Analog Devices / Maxim Integrated MAX31889 I2C Temperature Sensor

Analog Devices Inc. MAX31889 I²C Temperature Sensor provides ±0.25°C accuracy from -20°C to +105°C and ±0.65°C accuracy from -40°C to +125°C. The MAX31889 operates from a 1.7V to 3.6V supply voltage and 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 MAX31889 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 0.8mm, 6-pin, µDFN package.

Features

High accuracy and precision
- ±0.25°C accuracy from -20°C to +105°C
- ±0.65°C accuracy from -40°C to +125°C
Low power for long battery life
- 7V to 3.6V operating voltage
- 68μA operating current during measurement
- 55μA standby current
Safety and compliance
- High and low-temperature alarms

I²C digital interface
- Configurable convert temperature input pin
- Configurable interrupt output pin
- 32-word FIFO for temperature data
- 4 I²C addresses available
- Unique ROM IDs allow the device to be NIST traceable
Small size
- 2mm x 2mm x 0.8mm, 6-pin μDFN

Applications

Precision temperature monitoring
RTD (Resistance Temperature Detector) sensor replacement
Internet of Things (IoT) Sensors

Analog Devices / Maxim Integrated MAX31889 I2C Temperature Sensor

Features

Applications

Block Diagram

Typical Application Diagram

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