Overview
The HDC1010 is a digital humidity sensor with an integrated temperature sensor, designed by Texas Instruments. It offers high measurement accuracy for both humidity and temperature at very low power consumption. The sensor is housed in a tiny 2 mm x 1.6 mm Wafer Level Chip Scale Package (WLCSP), making it ideal for compact designs. The sensing element is placed on the bottom of the device, enhancing robustness against environmental contaminants like dirt and dust. The device is factory-calibrated, and calibration data is stored in on-chip non-volatile memory. It communicates via an I2C interface and is suitable for a wide range of applications, including HVAC systems, IoT devices, and medical equipment.
Key Specifications
| Parameter | Value |
|---|---|
| Relative Humidity Accuracy | ±2% (typical) |
| Temperature Accuracy | ±0.2°C (typical) for 5°C < TA < 60°C |
| Measurement Resolution | 8, 11, or 14 bits for humidity; 11 or 14 bits for temperature |
| Supply Voltage | 2.7 V to 5.5 V |
| Supply Current | 710 nA @ 1 sps, 11 bit RH measurement; 1.3 µA @ 1 sps, 11 bit RH and temperature measurement |
| Sleep Mode Current | 100 nA |
| Operating Temperature Range | -20°C to 85°C |
| I2C Interface | Compatible with I2C bus, operates as a slave device |
| Package | DSBGA (8-bump), 2.04 mm x 1.59 mm |
Key Features
- High accuracy for both humidity and temperature measurements.
- Low power consumption, making it suitable for battery or power harvesting applications.
- Ultra-compact WLCSP package simplifies board design.
- Integrated heater for testing the sensor and reducing condensation.
- Voltage supply monitoring to indicate low battery conditions.
- I2C interface with integrated spike-suppression filters and Schmitt triggers.
- Robust against environmental contaminants due to the placement of the sensing element.
Applications
- HVAC systems.
- IoT smart thermostats and room monitors.
- Refrigerators.
- Printers.
- White goods.
- Medical devices.
- Wireless sensors.
Q & A
- What is the typical relative humidity accuracy of the HDC1010?
The typical relative humidity accuracy of the HDC1010 is ±2%. - What is the temperature accuracy of the HDC1010?
The temperature accuracy of the HDC1010 is ±0.2°C (typical) for temperatures between 5°C and 60°C. - What are the available measurement resolutions for the HDC1010?
The HDC1010 offers 8, 11, or 14 bits for humidity measurements and 11 or 14 bits for temperature measurements. - What is the supply voltage range for the HDC1010?
The supply voltage range for the HDC1010 is 2.7 V to 5.5 V. - How much current does the HDC1010 consume in sleep mode?
The HDC1010 consumes 100 nA in sleep mode. - What is the operating temperature range of the HDC1010?
The operating temperature range of the HDC1010 is -20°C to 85°C. - How does the HDC1010 communicate with other devices?
The HDC1010 communicates via an I2C interface, operating as a slave device. - What is the package type and size of the HDC1010?
The HDC1010 is packaged in a DSBGA (8-bump) package with a size of 2.04 mm x 1.59 mm. - Does the HDC1010 have any built-in features for managing condensation?
Yes, the HDC1010 has an integrated heater that can be used to test the sensor and reduce condensation. - How does the HDC1010 monitor the supply voltage?
The HDC1010 monitors the supply voltage level and indicates when the voltage is less than 2.8V, useful for battery-powered systems.
