Overview
The HDC1080 is a digital humidity sensor with an integrated temperature sensor, designed and manufactured by Texas Instruments. This device is renowned for its excellent measurement accuracy at very low power consumption, making it a low-cost and efficient solution for various applications. The humidity and temperature sensors are factory calibrated, ensuring high reliability and precision. The HDC1080 operates over a wide supply voltage range of 2.7 V to 5.5 V and features a small 3 mm × 3 mm device footprint, making it suitable for a wide range of common applications.
Key Specifications
| Specification | Value |
|---|---|
| Relative Humidity Accuracy | ±2% (typical) |
| Temperature Accuracy | ±0.2°C (typical) |
| Measurement Resolution | 14 bits (humidity), 11 or 14 bits (temperature) |
| Sleep Mode Current | 100 nA |
| Average Supply Current | 710 nA @ 1sps, 11 bit RH Measurement; 1.3 µA @ 1sps, 11 bit RH and Temperature Measurement |
| Supply Voltage | 2.7 V to 5.5 V |
| Device Footprint | 3 mm × 3 mm |
| Interface | I2C |
| Operating Temperature Range | -40°C to 125°C |
Key Features
- Excellent measurement accuracy at very low power consumption
- Factory-calibrated humidity and temperature sensors
- Excellent stability at high humidity
- Low power consumption: 100 nA in sleep mode, 710 nA @ 1sps for 11 bit RH measurement, and 1.3 µA @ 1sps for 11 bit RH and temperature measurement
- Wide supply voltage range: 2.7 V to 5.5 V
- Small device footprint: 3 mm × 3 mm
- I2C interface for communication
Applications
- HVAC systems
- Smart thermostats and room monitors
- White goods
- Printers
- Handheld meters
- Medical devices
- Wireless sensors
Q & A
- What is the typical relative humidity accuracy of the HDC1080?
The typical relative humidity accuracy of the HDC1080 is ±2%
- What is the temperature accuracy of the HDC1080?
The temperature accuracy of the HDC1080 is ±0.2°C (typical)
- What is the measurement resolution of the HDC1080?
The HDC1080 has a measurement resolution of 14 bits for humidity and 11 or 14 bits for temperature
- What is the sleep mode current consumption of the HDC1080?
The sleep mode current consumption of the HDC1080 is 100 nA
- What is the average supply current of the HDC1080 during measurements?
The average supply current is 710 nA @ 1sps for 11 bit RH measurement and 1.3 µA @ 1sps for 11 bit RH and temperature measurement
- What is the supply voltage range of the HDC1080?
The supply voltage range of the HDC1080 is 2.7 V to 5.5 V
- What is the device footprint of the HDC1080?
The device footprint of the HDC1080 is 3 mm × 3 mm
- What interface does the HDC1080 use for communication?
The HDC1080 uses an I2C interface for communication
- What are some common applications of the HDC1080?
The HDC1080 is commonly used in HVAC systems, smart thermostats, white goods, printers, handheld meters, medical devices, and wireless sensors
- Is the HDC1080 factory calibrated?
Yes, the humidity and temperature sensors of the HDC1080 are factory calibrated
