

PulSAR® Analog-to-Digital Converter Evaluation Kit

PulSAR® Analog-To-Digital Converter Evaluation Kit

Simulation Models

ADI provides simulation models for RF, Linear, Converters, Power Management and other products for circuit and board level simulation needs.

Go to Simulation Models

Technical Articles

Oct 27, 2023

Rigid-Flex Circuit Design Considerations for Wearable Temperature Sensor Applications

More Details

Technical Articles

Feb 23, 2023

Redesigning RTD-Based Temperature Sensors for the Smart Factory Age

More Details

Video

Feb 8, 2023

02:38

Body Vitals on Wearables: Your Body, Talking to You

More Details

Analog Dialogue

May 6, 2022

What Are the Best Applications for IoT in the New World of IC Power Management?

More Details

Video

Oct 1, 2018

06:23

ADI Demo Series, Topic1: Using the Diamond Plot Tool

More Details

Files and Downloads

PDF

Technologies for High Performance Portable Healthcare Devices redirec icon for pdf link

598.17 K

PDF

ADAS1000 5-Electrode ECG AFE redirec icon for pdf link

595.84 K

PDF

UG-1091: How to Set Up and Use the ADuCM3027/ADuCM3029 redirec icon for pdf link

1.67 M

PDF

ADP5350: Advanced Battery Management PMIC with Inductive Boost LED and Three LDO Regulators Data Sheet redirec icon for pdf link

1.68 M

PDF

The Building Blocks of the IoT redirec icon for pdf link

1.83 M

PDF

AN-1452: ADuCM3027/ADuCM3029 Flash EEPROM Emulation redirec icon for pdf link

151.88 K

PDF

Silent Switcher Technology redirec icon for pdf link

1.74 M

PDF

Understanding Silent Switcher Technology: High Efficiency, Low EMI eBook redirec icon for pdf link

7.75 M

PDF

CN0407: Ultrahigh Sensitivity Femtoampere Measurement Platform redirec icon for pdf link

548.59 K

PDF

Precision Products and Signal Chain Solutions: Selection Guide 2019 redirec icon for pdf link

13.38 M

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Body Temperature Measurement Solutions

Value and Benefits

Featured Products

MAX30208

Applications

Consumer Technology Solutions

Healthcare Solutions

MAX30207

Applications

Healthcare Solutions

ADT7422

Applications

Healthcare Solutions

Aerospace and Defense Systems

Instrumentation and Measurement Solutions

Sensor Interface Solutions

ADT7320

Applications

Industrial Automation

Intelligent Building Solutions

Healthcare Solutions

Instrumentation and Measurement Solutions

Sensor Interface Solutions

ADT7420

Applications

Energy Solutions

Industrial Automation

Intelligent Building Solutions

Healthcare Solutions

Instrumentation and Measurement Solutions

Sensor Interface Solutions

Evaluation Boards

MAX30208EVSYS

Applicable Parts

Applications

Consumer Technology Solutions

Healthcare Solutions

MAX30207EVSYS

Applicable Parts

Applications

Healthcare Solutions

EV-TempSense-ARDZ

Applicable Parts

Applications

Industrial Automation

Consumer Technology Solutions

Healthcare Solutions

Intelligent Building Solutions

Aerospace and Defense Systems

Instrumentation and Measurement Solutions

Reference Designs

MAXREFDES104

Applicable Parts

Applications

Healthcare Solutions

MAXREFDES282

Applicable Parts

Applications

Healthcare Solutions

Key Resources

Technical Articles

Design Tools

Simulation Models

Training and Support

Files and Downloads

ADI Support

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