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.
Applications
Fitness
Medical
Features and Benefits
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