Product Details

describe:

The HDC2022 is an integrated relative humidity and temperature sensor with a factory installed PTFE membrane cap over the opening of the relative AO4442 humidity sensor. The lid is a hydrophobic microporous PTFE foil that is dust and water resistant according to IP67 specifications. The lid is designed to adhere to the package for its entire lifetime while maintaining the same response time as the sensor without the membrane. The lid has a filtration efficiency of 99.99% down to a particle size of 100 nm.

The device is backward compatible with the HDC2080 and provides high accuracy measurements at very low power consumption in a small DFN package. Capacitive-based sensors include new integrated digital functions and a heating element to dissipate condensation and moisture. Digital features include programmable interrupt thresholds to provide alerts and system wakeups without the need for a microcontroller to continuously monitor the system. Combined with programmable sampling interval, low power consumption and 1.8V supply voltage support, this product is designed for ultra-low power battery powered systems.

characteristic:

Factory-installed IP67-rated water and dust cover

●Relative humidity measurement range: 0% to 100%

●Temperature measurement range: –40°C to 125°C

●Humidity accuracy: ±2% (typical), ±3% (maximum)

●Temperature accuracy: ±0.2°C (typ.), ±0.4°C (max.)

●Supply voltage range: 1.62 V to 3.6 V

●I 2 C interface compatibility

50 nA sleep mode current

550 nA average supply current (11-bit accuracy option, 1 measurement/sec)

●Continuous conversion or one-shot measurement mode

●Backward compatible with HDC2080

parameter:

Relative Humidity Accuracy (Typ) (%RH): ±2

Temperature Accuracy (Typical) (°C): ±0.2

Relative Humidity Operating Range (Typ) (%RH) : 0 - 100

Supply voltage (min): 1.62

Supply voltage (max): 3.6

Average Supply Current (Typ) (uA): 0.55 @ 1 sample/sec

Operating temperature range (°C): -40 to 125

Interface type: I2C

Package Type: Filter Cover