MAX31889 ±0.25°C Accurate I2C Temperature Sensor

Maxim Integrated's MAX31889 high-precision I2C temperature sensor on a battery power budget

Maxim Integrated's MAX31889 is a low-power, high-accuracy digital temperature sensor with ±0.25°C accuracy from -20°C to +105°C and ±0.65°C accuracy from -40°C to +125°C which operates from a 1.7 V to 3.6 V supply voltage. The MAX31889 features a 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 MAX31889 includes a 32-word FIFO for the temperature data and includes high and low threshold digital temperature alarms. The device is available in a 2 mm x 2 mm x 0.8 mm, 6-pin, µDFN package.