HDC2080 Low Power Humidity and Temperature Digital Sensor | TI.com


Low Power Humidity and Temperature Digital Sensor



The HDC2080 device is an integrated humidity and temperature sensor that provides high accuracy measurements with very low power consumption in a small DFN package. The capacitive-based sensor includes new integrated digital features and a heating element to dissipate condensation and moisture. The HDC2080 digital features include programmable interrupt thresholds to provide alerts and system wake-ups without requiring a microcontroller to be continuously monitoring the system. Combined with programmable sampling intervals, a low power consumption, and a support for a 1.8-V supply voltage, the HDC2080 is designed for battery-operated systems.

The HDC2080 provides high accuracy measurement capability for a wide range of environmental monitoring and Internet of Things (IoT) applications such as smart thermostats and smart home assistants. For designs where printed-circuit board (PCB) area is critical, a smaller CSP package option is available thru the HDC2010 with complete software compatibility with the HDC2080.

For applications with strict power-budget restrictions, Auto Measurement Mode enables the HDC2080 to automatically initiate temperature and humidity measurements. This feature allows users to configure a microcontroller into deep sleep mode because the HDC2080 is no longer dependent upon the microcontroller to initiate a measurement.

Programable temperature and humidity thresholds in the HDC2080 allow the device to send a hardware interrupt to wake up the microcontroller when necessary. In addition, the power consumption of the HDC2080 is significantly reduced, which helps to minimize self-heating and improve measurement accuracy.

The HDC2080 is factory-calibrated to 0.2°C temperature accuracy and 2% relative humidity accuracy.


  • Relative Humidity Range: 0% to 100%
  • Humidity Accuracy: ±2% (Typical), ±3% (Maximum)
  • Temperature Accuracy: ±0.2°C (Typical), ±0.4°C (Maximum)
  • Sleep Mode Current: 50 nA (Typical), 100 nA (Maximum )
  • Average Supply Current (1 Measurement/Second)
    • 300 nA: RH% Only (11 Bit)
    • 550 nA: RH% (11 Bit) + Temperature (11 Bit)
  • Temperature Range:
    • Operating: –40°C to 85°C
    • Functional: –40°C to 125°C
  • Supply Voltage Range: 1.62 V to 3.6 V
  • Available Auto Measurement Mode
  • I2C Interface Compatibility

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Part number Order Relative humidity accuracy (Typ) (%RH) Relative humidity operating range (Typ) (%RH) Temperature accuracy (Typ) (°C) Supply voltage (Min) Supply voltage (Max) Average supply current (Typ) (uA) Interface Rating Operating temperature range (C) Package size: mm2:W x L (PKG)
HDC2080 Order now ±2     0 - 100     ±0.2     1.62     3.6     0.55 @ 1 sample / sec     I2C     Catalog     -40 to 85     See datasheet (WSON)    
HDC1080 Order now ±2     0 - 100     ±0.2     2.7     5.5     1.2 @ 1 sample/sec     I2C     Catalog     -40 to 125     See datasheet (WSON)    
HDC2010 Order now ±2     0 - 100     0.2     1.62     3.6     0.55 @ 1 sample/sec     I2C     Catalog     -40 to 85