What Is the HDC1080? Low-Power Humidity/Temperature Sensor
The HDC1080 is Texas Instruments' low-power humidity and temperature sensor with an I²C interface. With good accuracy and low consumption it is used in battery, wearable and IoT devices. Its built-in heater is for clearing condensation on the sensor (not during measurement). It is in the same class as the AHT20/SHT31.
The HDC1080 is Texas Instruments' low-power humidity and temperature sensor with an I²C interface. With good accuracy and low consumption it is preferred in battery and wearable devices. For the concept, see what is a humidity sensor.
What is the HDC1080 used for?
Ambient humidity/temperature measurement, smart thermostats, HVAC, wearables and IoT nodes. It is a low-power I²C humidity+temperature solution in the same class as the AHT20 and SHT31.
Specifications
| Parameter | Value |
|---|---|
| Measurement | Relative humidity + temperature |
| Interface | I²C |
| Supply | 2.7 – 5.5 V |
| Highlight | Low power, integrated heater (condensation clearing) |
Watch out
The built-in heater is for clearing condensation/moisture on the humidity sensor; it is used when needed, not during measurement. Protect the sensor from dust/chemicals and direct water. In 3.3 V systems watch supply/pull-up compatibility.
Equivalents
- SHT31: high-accuracy humidity+temperature.
- AHT20: a cost-effective I²C humidity+temperature.
- BME280: adds pressure measurement.
Find it in our catalog
Use the HDC1080 search.