±0.25°C Accurate IC Temperature Sensor

The MAX31889 operates from a 1.7V to 3.6V supply voltage, and 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. The MAX31889 has 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 converison, 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.

Applications

* Internet of Things (IoT) Sensors * Precision Temperature Monitoring * RTD Replacement

* 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

* 1.7V to 3.6V Operating Voltage * 68µA Operating Current During Measurement * 0.55µA Standby Current

* Small Size

* 2mm x 2mm x 0.8mm, 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—More Addresses Available by Request

* Unique ROM IDs Allow Device to Be NIST Traceable