MAX31889

±0.25°C Accurate I2C Temperature Sensor

High-Precision I2C Temperature Sensor on a Battery Power Budget


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说明

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.

MAX31889: Simplified Block Diagram MAX31889: Simplified Block Diagram 放大+

关键特性

  • 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

应用

  • 物联网(IoT)传感器
  • null
  • null

请查看具体的参数规格 Temperature Sensors (113)


Part NumberSensor TypeFunctionsInterfaceAccuracy
(±°C)
Parasite Pwr.Multi DroppableOper. Temp.
(°C)
Package/PinsBudgetary
Price
See Notes
MAX31889 NEW!LocalHigh Precision Temperature SensorI2C0.25NoYes-40 to +125
UDFN/6
$1.65 @1k

Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

MAX31889EVSYS: Evaluation System for the MAX31889
申请可靠性报告: MAX31889 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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