Digital humidity and temperature sensor combines a MEMS capacitive humidity element, an on-chip temperature sensor, and calibrated digital output. The device operates from a 2.2 V to 5.5 V supply and communicates over a standard I2C interface at address 0x38. It measures 0% to 100% RH with typical ±2% RH accuracy and -40 °C to 85 °C with typical ±0.3 °C temperature accuracy. The two-row SMD package has a 3 mm by 3 mm footprint and 1.0 mm height for reflow soldering.
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| Sensor Type | Humidity and temperature |
| Output Interface | I2C |
| Supply Voltage | 2.2 to 5.5V |
| Humidity Measurement Range | 0 to 100%RH |
| Humidity Accuracy | ±2 typical at 25 °C%RH |
| Humidity Resolution | 0.024 typical%RH |
| Humidity Repeatability | ±0.1 typical%RH |
| Humidity Hysteresis | ±1 typical%RH |
| Humidity Response Time | 8 typical, τ63%s |
| Humidity Long-Term Drift | <1%RH/yr |
| Temperature Measurement Range | -40 to 85°C |
| Temperature Accuracy | ±0.3 typical°C |
| Temperature Resolution | 0.01 typical°C |
| Temperature Repeatability | ±0.1 typical°C |
| Temperature Response Time | 5 to 30, τ63%s |
| I2C Address | 0x38 |
| Package Dimensions | 3 x 3 x 1.0mm |
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