MAX30205 Datasheet, PDF (1/15 Pages) Maxim Integrated Products – Human Body Temperature Sensor

MAX30205
Human Body Temperature Sensor
General 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 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
Benefits and 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
Ordering Information appears at end of data sheet.
Typical Application Circuit
+2.7V TO +3.3V
4.7kΩ
TO I²C
MASTER
SDA
VDD
SCL _MAX30205 A0
OS
A1
GND
A2
0.1µF
19-8505; Rev 0; 3/16