HDC2080 Low Power Humidity and Temperature Digital Sensor | TI.com

HDC2080 (ACTIVE)

Low Power Humidity and Temperature Digital Sensor

Low Power Humidity and Temperature Digital Sensor - HDC2080
 

Description

The 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 new 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, a low power consumption, and a 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 thru the HDC2010 with complete software compatibility with the HDC2080.

For applications with strict power-budget restrictions, Auto Measurement Mode enables the HDC2080 to automatically initiate temperature and humidity measurements. 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.

Programable 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%
  • 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 )
  • Average Supply Current (1 measurement/second)
    • 300 nA: RH% Only (11 Bit)
    • 550 nA: RH% (11 Bit) + Temperature (11 Bit)
  • Temperature Range:
    • Operating: –40°C to 85°C
    • Functional: –40°C to 125°C
  • Supply Voltage Range: 1.62 V to 3.6 V
  • Available Auto Measurement Mode
  • I2C Interface Compatibility

All trademarks are the property of their respective owners.

View more

Parametrics Compare all products in Humidity Sensors

 
Relative Humidity Accuracy (Typ) (%RH)
Relative Humidity Operating Range (Typ) (%RH)
Temperature Accuracy (Typ) (°C)
Supply Voltage (Min)
Supply Voltage (Max)
Average Supply Current (Typ) (uA)
Interface
Rating
Operating Temperature Range (C)
Pin/Package
HDC2080 HDC1080 HDC2010
±2     ±2     ±2    
0 - 100     0 - 100     0 - 100    
±0.2     ±0.2     0.2    
1.62     2.7     1.62    
3.6     5.5     3.6    
0.55 @ 1 sample / sec     1.2 @ 1 sample/sec     0.55 @ 1 sample/sec    
I2C     I2C     I2C    
Catalog     Catalog     Catalog    
-40 to 85     -40 to 125     -40 to 85    
6WSON     6WSON