Overview
The HDC1080DMBT from Texas Instruments is a digital humidity sensor with an integrated temperature sensor, designed to provide high accuracy measurements at very low power consumption. This sensor is factory calibrated and operates over a wide supply voltage range of 2.7 V to 5.5 V, making it a versatile and cost-effective solution for various applications. The HDC1080DMBT features a small 3 mm x 3 mm device footprint and uses an I2C interface for communication.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Relative Humidity Accuracy | ±2% | |
| Temperature Accuracy | ±0.2°C | |
| Measurement Resolution | 8, 11, or 14 bits (humidity), 11 or 14 bits (temperature) | |
| Sleep Mode Current | 100 nA | |
| Average Supply Current | 710 nA @ 1sps (11 bit RH), 1.3 µA @ 1sps (11 bit RH and temperature) | |
| Supply Voltage | 2.7 V to 5.5 V | V |
| Device Footprint | 3 mm x 3 mm | |
| Interface | I2C | |
| Ambient Operating Temperature (Humidity Sensor) | -20°C to 70°C | °C |
| Ambient Operating Temperature (Temperature Sensor) | -40°C to 125°C | °C |
Key Features
- Low power consumption with 100 nA sleep mode current and minimal self-heating during measurements.
- High accuracy measurements: ±2% relative humidity and ±0.2°C temperature accuracy.
- Integrated heater for testing the sensor and reducing accumulated offset at high humidity conditions.
- Voltage supply monitoring to indicate when the supply voltage is less than 2.8 V.
- Small 3 mm x 3 mm device footprint.
- I2C interface for easy communication.
- Factory-calibrated humidity and temperature sensors.
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 HDC1080DMBT?
The typical relative humidity accuracy is ±2%. - What is the temperature accuracy of the HDC1080DMBT?
The temperature accuracy is ±0.2°C. - What are the available measurement resolutions for the HDC1080DMBT?
The measurement resolutions are 8, 11, or 14 bits for humidity and 11 or 14 bits for temperature. - What is the sleep mode current consumption of the HDC1080DMBT?
The sleep mode current consumption is 100 nA. - What is the supply voltage range for the HDC1080DMBT?
The supply voltage range is 2.7 V to 5.5 V. - How does the HDC1080DMBT communicate with other devices?
The HDC1080DMBT uses an I2C interface for communication. - What is the footprint of the HDC1080DMBT device?
The device footprint is 3 mm x 3 mm. - Are the humidity and temperature sensors of the HDC1080DMBT factory calibrated?
Yes, the humidity and temperature sensors are factory calibrated. - What are some common applications of the HDC1080DMBT?
Common applications include HVAC systems, smart thermostats, white goods, printers, handheld meters, medical devices, and wireless sensors. - How does the HDC1080DMBT handle low supply voltage conditions?
The HDC1080DMBT monitors the supply voltage level and indicates when the voltage is less than 2.8 V.
