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HDC2080 Low Power Humidity and Temperature Digital Sensor

Texas Instruments' HDC2080 provides high accuracy measurements with very low power consumption in a small DFN package

Image of Texas Instruments' HDC2080 Low Power Humidity and Temperature Digital SensorTexas Instruments' 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 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, low power consumption, and 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 through the HDC2010 with complete software compatibility with the HDC2080.

In applications with strict power-budget restrictions, auto measurement mode enables the HDC2080 to initiate temperature and humidity measurements automatically. 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.

Programmable 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.

Features
  • Relative humidity range: 0% to 100%
  • Average supply current (1 measurement/second):
    • 300 nA: RH% only (11 bit)
    • 550 nA: RH% (11 bit) + temperature (11 bit)
  • 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)
  • Supply voltage range: 1.62 V to 3.6 V
  • Temperature range:
    • Operating: -40°C to +85°C
    • Functional: -40°C to +125°C
  • Available auto-measurement mode
  • I2C interface compatibility
Applications
  • Smart thermostats
  • Smart home assistants
  • Washer/dryers
  • HVAC
  • Systems inkjet printers

HDC2080 Low Power Humidity and Temperature Digital Sensor

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
HUMIDITY SENSORHDC2080DMBTHUMIDITY SENSOR314 - Immediate
10001 - Factory Stock
View Details

Associated Parts

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
LOW POWER HUMIDITY AND TEMPERATUHDC2010YPATLOW POWER HUMIDITY AND TEMPERATU2640 - ImmediateView Details
HDC2010 LOW POWER HUMIDITY AND THDC2010EVMHDC2010 LOW POWER HUMIDITY AND T9 - Immediate
41 - Factory Stock
View Details
GEN 2 HUMIDITY SENSORHDC2010YPARGEN 2 HUMIDITY SENSOR4870 - ImmediateView Details
Published: 2018-07-20