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MAX31889 ±0.25°C Accurate I2C Temperature Sensor

MAX31889 ±0.25°C Accurate I2C Temperature Sensor

Maxim Integrated

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.

  • High accuracy
    • ±0.25°C accuracy from -20°C to +105°C
    • ±0.65°C accuracy from -40°C to +125°C
  • Long battery life
    • 1.7 V to 3.6 V operating voltage
    • 68 µA operating current during measurement
    • 0.55 µA standby current
  • Small size
    • 2 mm x 2 mm x 0.8 mm, 6-pin µDFN
  • 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 device to be NIST traceable
  • Internet of Things (IoT) sensors
  • Precision temperature monitoring
  • RTD replacement

MAX31889 ±0.25°C Accurate I2C Temperature Sensor

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
(MAX31889EVKIT+MAX32630FTHR) 0.2MAX31889EVSYS#(MAX31889EVKIT+MAX32630FTHR) 0.22 - Immediate
13 - Factory Stock